Paper Title:
Experimental Research on the Semi-Solid Formability of 7A09 Aluminum Alloy Impeller
  Abstract

The impeller is an important component applied in airplanes, ships and weapons. It is difficult to form the complicated geometry of the impeller by using the conventional forging and casting technology. Semi-solid forming is a promising forming process that can produce complicated and high-quality components of wrought aluminum alloys. In this paper, the formability of the impeller was investigated by using advanced semi-solid forming technology and self-designed combined die, as well as quick forging hydraulic press. Experimental results show that the formability of the impeller increases with the increase of reheating temperature and holding time of the billet. When heating temperature and holding time during the pretreatment of the billet were 620°C and 25 min respectively, reheating temperature and holding time of the billet before thixoforging were 600°C and 90 min respectively, preheating temperature of the die was 320°C , the impeller was formed perfectly on the quick forging hydraulic press.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
3852-3856
DOI
10.4028/www.scientific.net/AMR.189-193.3852
Citation
F. Han, W. W. Wang, S. J. Luo, Z. M. Du, "Experimental Research on the Semi-Solid Formability of 7A09 Aluminum Alloy Impeller", Advanced Materials Research, Vols. 189-193, pp. 3852-3856, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yu.A. Bocharov, B.I. Semenov, K.M. Kushtarov, Yu.A. Gladkov, L.V. Khizhniakova
Abstract:Technology requirements for a billet micro globular structure development and following deformation are the basic inputs in a conceptual...
102
Authors: Frederik Knauf, I. Seidl, Gerhard Hirt
Abstract:Rheoforging is a modification of semi-solid forging starting directly from the liquid phase instead of reheating of a billet. In this...
464
Authors: Rong Xi Yi, Xiao Qiu Zheng, Shi Kun Xie, Xiu Yan Guo
Abstract:The influences of heating temperature and holding time on the microstructures were investigated during the semi-solid remelting process of...
1854
Authors: Da Zhi Zhao, Fu Xiao Yu, Fang Liu, Ke Zhun He
Chapter 2: Micro / Nano Materials
Abstract:The billets of AlMg0.9Si0.7 alloy, which were cast through the direct chill (DC) casting process of low superheat, were...
549
Authors: Jokin Lozares, Zigor Azpilgain, Iñaki Hurtado, Rafael Ortubay, Susana Berrocal
Semi-Solid Processes
Abstract:The present paper is focused on the thixo lateral forging of a nearly 3 Kg commercial automotive spindle. A thixoforming cell has been...
357