自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 27    No. 6    June 2020

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New development of powder metallurgy in automotive industry
TAN Zhao-qiang(谭兆强)1, 2, ZHANG Qing(张青)2, GUO Xue-yi(郭学益)3, ZHAO Wei-jiang(赵伟江)1, ZHOU Cheng-shang(周承商)1, LIU Yong(刘咏)1

1. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China;
2. H?gan?s (China) Co., Ltd., Shanghai 201799, China;
3. School of Metallurgy and Environment, Central South University, Changsha 410083, China

Abstract:The driving force for using powder metallurgy (PM) mostly relies on its near net-shape ability and cost-performance ratio. The automotive application is a main market of PM industry, requiring parts with competitive mechanical or functional performance in a mass production scale. As the automobile technology transforms from traditional internal combustion engine vehicles to new energy vehicles, PM technology is undergoing significant changes in manufacturing and materials development. This review outlines the challenges and opportunities generated by the changes in the automotive technology for PM. Low-cost, high-performance and light-weight are critical aspects for future PM materials development. Therefore, the studies on PM lean-alloyed steel, aluminum alloys, and titanium alloy materials were reviewed. In addition, PM soft magnetic composite applied to new energy vehicles was discussed. Then new opportunities for advanced processing, such as metal injection molding (MIM) and additive manufacturing (AM), in automotive industry were stated. In general, the change in automotive industry raises sufficient development space for PM. While, emerging technologies require more preeminent PM materials. Iron-based parts are still the main PM products due to their mechanical performance and low cost. MIM will occupy the growing market of highly flexible and complex parts. AM opens a door for fast prototyping, great flexibility and customizing at low cost, driving weight and assembling reduction.

 

Key words: automotive; powder metallurgy; lean alloy; Al alloy; Ti alloy; metal injection molding, additive manufacturing

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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