Search for: [Keywords = "Inconel 718"]

Identification of Structural Components of Turbine Engine Flap After Modification of Casting Technology Parameters

A. Remišová J. Belan A. Sládek

Archives of Foundry Engineering | 2018 | vol.18 | No 2 | DOI: 10.24425/122518

Keywords Turbine engine flap Investment casting Inconel 718

Download PDF Download RIS Download Bibtex

Abstract

First part of the article describes how we can by change of gating system achieve better homogeneity of product made by investment casting. Turbine engine flap was made by investment casting technology – lost wax casting. The casting process was realised in vacuum. The initial conditions (with critical occurrence of porosity) was simulated in ProCAST software. Numerical simulation can clarify during analysis of melt turbulent flow in gate system responsible for creation of entrained oxide films. After initial results and conclusions, the new gating system was created with subsequent turbulence analysis. The new design of gating system support direct flow of metal and a decrease of porosity values in observed areas was achieved. Samples taken from a casting produced with use of newly designed gating system was processed and prepared for metallography. The second part of article deals with identification of structural components in used alloy - Inconel 718. The Ni – base superalloys, which are combined unique physical and mechanical properties, are used in aircraft industry for production of aero engine most stressed parts, as are turbine blades.

Go to article

Authors and Affiliations

A. Remišová

J. Belan

A. Sládek

Analysis of advanced additive technology in direct metal laser sintering and precision casting method

J. Robl J. Sedlák Z. Pokorný P. Ňuksa I. Barényi J. Majerík

Bulletin of the Polish Academy of Sciences Technical Sciences | 2020 | 68 | No. 1 | 109-118 | DOI: 10.24425/bpasts.2020.131842

Keywords test samples additive technology DMLS method precision casting Inconel 718

Download PDF Download RIS Download Bibtex

Abstract

The paper deals with analysis of samples made of Inconel 718 nickel superalloy, produced using direct metal laser sintering (DMLS), known as “sintering”, and precision casting technologies. The theoretical part is focused on the characteristics of producing samples of the nickel superalloy by modern additive methods (those for processing metallic materials) and by the conventional technology of precision casting. The practical part involves the investigation of the mechanical properties and texture of the surfaces of the tested samples. A significant part of this study is devoted to analysis of fracture surfaces and EDX experimental testing of TEM lamella by using of electron microscopy methods. The conclusions of this paper include a discussion, evaluation and explanation of both technologies applied on tested samples. Finally, the main benefits of using modern additive technologies in the design and production of heat-resistant components of turbochargers are discussed.

Go to article

Authors and Affiliations

J. Robl

J. Sedlák

Z. Pokorný

P. Ňuksa

I. Barényi

J. Majerík

Modelling of Plastic Flow Behaviour of Metals in the Hot Deformation Process Using Artificial Intelligence Methods

Barbara Mrzygłód A. Łukaszek-Sołek Izabela Olejarczyk-Wożeńska K. Pasierbiewicz

Archives of Foundry Engineering | 2022 | vol. 22 | No 3 | 41-52 | DOI: 10.24425/afe.2022.140235

Keywords Adaptive Neuro-fuzzy Inference System Rheological model Inconel 718 Hot deformation

Download PDF Download RIS Download Bibtex

Abstract

Hot deformation of metals is a widely used process to produce end products with the desired geometry and required mechanical properties. To properly design the hot forming process, it is necessary to examine how the tested material behaves during hot deformation. Model studies carried out to characterize the behaviour of materials in the hot deformation process can be roughly divided into physical and mathematical simulation techniques.
The methodology proposed in this study highlights the possibility of creating rheological models for selected materials using methods of artificial intelligence, such as neuro-fuzzy systems. The main goal of the study is to examine the selected method of artificial intelligence to know how far it is possible to use this method in the development of a predictive model describing the flow of metals in the process of hot deformation.
The test material was Inconel 718 alloy, which belongs to the family of austenitic nickel-based superalloys characterized by exceptionally high mechanical properties, physicochemical properties and creep resistance. This alloy is hardly deformable and requires proper understanding of the constitutive behaviour of the material under process conditions to directly enable the optimization of deformability and, indirectly, the development of effective shaping technologies that can guarantee obtaining products with the required microstructure and desired final mechanical properties.
To be able to predict the behaviour of the material under non-experimentally tested conditions, a rheological model was developed using the selected method of artificial intelligence, i.e. the Adaptive Neuro-Fuzzy Inference System (ANFIS).
The source data used in these studies comes from a material experiment involving compression of the tested alloy on a Gleeble 3800 thermo-mechanical simulator at temperatures of 900, 1000, 1050, 1100, 1150oC with the strain rates of 0.01 - 100 s-1 to a constant true strain value of 0.9.
To assess the ability of the developed model to describe the behaviour of the examined alloy during hot deformation, the values of yield stress determined by the developed model (ANFIS) were compared with the results obtained experimentally. The obtained results may also support the numerical modelling of stress-strain curves.

Go to article

Authors and Affiliations

Barbara Mrzygłód

e-mail:

ORCID:

A. Łukaszek-Sołek

1

e-mail:

ORCID:

Izabela Olejarczyk-Wożeńska

e-mail:

ORCID:

K. Pasierbiewicz

1

e-mail:

ORCID:

AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Cracow, Poland

Electrical discharge machining of difficult to cut materials

Rafał Świercz Dorota Oniszczuk-Świercz Lucjan Dąbrowski

Archive of Mechanical Engineering | 2018 | vol. 65 | No 4 | 461-476 | DOI: 10.24425/ame.2018.125437

Keywords EDM Inconel 718 surface roughness material removal rate Response surface methodology (RSM)

Download PDF Download RIS Download Bibtex

Abstract

The development of industry is determined by the use of modern materials in the production of parts and equipment. In recent years, there has been a significant increase in the use of nickel-based superalloys in the aerospace, energy and space industries. Due to their properties, these alloys belong to the group of materials hard-to-machine with conventional methods. One of the non-conventional manufacturing technologies that allow the machining of geometrically complex parts from nickel-based superalloys is electrical discharge machining. The article presents the results of experimental investigations of the impact of EDM parameters on the surfaces roughness and the material removal rate. Based on the results of empirical research, mathematical models of the EDM process were developed, which allow for the selection of the most favourable processing parameters for the expected values of the surface roughness Sa and the material removal rate.

Go to article

Bibliography

[1] C.P. Mohanty, S.S. Mahapatra, and M.R. Singh. An experimental investigation of machinability of Inconel 718 in electrical discharge machining. Procedia Materials Science, 6:605–611, 2014. doi: 10.1016/j.mspro.2014.07.075.
[2] S. Skoczypiec. Discussion of ultrashort voltage pulses electrochemical micromachining: a review. The International Journal of Advanced Manufacturing Technology, 87(1-4):177–187, 2016. doi: 10.1007/s00170-016-8392-z.
[3] A. Ruszaj, J. Gawlik, and S. Skoczypiec. Electrochemical machining – special equipment and applications in aircraft industry. Management and Production Engineering Review, 7(2):34–41, 2016. doi: 10.1515/mper-2016-0015.
[4] B.K. Sahu, S. Datta, and S.S. Mahapatra. On electro-discharge machining of Inconel 718 super alloys: an experimental investigation. Materials Today: Proceedings, 5(2):4861–4869, 2018. doi: 10.1016/j.matpr.2017.12.062.
[5] L. Li, Z.Y. Li, X.T. Wei, and X. Cheng. Machining characteristics of Inconel 718 by sinking-DM and wire-EDM. Materials and Manufacturing Processes, 30(8):968–973, 2015 doi: 10.1080/10426914.2014.973579.
[6] R. Świercz and D. Oniszczuk-Świercz. Influence of electrical discharge pulse energy on the surface integrity of tool steel 1.2713. Proceedings of the 26th International Conference on Metallurgy and Materials, pages 1450–1455, Brno, Czech Republic, 24–26 May 2017. WOS:000434346900234.
[7] M. Kunieda, B. Lauwers, K.P. Rajurkar, and B.M. Schumacher. Advancing EDM through fundamental insight into the process. CIRP Annals – Manufacturing Technology, 54(2):64–87, 2005. doi: 10.1016/S0007-8506(07)60020-1.
[8] B. Izquierdo, J.A. Sánchez, S. Plaza, I. Pombo, and N. Ortega. A numerical model of the EDM process considering the effect of multiple discharges. International Journal of Machine Tools and Manufacture, 49(3-4):220–229, 2009. doi: 10.1016/j.ijmachtools.2008.11.003.
[9] B. Izquierdo, S. Plaza, J.A. Sánchez, I. Pombo, and N. Ortega. Numerical prediction of heat affected layer in the EDM of aeronautical alloys. Applied Surface Science, 259:780–790, 2012. doi: 10.1016/j.apsusc.2012.07.124.
[10] G. Puthumana. An influence of parameters of micro-electrical discharge machining on wear of tool electrode. Archive of Mechanical Engineering, 64(2):149–163, 2017. doi: 10.1515/meceng- 2017-0009.
[11] A. Żyra, R. Bogucki, and S. Skoczypiec. Austenitic steel surface integrity after EDM in different dielectric liquids. Technical Transactions, 12:231–242, 2017. doi: 10.4467/2353737XCT.17.222.7765.
[12] J. Holmberg, A. Wretland, J. Berglund, and T. Beno. Surface integrity after post processing of EDM processed Inconel 718 shaft. The International Journal of Advanced Manufacturing Technology, 95(5-8):2325–2337, 2018. doi: 10.1007/s00170-017-1342-6.
[13] Z. Chen, J. Moverare, R.L. Peng, and S. Johansson. Surface integrity and fatigue performance of Inconel 718 in wire electrical discharge machining. Procedia CIRP, 45:307–310, 2016. doi: 10.1016/j.procir.2016.02.053.
[14] C. Upadhyay, S. Datta, M. Masanta, and S.S. Mahapatra. An experimental investigation emphasizing surface characteristics of electro-discharge-machined Inconel 601. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 39(8):3051–3066, 2017. doi: 10.1007/s40430-016-0643-2.
[15] D. Oniszczuk-Świercz and R. Świercz. Surface texture after wire electrical discharge machining. Proceedings of the 26th International Conference on Metallurgy and Materials, pages 1400– 1406, Brno, Czech Republic, 24–26 May 2017. WOS:000434346900226.
[16] L. Straka, I. Corný, J. Pitel’, and S. Hašová. Statistical approach to optimize the process parameters of HAZ of tool steel EN X32CrMoV12-28 after die-sinking EDM with SF-Cu electrode. Metals, 7(2):35, 2017. doi: 10.3390/met7020035.
[17] P. Vishnu, N. Santhosh Kumar, and M. Manohar. Performance prediction of electric discharge machining of Inconel-718 using artificial neural network. Materials Today: Proceedings, 5(2):3770–3780, 2018. doi: 10.1016/j.matpr.2017.11.630.
[18] V. Aggarwal, S.S. Khangura, and R.K. Garg. Parametric modeling and optimization for wire electrical discharge machining of Inconel 718 using response surface methodology. The International Journal of Advanced Manufacturing Technology, 79(1-4):31–47, 2015. doi: 10.1007/s00170-015-6797-8.
[19] S. Prabhu and B.K. Vinayagam. Multiresponse optimization of EDM process with nanofluids using TOPSIS method and genetic algorithm. Archive of Mechanical Engineering, 63(1):45–71, 2016. doi: 10.1515/meceng-2016-0003.
[20] Rahul, K. Abhishek, S. Datta, B.B. Biswal, and S.S. Mahapatra. Machining performance optimization for electro-discharge machining of Inconel 601, 625, 718 and 825: an integrated optimization route combining satisfaction function, fuzzy inference system and Taguchi approach. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 39(9):3499–3527, 2017. doi: 10.1007/s40430-016-0659-7.
[21] M. Tanjilul, A. Ahmed, A.S. Kumar, and M. Rahman. A study on EDM debris particle size and flushing mechanism for efficient debris removal in EDM-drilling of Inconel 718. Journal of Materials Processing Technology, 255:263–274, 2018. doi: 10.1016/j.jmatprotec.2017.12.016.
[22] A. Ahmed, A. Fardin, M. Tanjilul, Y.S. Wong, M. Rahman, and A.S. Kumar. A comparative study on the modelling of EDM and hybrid electrical discharge and arc machining considering latent heat and temperature-dependent properties of Inconel 718. The International Journal of Advanced Manufacturing Technology, 94(5-8):2729–2737, 2018. doi: 10.1007/s00170-017-1100-9.
[23] S. Kumar, A.K. Dhingra, and S. Kumar. Parametric optimization of powder mixed electrical discharge machining for nickel-based superalloy inconel-800 using response surface ethodology. Mechanics of Advanced Materials and Modern Processes, 3:7, 2017. doi: 10.1186/s40759-017-0022-4.
[24] G.S. Prihandana, T. Sriani, M. Mahardika, M. Hamdi, N. Miki, Y.S. Wong, and K. Mitsui. Application of powder suspended in dielectric fluid for fine finish micro-EDM of Inconel 718. The International Journal of Advanced Manufacturing Technology, 75(1-4):599–613, 2014. doi: 10.1007/s00170-014-6145-4.
[25] G. Talla, S. Gangopadhyay, and C.K. Biswas. Effect of powder-suspended dielectric on theEDM characteristics of Inconel 625. Journal of Materials Engineering and Performance, 25(2):704– 717, 2016. doi: 10.1007/s11665-015-1835-0.
[26] A. Torres, I. Puertas, and C.J. Luis. EDM machinability and surface roughness analysis of INCONEL 600 using graphite electrodes. The International Journal of Advanced Manufacturing Technology, 84(9-12):2671–2688, 2016. doi: 0.1007/s00170-015-7880-x.
[27] S. Spadło, P. Młynarczyk, and K. Łakomiec. Influence of the of electrical discharge alloying methods on the surface quality of carbon steel. The International Journal of Advanced Manufacturing Technology, 89(5-8):1529–1534, 2017. doi: 10.1007/s00170-016-9168-1.
[28] S. Spadło, J. Kozak, and P. Młynarczyk. Mathematical modelling of the electrical discharge mechanical alloying process. Procedia CIRP, 6:422–426, 2013. doi: 10.1016/j.procir.2013.03.031.
[29] I. Pliszka, N. Radek, and A. Gądek-Moszczak. Properties of WC-Cu electro spark coatings subjected to laser modification. Tribologia, 5:73–79, 2017.
[30] T. Chmielewski, D. Golański, and W. Włosiński. Metallization of ceramic materials based on the kinetic energy of detonation waves. Bulletin of the Polish Academy of Sciences Technical Sciences, 63(2):449–456, 2015. doi: 10.1515/bpasts-2015-0051.
[31] J. Holmberg, A. Wretland, and J. Berglund. Grit blasting for removal of recast layer from EDM process on Inconel 718 shaft: an evaluation of surface integrity. Journal of Materials Engineering and Performance, 25(12):5540–5550, 2016. doi: 10.1007/s11665-016-2406-8.
[32] A. Ruszaj, S. Skoczypiec, and D. Wyszyński. Recent developments in abrasive hybrid manufacturing processes. Management and Production Engineering Review, 8(2):81–90, 2017. doi: 10.1515/mper-2017-0020.
[33] T. Sałaciński, M. Winiarski, T. Chmielewski, and R. Świercz. Surface finishing using ceramic fiber brush tools. Proceedings of the 26th International Conference on Metallurgy and Material, pages 1220–1226, Brno, Czech Republic, 24–26 May 2017. WOS:000434346900195.
[34] R. Świercz and D. Oniszczuk-Świercz. Experimental investigation of surface layer properties of high thermal conductivity tool steel after electrical discharge machining. Metals, 7(12):550, 2017. doi: 10.3390/met7120550.
[35] Douglas C. Montgomery. Design and Analysis of Experiments. 9th edition. Wiley. 2017.
[36] I. Ayesta, B. Izquierdo, J.A. Sánchez, J.M. Ramos, S. Plaza, I. Pombo, N. Ortega, H. Bravo, R. Fradejas, and I. Zamakona. Influence of EDM Parameters on slot machining in C1023 aeronautical alloy. Procedia CIRP, 6:129–134, 2013. doi: 10.1016/j.procir.2013.03.059.

Go to article

Authors and Affiliations

Rafał Świercz

1

Dorota Oniszczuk-Świercz

1

Lucjan Dąbrowski

1

Warsaw University of Technology, Institute of Manufacturing Technology, Warsaw, Poland.

Experimental Investigations of Tool Wear in Vibration-Assisted Turning of Inconel 718

Srihari Dodla

Archives of Metallurgy and Materials | 2022 | vol. 67 | No 3 | 949-953 | DOI: 10.24425/amm.2022.139687

Keywords Inconel 718 Ultrasonic assisted turning Dry machining deviation cutting forces temperature

Download PDF Download RIS Download Bibtex

Abstract

In the current paper, the effect of tool wear for a constant period of time (360 s) during conventional and ultrasonic assisted machining of Inconel 718 is investigated in terms of cutting forces, temperature, and deviation measurements. For fixed process parameters turning experiments have been performed with and without the application of tangential vibration. Ultrasonic assisted turning (UAT) experiments have been compared with conventional turning (CT). The experimental results reveal that cutting forces and temperature increase linearly in the case of UAT whereas remaining constant in CT for a constant period of time. Besides the tool wear rate in the case of UAT is more than that in the CT.

Go to article

Authors and Affiliations

Srihari Dodla

1

e-mail:

ORCID:

Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi-221005, India

Laser Welding of TA15 Titanium Alloy and Inconel 718 Dissimilar Metals

Qi An Dongting Wu Peng Liu Yong Zou

Archives of Metallurgy and Materials | 2022 | vol. 67 | No 4 | 1267-1276 | DOI: 10.24425/amm.2022.141051

Keywords TA15 titanium alloy Inconel 718 nickel-based alloy laser welding microstructure tensile strength and fracture characteristic

Download PDF Download RIS Download Bibtex

Abstract

This paper studied the effect of laser welding technology on dissimilar metal welding joints of TA15 titanium alloy and Inconel 718 nickel-based alloy. The research results indicate that the laser welding of TA15 titanium alloy and Inconel 718 nickel-based alloy directly was difficult to form well, which due to the intermetallic compounds caused the joint brittle. When the pure Cu foil was used as the filling layer, the quality of the welding joints can be improved effectively. The experimental results also indicate that there were brittle intermetallic-compounds in the laser welding seam, and the laser power had an important influence on the performance and mechanical properties of the dissimilar metal joint. The maximum average tensile strength of the welding joint of 2300 W was increased to 252.32 MPa. Scanning electron microscope(SEM) results show that the fracture morphology was river pattern, a typical morphological of cleavage fracture, and the mode was brittle fracture.

Go to article

Authors and Affiliations

Qi An

1 2

e-mail:

ORCID:

Dongting Wu

1

e-mail:

ORCID:

Peng Liu

3

e-mail:

ORCID:

Yong Zou

4

e-mail:

ORCID:

Shandong University, Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Jinan, 250061, China
Shandong University, School of Materials Science and Engineering, Jinan, 250061, China
Shandong Jianzhu University, School of Materials Science and Engineering, Jinan, 250101, China
Shandong University, Jinan Shandong Engineering & Technology Research Center for Modern Welding, 250061, China

Search results

Filters

Search results

Identification of Structural Components of Turbine Engine Flap After Modification of Casting Technology Parameters

Abstract

Authors and Affiliations

Analysis of advanced additive technology in direct metal laser sintering and precision casting method

Abstract

Authors and Affiliations

Modelling of Plastic Flow Behaviour of Metals in the Hot Deformation Process Using Artificial Intelligence Methods

Abstract

Authors and Affiliations

Electrical discharge machining of difficult to cut materials

Abstract

Bibliography

Authors and Affiliations

Experimental Investigations of Tool Wear in Vibration-Assisted Turning of Inconel 718

Abstract

Authors and Affiliations

Laser Welding of TA15 Titanium Alloy and Inconel 718 Dissimilar Metals

Abstract

Authors and Affiliations