Effects of toolpath and clamping strategies in machining distortion of stainless-steel parts

Heat exchangers in new nuclear power generation plants are made of thin AISI 316L stainless-steel plates stacked together in order to improve their efficiency and compactness. To ensure the assembly, the global distortion of those plates must be mastered and minimized, mainly by predicting the evolu...

Full description

Saved in:
Bibliographic Details
Published in:Procedia CIRP 2019-01, Vol.82, p.427-431
Main Authors: Cherif, Iheb, Outeiro, José, Cotton, Dominique, Poulachon, Gérard, Charrondiere, Guillaume, Brosse, Alexandre
Format: Article
Language:English
Subjects:
Clamping
Engineering Sciences
Machining
Tool path
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Heat exchangers in new nuclear power generation plants are made of thin AISI 316L stainless-steel plates stacked together in order to improve their efficiency and compactness. To ensure the assembly, the global distortion of those plates must be mastered and minimized, mainly by predicting the evolution of the residual stress field during their manufacturing process chain. During machining, those residual stresses are redistributed to reach another equilibrium state, leading to a macroscopic part distortion. The main objective of this work is to study experimentally the influence of the machining toolpath and clamping strategies on the global part distortion. Then, a part distortion model is developed in order to verify the clamping effect on the distortion.
ISSN:2212-8271
2212-8271
DOI:10.1016/j.procir.2019.04.065