E. Halbritter

15033342100

Publications - 2

Examination of formability of cast aluminium alloy

Publication Name: Materials Science Forum

Publication Date: 2003-01-01

Volume: 414-415

Issue: Unknown

Page Range: 15-20

Description:

Ring upsetting has been used to upset AlSi9Cu3 cast alloy in order to examine formability as well as the effect of deformation. Maier scalar quantity, which characterises the stress state, has been calculated. It is concluded that, from the point of view of maximum deformation, ring upsetting tests are more advantageous than simple upsetting tests.

Open Access: Yes

DOI: 10.4028/www.scientific.net/msf.414-415.15

Calculation of the optimal shape of nonconical dies by minimizing necessary forces

Publication Name: Advances in Engineering Software

Publication Date: 1999-09-15

Volume: 30

Issue: 9-11

Page Range: 735-740

Description:

A mathematical model is given for the metal forming in an axisymmetric nonconical converging die. By using the Maple V system a semianalytical algorithm is proposed for the calculation of the optimal shape of the die which minimizes the consumed energy of the deformation and the power of the friction forces at the wall. Two examples are presented to demonstrate the efficiency of the proposed method. © 1999 Elsevier Science Ltd and Civil-Comp Ltd. All rights reserved.

Open Access: Yes

DOI: 10.1016/S0965-9978(98)00117-3