Paper Title:
The SEED Technology for Semi-Solid Processing of Aluminum Alloys: A Metallurgical and Process Overview
  Abstract

As part of the foundry technology program, Alcan is developing a liquid-based slurrymaking process known as the SEED technology for semi-solid forming. The technology is presently entering the industrial and commercial stages, and will be used by the first customers in late 2006. The semi-solid process offers many advantages to economically fabricate near-net-shape parts having superior quality. The SEED process helps to overcome problems experienced with thixocasting and especially the high cost of feedstock. The SEED process involves two main steps: 1) heat extraction to achieve a desired liquid/solid mixture, and 2) drainage of an excess liquid to produce a self-supporting semi-solid slug that is formed under pressure. An overview of the industrial SEED technology advantages such as the alloy processing flexibility (A356, AA6061) and large slug dimensions and weights, is presented. The influence of the SEED processing parameters (slurry preparation) on the final mechanical properties and the microstructure evolution is also reported.

  Info
Periodical
Solid State Phenomena (Volumes 116-117)
Edited by
C.G. Kang, S.K. Kim and S.Y. Lee
Pages
472-477
DOI
10.4028/www.scientific.net/SSP.116-117.472
Citation
J. Langlais, A. Lemieux, "The SEED Technology for Semi-Solid Processing of Aluminum Alloys: A Metallurgical and Process Overview", Solid State Phenomena, Vols. 116-117, pp. 472-477, 2006
Online since
October 2006
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: Hwa Chul Jung, Ye Sik Kim, Kwang Seon Shin
Abstract:The demand for magnesium alloys has increased significantly during the past decade in the automotive and electronic industries where weight...
397
Authors: Hong Yan, Fa Yun Zhang, Wei Pan
Abstract:The microstructural evolution of SiCp/AZ61 composites during partial remelting was investigated. The results indicated that the suitable...
545
Authors: Zheng Tian, Zhan Yi Cao, Jian Meng
Abstract:The effect of yttrium addition and heat treatment on the mechanical properties and microstructure of AM60 magnesium alloy have been...
1319
Authors: W.M. Mao, Z.Z. Chen, H.W. Liu, Y.G. Li
Chapter 4: Process Development
Abstract:The semi-solid slurry of A356 aluminum alloy was prepared through a serpentine pouring channel, which is a new method proposed recently for...
404
Authors: Bin Yang, W.M. Mao, Jian Nan Zeng, Xiao Jun Song
Chapter 4: Process Development
Abstract:The semi-solid slurry of 7075 aluminum alloy was prepared by using an innovative non-stirring technology that can be called inverted...
415