Print Page | Sign In | Join
Online Store: ET '04 Individual Papers
Main Storefront

Evaluation Of A New FEM Criterion For Seam Welds Quality Prediction In Aluminum

Item Options
Sign in for your pricing!
Price: $20.00
Quantity: *

Evaluation Of A New FEM Criterion For Seam Welds Quality Prediction In Aluminum Extruded Profiles

Lorenzo Donati and Luca Tomesani, University of Bologna, Department of Mechanical Engineering and
Vincenzo Giacomelli, Compes SpA

Track: DIE DESIGN AND TECHNOLOGY - Finite Element Method

ABSTRACT ---The first review and comparison of methods for predicting the quality
and strength of seam welds in aluminum-extruded profiles is here presented. Inasmuch
a general methodology for weld quality prediction has, so far, not been presented, the
existing rules and proposed criteria for sound welds production are reviewed, rendering
them in a form suitable for finite element method (FEM) practice. Then, based on both
original and bibliographical experiments, the material flow fields of a AA6082 aluminum
alloy inside the welding chambers are reconstructed by means of complete
thermomechanical FEM analyses, in order to apply the identified criteria and verify
them by evaluating similarities with experimental results. Thus, the reliability and
robustness of the applied criteria in a wide range of operative conditions are evaluated
and an original criterion for welding quality prediction is eventually proposed that best
fits experimental evidences. An extensive campaign for weld strength evaluation is also
performed by means of tensile tests carried out on the extruded profiles, the results
being related to the process parameters of the extrusion.

© Extrusion Technology for Aluminum Profiles Foundation (ET Foundation). All rights reserved. No part of The Proceedings may be reproduced in any form without the express written permission of the ET Foundation.