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Number of results: 22
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Materials Used in the Automotive Industry

A. Trytek M. Tupaj M. Mróz A.W. Orłowicz
Archives of Foundry Engineering | 2015 | No 2 | DOI: 10.1515/afe-2015-0042
Keywords Automotive industry Materials
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Abstract

Elaborated shapes of many car components are the reason for which the use of casting techniques to fabricate them is a solution wellfounded

from the economical point of view. Currently applicable regulatory requirements concerning emissions of exhaust fumes force the

carmakers to reduce the overall weight of their products, as this is a basic precondition for reducing fuel consumption. As a result, newly

launched car models contain a continuously increasing share of thin-walled castings made of materials which ensure a satisfactory level of

service properties. At the same time, developing new technological processes allowing to extend the service life of individual components

by means of surface improving becomes more and more important.

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Authors and Affiliations

A. Trytek
M. Tupaj
M. Mróz
A.W. Orłowicz

Hardware Implementation of an Enhanced Security and Authentication-Related Automotive CAN Bus Prototype

Asmae Zniti Nabih EL Ouazzani
International Journal of Electronics and Telecommunications | 2023 | vol. 69 | No 1 | 83-88 | DOI: 10.24425/ijet.2023.144335
Keywords CAN automotive security attack authentication
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Abstract

In this paper a new security technique aiming to ensure safe and reliable communications between different nodes on an automotive Controller Area Network (CAN) is presented. The proposed method relies on a robust authentication code using Blake-3 as a hash algorithm within an adapted structure that includes a monitor node. A prototype is implemented and run effectively to perform hardware simulations of real case-based security problems of automotive embedded CAN systems. As a result, data transfer can take place on a newly enhanced CAN bus according to the standard protocol without being intercepted nor tampered with by unauthorized parties thereby highlighting the effectiveness of the proposed technique.
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Authors and Affiliations

Asmae Zniti
1
Nabih EL Ouazzani
1
  1. Faculty of Sciences and Technology (FST), University Sidi Mohamed Ben Abdellah, Signals Systems and Components Laboratory (LSSC), Fez, Morocco

Remote System for Reading Traffic Signs and Information

Konrad Janisz Jacek Stępień Szczepan Odrobina
International Journal of Electronics and Telecommunications | 2018 | vol. 64 | No 2 | DOI: 10.24425/119374
Keywords systems automotive electronics telecommunications traffic signs reading Internet of Things
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Abstract

This paper presents an experimental system for remote communication between road users and traffic signs. Implemented solution consists of two modules: a transmitter (traffic sign), including novel system for remote waking-up by the passing vehicle with use of the quasi-passive (biased) diode detector circuit, and a receiver (vehicle), which is responsible for wake-up signaling and interpreting received messages. Both modules use Wi-Fi protocol operating in 2.4 GHz ISM band for sending data, and OOK signaling in 868 MHZ ISM band for sending wake-up signals. The paper provides theoretical analysis, description of design challenges and chosen solutions, and finally, laboratory measurements as well as the results of tests conducted in the systems’ target environment with a moving vehicle, confirming correct operation of the system.
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Authors and Affiliations

Konrad Janisz
Jacek Stępień
Szczepan Odrobina

An Experimental Test Bench for the Tire Pressure Monitoring System – Discussion of Measurement and Communication Issues

Sławomir Gryś
International Journal of Electronics and Telecommunications | 2019 | vol. 65 | No 1 | 51-56 | DOI: 10.24425/123565
Keywords automotive technology driving safety temperature and pressure measurements calibration
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Abstract

The paper presents a method for wireless measurement of car wheel air pressure and temperature using the Tire Pressure Monitoring System, or TPMS module - one of the latest safety systems introduced by the automotive industry - with readings taken on a specifically designed test bench. The paper describes the structure and operating principle of the test bench key elements and how they work with the sensors, the TPMS module, and reference instruments, as well as the data format and accuracy of data transmission between TPMS and the host computer. The software designed for an embedded system emulating the real on-board computer allows for observing raw sensor readings and the effect of calibration in two points of the characteristics.

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Authors and Affiliations

Sławomir Gryś

Automated test bench for research on electrostatic separation in plastic recycling application

Roman Regulski Dorota Czarnecka-Komorowska Cezary Jędryczka Dariusz Sędziak Dominik Rybarczyk Krzysztof Netter Mariusz Barański Mateusz Barczewski
Bulletin of the Polish Academy of Sciences Technical Sciences | 2021 | 69 | 2 | e136719 | DOI: 10.24425/bpasts.2021.136719
Keywords recycling automotive plastics waste separation electrostatic separator
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Abstract

Many researchers in the developed countries have been intensively seeking effective methods of plastic recycling over the past years. Those techniques are necessary to protect our natural environment and save non-renewable resources. This paper presents the concept of an electrostatic separator designed as a test bench dedicated to the separation of mixed plastic waste from the automotive industry. According to the current policy of the European Union on the recycling process of the automotive industry, all these waste materials must be recycled further for re-entering into the life cycle (according to the circular economy). In this paper, the proposed concept and design of the test bench were offered the feasibility to conduct research and technological tests of the electrostatic separation process of mixed plastics. The designed test bench facilitated assessing the impact of positions of high-voltage electrodes, the value and polarity of the high voltage, the variable speed of feeders and drums, and also triboelectrification parameters (like time and intensity) on the process, among others. A specialized computer vision system has been proposed and developed to enable quick and reliable evaluation of the impact of process parameters on the efficiency of electrostatic separation. The preliminary results of the conducted tests indicated that the proposed innovative design of the research stand ensures high research potential, thanks to the high accuracy of mixed plastics in a short time. The results showed the significant impact of the corona electrode position and the value of the applied voltage on the separation process effectiveness. It can be concluded that the results confirmed the ability to determine optimally the values of the studied parameters, in terms of plastic separation effectiveness. This study showed that this concept of an electrostatic separator designed as a test bench dedicated for separation of mixed plastic waste can be widely applied in the recycling plastic industry.
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Authors and Affiliations

Roman Regulski
1
ORCID: ORCID
Dorota Czarnecka-Komorowska
2
ORCID: ORCID
Cezary Jędryczka
3
ORCID: ORCID
Dariusz Sędziak
1
ORCID: ORCID
Dominik Rybarczyk
1
ORCID: ORCID
Krzysztof Netter
1
ORCID: ORCID
Mariusz Barański
3
ORCID: ORCID
Mateusz Barczewski
2
ORCID: ORCID
  1. Institute of Mechanical Technology, Poznan University of Technology, 60-965 Poznań, Poland
  2. Institute of Materials Technology, Poznan University of Technology, 60-965 Poznań, Poland
  3. Institute of Electrical Engineering and Electronics, Poznan University of Technology, 60-965 Poznań, Poland

Comparison of Selected ERP Systems Supporting the Production Planning and Control on the Example of Automotive Industry

Robert Sika Oliwia Wojtala Jakub Hajkowski
Management and Production Engineering Review | 2022 | vol. 13 | No 3 | 39-51 | DOI: 10.24425/mper.2022.142381
Keywords Information technology Enterprise management systems Automotive industry
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Abstract

In many companies, along with the economic development, the use of integrated management systems is becoming more and more common, which are subject to evolution in terms of, inter alia, offered functions and new user requirements. The main purpose of this paper is to compare selected ERP (Enterprise Resource Planning) systems in the field of production planning and control on the example of the automotive industry. The paper presents the contemporary functioning of the automotive industry against the background of issues related to the integrated management systems used in them. The research part presents the proprietary methodology for the assessment of IT systems used in the automotive industry, which included a user survey. The obtained score allowed to indicate the optimal ERP class system supporting production planning and control.
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Authors and Affiliations

Robert Sika
1
ORCID: ORCID
Oliwia Wojtala
2
Jakub Hajkowski
1
ORCID: ORCID
  1. Poznan University of Technology, Faculty of Mechanical Engineering, Poland
  2. Poznan, Poland

The rise and evolution of Polish automotive magazines until 1939

Adam Bańdo
Rocznik Historii Prasy Polskiej | 2019 | t.22 | No 4 | 5-18 | DOI: 10.24425/rhpp.2019.130232
Keywords history of the press polish press Poland in the 19th and 20th centuries automotive magazines automotive press
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Abstract

The article outlines the history of Polish automotive magazines and, additionally, the results of the author’s latest research. The accumulation of hitherto unknown facts and new findings have made it necessary to revise the received view of the subject. So, for instance, the first Polish automotive magazine to be published was Gazeta Automobilowa. It was launched in Lwów in February 1911, five months earlier than Lotnik i Automobilista, until recently believed to be the first Polish car magazine. The article contains an updated, most comprehensive list of Polish automotive periodicals that appeared in print until 1939.

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Authors and Affiliations

Adam Bańdo
ORCID: ORCID

Numerical investigations on the effect of an underbody battery on solar vehicle aerodynamics

Jakub Bobrowski Krzysztof Sobczak
Archives of Thermodynamics | 2021 | vol. 42 | No 4 | 247-260 | DOI: 10.24425/ather.2021.139661
Keywords Automotive aerodynamics Drag reduction Electric vehicle CFD Underbody fairing
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Abstract

The placement of the battery box can have a massive impact on the aerodynamics of an electric vehicle. Although favourable from the viewpoint of vehicle dynamics, an underbody battery box may impair the vehicle aerodynamics. This study aims to quantify the effect of an underbody battery box on the drag force acting on an electric vehicle. Four different variants of the vehicle (original variant, lifted suspension, lifted suspension with an underbody battery box) are investigated by means of computational fluid dynamics. The underbody battery box was found to induce flow separation, resulting in a massive increase in drag force. As a solution, a battery box fairing was designed and tested. The fairing significantly reduced the increase in drag. The results of this study could contribute to the design of more stable and aerodynamically efficient electric vehicles.
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Authors and Affiliations

Jakub Bobrowski
1
Krzysztof Sobczak
1
  1. Institute of Turbomachinery, Lodz University of Technology, 217/221 Wolczanska, 93-005 Łódz Poland

Autonomous cars and their decisions

Dorota Szymborska
Przegląd Filozoficzny. Nowa Seria | 2020 | No 3 | 87-93 | DOI: 10.24425/pfns.2020.133976
Keywords autonomous cars autonomous vehicles ethics future automotive safety ethical dilemmas
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Abstract

The article presents possible ways of development of decision-making processes in autonomous vehicles. The highest degree of autonomy means that it is not the driver but the system, machine or artificial intelligence that makes decisions about road activities. The total autonomy of vehicles gives them predictability, limits the number of accidents they cause, but also highlights the need to develop an ethical system that artificial intelligence will be able to refer to in a critical situation. It is not possible to foresee all the situations that will occur on the roads, so it is necessary to create robot- -human rights that will be a new and binding kind of decalogue. The key issue is that robotic-human rights should be universal, transparent and really applicable to everyone, otherwise there will be chaos on the road and the expected decrease of the number of accidents due to the introduction of autonomous vehicles will not come to pass.

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Authors and Affiliations

Dorota Szymborska

Effect of Iron Phases Crystallization on the Durability of the Bimetallic Connection Between Ring Inserts and the Piston Casting

M. Szucki J. Piątkowski M. Czerepak
Archives of Foundry Engineering | 2023 | vol. 23 | No 2 | 112-118 | DOI: 10.24425/afe.2023.144302
Keywords crystallization Al-Si alloys Iron phases Piston casting Automotive industry
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Abstract

The article presents the most important causes of the unstable connection between cast iron ring inserts and the silumin casting of an engine piston. It is shown that manufacturing defects are mainly related to the alfin processing of inserts in Al-Si alloy (the so-called AS9 alloy). Exceeding the permissible iron content in AS9 alloy causes the crystallization of brittle -Al5FeSi phases. Their unfavorable morphology and large size are the main reasons for the weakening of the diffusion connection between the inserts and the piston, causing an unacceptable proportion of defective products. The study presented in this work was conducted under industrial conditions on a population of 10.000 pistons. Quality control data, production parameters, as well as the micro- and macro-structures of the cast iron inserts, and the interface area between the inserts and the silumin piston, were analyzed. Material and technological solutions have been proposed to reduce the occurrence of casting defects at the insert-piston joint. This includes the introduction of so-called "morphological correctors" of the -Al5FeSi phases, reducing the possibility of gaseous impurities in the AS9 alloy and optimizing the temperature of the alfin alloy.
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Authors and Affiliations

M. Szucki
1
ORCID: ORCID
J. Piątkowski
2
ORCID: ORCID
M. Czerepak
3
  1. Foundry Institute, Technische Universität Bergakademie Freiberg, Bernhard-von-Cotta-Str. 4,09599 Freiberg, Germany
  2. Department of Material Technologies, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland
  3. Federal-Mogul Gorzyce sp. z o.o., Odlewników 52, 39-432 Gorzyce, Poland

Characteristic of DP600 Steel Produced in Hot Rolling Process

Tomasz Kaźmierski Janusz Krawczyk Łukasz Frocisz
Archives of Metallurgy and Materials | 2023 | vol. 68 | No 4 | 1641-1648 | DOI: 10.24425/amm.2023.146234
Keywords Dual phase steels hot rolling process mechanical properties automotive industry
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Abstract

DP600 steels are characterized by a dual phase ferritic-martensitic microstructure, to which they owe their exceptionally favourable combination of high strength and good ductility. One of the production methods for this grade of steel is the hot rolling process. Despite the fact that these steels have been produced on an industrial scale for almost 40 years, they are still being studied intensively, with new research on the formation of their microstructure and properties published every year. This article focuses on the characteristics of DP600 steel produced on a hot rolling mill for applications in automotive industry. The article presents the results of mechanical properties tests and microstructure analysis of DP600 steel obtained in an industrial hot rolling process. The general characteristic of DP600 steel presented in this article, is supplemented with statistical analysis of correlations between chemical composition, selected process parameters and mechanical properties of hot rolled DP600 steel.
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Authors and Affiliations

Tomasz Kaźmierski
1
ORCID: ORCID
Janusz Krawczyk
2
ORCID: ORCID
Łukasz Frocisz
2
ORCID: ORCID
  1. ArcelorMitt al Poland S.A. Unit in Krakow, Tadeusza Sendzimira 1 Street, 31-752 Krakow, Poland; AGH Doctoral School al. Mickiewicza 30, 30-059 Krakow, Poland
  2. AGH University of Krakow, Faculty of Metals Engineering and Computer Science, Al. Mickiewicza 30, 30-059 Krakow, Poland

An Experimental Bench for Testing a S-CAM Front Car Camera

Sławomir Gryś
International Journal of Electronics and Telecommunications | 2022 | vol. 68 | No 4 | 755-760 | DOI: 10.24425/ijet.2022.143882
Keywords automotive technology driving safety ADAS front camera CAN bus traffic sign recognition
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Abstract

The paper presents an experimental stand for testing the front car camera S-CAM with embedded image recognition systems. The camera sends CAN messages these are converted to USART messages by microprocessor based system. The messages are interpreted by MATLAB script on the basis of database of traffic signs in accordance with Polish Road Code. The testing stand is mainly aimed for educating students interested in the fields of electronics and technologies related to automotive branch, as well. The second objective is a research on efficiency of traffic sign recognition system being one of functionalities of S-CAM camera. The technical specification of testing stand, its functionality and limitations were also discussed. The bench operation was illustrated with examples of stiff images, animation and real movies.
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Authors and Affiliations

Sławomir Gryś
1
  1. Częstochowa University of Technology, Faculty of Electrical Engineering, Poland

Selected Cyclic Corrosion Tests in Automotive Industry

Ł. Biało T. Grodniewicz P. Żabiński
Archives of Metallurgy and Materials | 2020 | vol. 65 | No 4 | 1469-1476 | DOI: 10.24425/amm.2020.133715
Keywords corrosion test automotive aluminum heat exchanger corrosion products
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Abstract

Corrosion is a main problem for longtime exploration of heat exchangers in automotive industry. Proper selection of accelerated corrosion test for newly developed material is a key aspect for aluminum industry. The selection of material based on corrosion test includes test duration, chemical spray composition, temperature and number of cycles. The paper present comparison of old and newly developed accelerated corrosion tests for testing automotive heat exchanger. The accelerated test results are comprised with heat exchanger taken from market after life cycle.

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Authors and Affiliations

Ł. Biało
T. Grodniewicz
P. Żabiński
ORCID: ORCID

Research of the New Laboratory Methodology for Measuring the Disintegration of Mixtures with Inorganic Binders Hardened by Dehydration

M. Bruna I. Vasková M. Medňanský P. Delimanová
Archives of Foundry Engineering | 2024 | vol. 24 | No 1 | 80-87 | DOI: 10.24425/afe.2024.149254
Keywords Inorganic binder Alkali silicate Hot curing process Automotive industry
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Abstract

The paper deals with the possibilities of using alkali silicate based inorganic binders for automotive industry aluminium castings production. In recent years, inorganic binders are coming back to the foreground and their manufacturers are developing new processes, which are starting to progressively supersede organic binder systems. Paper describes known knowledge about classic alkali silicate binders with focus on hardening processes and on improving their technological properties. Trends from the area of development and the use new alkali silicate based inorganic binders are also shortly described. As part of the experimental work, specific methods of producing samples were developed, with the help of which properties such as disintegration were subsequently evaluated by measuring abrasion and residual strengths. Characteristics such as residual compressive strength or shear strength at different thermal loads were also evaluated. When comparing the laboratory results with the results of de-coring in real conditions, a high degree of correlation was achieved, which makes it possible to determine the optimal recipe/procedure for the production of geometrically complex cores.
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Bibliography

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[2] Lewandowski, J.L. (1997) Plastics for casting molds. Kraków: WYD AKAPIT.
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[6] Antoš, P., Burian, A. (2002). Water glass - production, structure, properties and uses. Silchem
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[8] Stechman, M., Różycka, D. & Baliński, A. (2003). Modification of aqueous sodium silicate solutions with morphoactive agents. Polish Journal of Chemical Technology. 5(3), 47-50. ISSN (1509-8117).
[9] Jelínek, P. & Škuta, R. (2003). Modified sodium silicates – a new alternative for inorganic foundry binders. Materials Enginering. 10(3), 283.
[10] Mashifana, T. & Sithole, T. (2020). Recovery of silicon dioxide from waste foundry sand and alkaline activation of desilicated foundry sand. Journal of Sustainable Metallurgy. 6, 700-714. DOI: 10.1007/s40831-020-00303-5.
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[14] Izdebska-Szanda, I., Baliński, A., Angrecki, M. & Palma, A. (2014). The effect of nanostructure modification of the silicate binder on its binding characteristics and functional properties. Archives of Metallurgy and Materials. 59(3), 1033-1036. DOI: 10.2478/amm-2014-0173.
[15] Major-Gabryś, K., Dobosz, St.M., Jakubski, J. (2010). Self-hardened moulding sand with hydrated sodium silicate and liquid ester hardeners. In K. Świątkowski (Eds.), Polish Metallurgy in 2006-2010. (328-335). Krakow: Committee of Metallurgy of the Polish Academy of Science.
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[23] Davis, J.R. (1998). Metals Handbook. Desk Edition (2nd ed.) Boca Raton:CRC Press.
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Authors and Affiliations

M. Bruna
1
ORCID: ORCID
I. Vasková
2
ORCID: ORCID
M. Medňanský
1
ORCID: ORCID
P. Delimanová
2
ORCID: ORCID
  1. Faculty of Mechanical Engineering, Department of Technological Engineering, University of Zilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
  2. Institute Of Metallurgy, Faculty of Materials, Metallurgy and Recycling, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia

Production Resource Flexibility Assessment: Case Studies in the Automotive Industry

Oliver Moerth-Teo Gernot Schlögl Muaaz Abdul-Hadi Markus Brillinger Martin Weinzerl Christian Ramsauer
Management and Production Engineering Review | 2022 | vol. 13 | No 3 | 20-29 | DOI: 10.24425/mper.2022.142379
Keywords Production Flexibility Production Resource Flexibility Assessment Automotive industry
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Abstract

The automotive industry is characterized by a high degree of uncertainty. Companies are facing the challenge of producing different systems simultaneously. Additionally, the global quantity of electric vehicles is also expected to increase significantly. This results in the following capability to remain competitive: Effective and efficient adaptions of production systems to model variations and volume increases. While flexible production is identified as the most promising concept, defining the actual flexibility level of included production resources is essential for its proper realization. A literature review on existing flexibility assessment approaches revealed their emphasis on high-level enablers and limited practical applicability in the automotive industry. In contrast, focusing the assessment on single workstations supports the selection of appropriate production resources. Therefore, a simple and structured standard procedure for a production resource flexibility assessment was developed. This theoretical construct was subsequently complemented with practical insights through its application on two real-life case studies within one automotive engineering company. Summarizing and discussing the findings in combination with a conclusion completed this paper.
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Authors and Affiliations

Oliver Moerth-Teo
1
Gernot Schlögl
2
Muaaz Abdul-Hadi
3
Markus Brillinger
3
Martin Weinzerl
4
Christian Ramsauer
1
  1. Institue of Innovation and Industrial Management, Graz University of Technology, Austria
  2. Institue of Production Engineering, Graz University of Technology, Austria
  3. Pro2Future GmbH, Austria
  4. AVL List GmbH, Austria

Fuzzy Evaluation of the Production Strategies, Policies and Methods: Evidence from a Longitudinal Case Study

Aleksandar PESIC Duska PESIC Slavko IVKOVIC
Management and Production Engineering Review | 2024
Keywords fuzzy sets fuzzy triangular numbers production management automotive suppliers
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Abstract

This paper presents a model for evaluating production strategies, policies and methods based on fuzzy set theory. To illustrate the application of a model, the longitudinal case study was carried out in the sector of automotive components and parts production in Serbia. Within the automotive supplier industry, analysis is concentrated on the Cooper Standard company, one of the world’s most prominent component suppliers. The study was conducted with the management team of the Cooper Standard branch in Serbia. Triangular fuzzy numbers are employed to effectively evaluate the critical areas of production management and overall competitiveness over time. The findings of the empirical survey confirmed the usability and usefulness of the proposed approach. Also, the longitudinal character of this case study provided an opportunity to follow the patterns of change over a period of 5 years (2019–2024).
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Authors and Affiliations

Aleksandar PESIC
Duska PESIC
Slavko IVKOVIC

Heat Treatment of the SiMo Iron Castings – Case Study in the Automotive Foundry

B. Cygan M. Stawarz J. Jezierski
Archives of Foundry Engineering | 2018 | vol.18 | No 4 | 103-109 | DOI: 10.24425/afe.2018.125177
Keywords Heat treatment Solidification Process SiMo Cast Iron Exhaust Manifold Automotive Parts
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Abstract

Silicon – molybdenum cast iron commonly called SiMo due to its unique properties has becoming more and more interesting engineering material. The history and development of this alloy is relatively long but, due to the significant difficulties during the manufacturing process resulting in the lower final quality than expected, it has not been applied to often in practice. The biggest challenge is its brittleness as a result of the carbides precipitations. During last few years, thanks to the many important researches made and the general foundry technology development, the interest in SiMo iron has been rapidly growing, especially for the castings for heavy duty applications like corrosion, high temperature and wear abrasion resistant parts. In the article the heat treatment attempts to improve the microstructure of SiMo castings has been presented. The goal was to destroy or at least to refine and uniformly distribute the carbides precipitations to improve mechanical properties of the exhaust manifold castings for the cars. The experiments were carried out for the alloy contains approx. 4% Si, 1% Mo and 3.2%C. The range of the research included: hardness measuring, standard mechanical properties and microstructure for as-cast state and after that the subsequent heat treatment process with another properties check. The result of the heat treatment was the elimination of pearlite from the metal matrix. Moreover, the changes of the carbide molybdenum – rich phase morphology were observed. The dispersion of the carbides precipitations in the carbides area was observed. The experiments proved the possibility to control the microstructure and the mechanical properties of the SiMo castings by means of heat treatment but only to some extent.

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Authors and Affiliations

B. Cygan
M. Stawarz
J. Jezierski

Prioritization of barriers to lean implementation in Indian automotive small & medium sized enterprises

Rupesh Kumar Tiwari Jeetendra Kumar Tiwari
Management and Production Engineering Review | 2018 | vol. 9 | No 2
Keywords lean barriers prioritization Indian automotive SMEs confirmatory factor analysis multipleregression analytic network process super decision software
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Abstract

Lean manufacturing has been the most deliberated concept ever since its introduction. Many organization across the world implemented lean concept and witnessed dramatic improvements in all contemporary performance parameters. Lean manufacturing has been a sort of mirage for the Indian automotive industry. The present research investigated the key lean barriers to lean implementation through literature survey, confirmatory factor analysis, multiple regression, and analytic network process. The general factors to lean implementation were inadequate lean planning, resource constraints, half-hearted commitment from management, and behavioral issues. The most important factor in the context of lean implementation in Indian automotive industry was inadequate lean planning found with the help of confirmatory factor analysis and multiple regression analysis. Further analysis of these extracted factors through analytic network process suggested the key lean barriers in Indian automotive industry, starting from the most important were absence of proper lean implementation methodology, lack of customer focus, absence of proper lean measurement system, inadequate capital, improper selection of lean tools & practices, leadership issues, resistance to change, and poorly defined roles & responsibilities. Though literature identifying various lean barriers are available. The novelty of current research emerges from the identification and subsequent prioritization of key lean barriers within Indian automotive SMEs environment. The research assists in smooth transition from traditional to lean system by identifying key barriers and developing customized framework of lean implementation for Indian automotive SMEs.
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Authors and Affiliations

Rupesh Kumar Tiwari
Jeetendra Kumar Tiwari

Control and integration of milk-run operation in Japanese automotive company in Indonesia

Humiras Hardi Purba Adi Fitra Aina Nindiani
Management and Production Engineering Review | 2019 | vol. 10 | No 1 | DOI: 10.24425/mper.2019.128246
Keywords milk-run just-in-time transportation value stream mapping automotive electronics lean logistics supplychain
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Abstract

The implementation of milk-run in Indonesia has been started since 2005. As a developing

country, there is a challenge to operate milk-run smoothly especially in urban area due to

severe traffic congestion and unfavourable road condition in some areas. This research aimed

to analyze the practice of milk-run operation in one of the biggest Japanese automotive

companies in Indonesia. Transportation Value Stream Mapping (TVSM) is applied in order

to perform just-in-time delivery in the supply chain before operating milk-run. It is discussed

that this company still need to continue in improving milk-run operation. The operation

system needs control and integration from manufacturer, supplier and logistics partner.

The advantage of milk-run operation is cost reduction and also support green logistics in

decreasing emission of carbondioxide (CO2) by reducing the number of trucks used.

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Authors and Affiliations

Humiras Hardi Purba
Adi Fitra
Aina Nindiani

Reducing Flow Time in an Automotive Asynchronous Assembly Line – An application from an automotive factory

Salah Eddine Ayoub El Ahmadi Laila El Abbadi
Management and Production Engineering Review | 2022 | vol. 13 | No 1 | 99-106 | DOI: 10.24425/mper.2022.140880
Keywords Automotive industry flow time asynchronous assembly line buffer time buffer profiles
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Abstract

The automotive industry is a highly competitive sector. Manufacturers must effectively control highly complex production processes in order to fulfil all customer orders for customized cars on time, on budget and to the required quality. In this paper, the authors focus on improving the flow time of asynchronous automotive assembly lines by reducing the buffer time. A simulation-search heuristic procedure was developed and confirmed in a 5 workstations asynchronous assembly line installed in an automotive company. The proposed procedure identifies optimal performing buffer profiles for each storage level which guarantees lowest flow time while keeping the same throughput level. Experiments results show that our new algorithm significantly outperforms existing results, especially for large scale problems.
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Authors and Affiliations

Salah Eddine Ayoub El Ahmadi
1
Laila El Abbadi
1
  1. Engineering Sciences Laboratory, National School of Applied Sciences, Ibn Tofail University, Kenitra, Morocco

Use of Selective Laser Melting (SLM) as a Replacement for Pressure Die Casting Technology for the Production of Automotive Casting

J. Piekło A. Garbacz-Klempka
Archives of Foundry Engineering | 2021 | vo. 21 | No 2 | 9-16 | DOI: 10.24425/afe.2021.136092
Keywords Additive manufacturing (AM) Selective Laser Melting (SLM) Automotive casting AlSi10Mg Mechanical properties Microstructure
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Abstract

Selective laser melting is one of the additive manufacturing technologies that is used to produce complex-shaped components for applications in the automotive industry. The purpose of the changes in the design, technology, and material tests was to make a steering gear housing using the SLM method. The steering gear housing was produced by the pressure casting method using an AlSi9Cu3(Fe) alloy. The construction of this housing is adapted to the specifics of left-hand traffic. The change in technology was related to the change of the position of the steering system from right-hand to left-hand and the demand for a limited number of gear housings. It was necessary to make a virtual model of the housing on the basis of the part that was removed from the vehicle. In SLM technology, the AlSi10Mg aluminum alloy was used as a raw material in the form of CL 32Al gas-atomized powder. After the SLM process was completed, the housings were subjected to heat treatment. The AlSi10Mg alloy fabricated by the SLM method after heat treatment is characterized by good plasticity and an average value of tensile strength. The last stage was to check the geometry of the SLM housing with a 3D scanner. As a result, a map of the dimensional deviations from the nominal values was obtained. This data was used to modify the CAD model before the next fabrication process.
The use of 3D printing technology allowed for the quick production of elements. The time to develop the technology and the production of the first two gear housings based on a 3D model was seven days.
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Authors and Affiliations

J. Piekło
1
ORCID: ORCID
A. Garbacz-Klempka
1
ORCID: ORCID
  1. AGH University of Science and Technology, Faculty of Foundry Engineering, Reymonta 23 Str., 30-059 Kraków, Poland

Fabrication and Characterization of Al6061-Nano Al2O3 Composites by Ultrasonic Assisted Stir Casting followed by Heat Treatment and Hot Forging

Rajesh Purohit M.M.U. Qureshi Ashish Kumar Abhishek Mishra R.S. Rana
Archives of Metallurgy and Materials | 2023 | vol. 68 | No 2 | 791-798 | DOI: 10.24425/amm.2023.142463
Keywords Al6061 Alloy Al6061-Al2O3 nanocomposites XRD analysis FESEM Mechanical Properties Automotive gears
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Abstract

The present work comprises the development of Al6061/nano Al2O3 composites with 0 to 4 weight percent in steps of 0.5 wt. % of nano alumina particles by using ultrasonic assisted stir casting. Casted samples were subjected to heat treatment and hot forging. Further forged and heat-treated gear blanks of nano Al2O3 (0 to 3.0 weight %) reinforced nanocomposites were machined to make spur gears for the wear test. The results have shown that nano Al2O3 reinforcement in the Al6061 matrix with heat treatment and forging improves the hardness and compressive strength up to 3.5 wt. %, after that, it starts decreasing because of the agglomeration of nano alumina particles. SEM results reveal grain refinement of the pure alloy after reinforcement. Removal of porosity and voids observed after forging operation. Wear resistance increasing with incorporation of Al2O3 nanoparticles in base alloy, reinforcement wt. %, precipitation hardening and hot forging also improves wear resistance and mechanical properties. These composites have widespread applications in gear, brake discs, crankshaft, clutch plates, pistons, and other components of automobiles and aircraft structures.
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Authors and Affiliations

Rajesh Purohit
1
M.M.U. Qureshi
1
Ashish Kumar
1
ORCID: ORCID
Abhishek Mishra
1
R.S. Rana
1
  1. Mechanical Engineering Department, MANIT, Bhopal, India-462003

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