The evolution of residual stresses in a stress relief heat treatment of test specimen of alloy 718
2016 (English)In: Mathematical Modelling of Weld Phenomena 11 / [ed] S. Sommitsch, N. Enzinger, P. Mayr, Graz, 2016, Vol. 11, 331-343 p.Conference paper (Refereed)
Manufacturing of aero engine components requires attention to residual stress and final shape of the product in order to meet high quality product standards. This sets very high demands on involved manufacturing steps to meet design requirements. Simulations are used to assure the latter. This requires an appropriate model to account for stress relaxation. The study is part of a project where the aim is to simulate a chain of manufacturing steps e.g. forming, welding and heat treatment. The focus in this paper is on the stress relaxation during the heat treatment step. It is imperative to have relevant data for calibrating this part of a constitutive model. A test procedure resembling the real conditions in the manufacturing chain is proposed. Tests were carried out on test specimens made of Alloy718 and used to calibrate a constitutive model. Comparisons between experimental and simulated results showed very good agreement.
Place, publisher, year, edition, pages
Graz, 2016. Vol. 11, 331-343 p.
Applied Mechanics Manufacturing, Surface and Joining Technology
Research subject Production Technology
IdentifiersURN: urn:nbn:se:hv:diva-10808ISBN: 978-3-85125-490-7 (print)OAI: oai:DiVA.org:hv-10808DiVA: diva2:1081938
11th International Seminar Numerical Analysis of Weldability