ORALS

SESSION: ManufacturingMonPM2-R4 Precision / Ultraprecision Manufacturing	Mamalis International Symposium on Advanced Manufacturing of Advanced Materials and Structures with Sustainable Industrial Applications
Mon Nov, 5 2018 / Room: Sao Conrado (50/2nd)
Session Chairs: Tatsuo Sawada; Session Monitor: TBA

17:10: [ManufacturingMonPM212]
Parameters Optimization of Rotary Forming Process of Nickel Superalloy Metal Plates
Sandra Puchlerska¹ ; Krzysztof Zaba¹ ;⁰ ; Jaroslaw Pyzik² ; ¹AGH University of Science and Technology, Kraków, Poland; ²AGH University of Science and Technology, Krakow, Poland;
Paper Id: 268 [Abstract]

Nickel-based superalloys can be characterized by resistance to high-temperature corrosion and high-temperature creep resistance. For this reason, they are widely used in the production of jet engine critical parts. One of the commonly used materials is Inconel 625, which will be the subject of this research. For Inconel 625 processing, rotary forming can be applied, which results in axially symmetrical elements. An important property of Inconel 625 is strong strain hardening effect. To improve formability, variety of methods can be applied, including heating of the material. The purpose of the research was optimization of rotary forming process parameters of Inconel 625 to produce jet engine critical parts with high quality requirements. Experimental plans based on orthogonal two-level design was created for 3 selected variables - feed rate, spinning rate, and heating. Optimal process parameters were established using multivariate statistical optimization utilizing GridSearch algorithm for finding set of parameters maximizing general product quality, defined as function of several quality factors measures. These parameters were used to set up processes and obtain product that meet quality requirements.

References:
[1] Superalloys II, C. T. Sims, N. S. Stoloff, W. C. Hagel, Wiley, 1987\n[2] A review of spinning, shear forming and flow forming processes, C. C. Wong, T. A. Dean, J. Lin, International Journal of Machine Tools & Manufacture 43 (2003) 1419-1435\n[3] Optimisation of the shear forming process by means of multivariate statistical methods, J. Kunert, R. \nEwers, M. Kleiner, N. Henkenjohann, C. Auer, Technical Report / UniversitA�t Dortmund, SFB 475 KomplexitA�tsreduktion in Multivariaten Datenstrukturen, No. 2005, 23.