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New development of powder metallurgy in automotive industry
Journal of Central South University ( IF 4.4 ) Pub Date : 2020-07-16 , DOI: 10.1007/s11771-020-4394-y
Zhao-qiang Tan , Qing Zhang , Xue-yi Guo , Wei-jiang Zhao , Cheng-shang Zhou , Yong Liu

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.



中文翻译:

汽车工业粉末冶金的新发展

使用粉末冶金(PM)的驱动力主要取决于其近净形能力和性价比。汽车应用是PM行业的主要市场,需要在大规模生产规模中具有具有竞争力的机械或功能性能的零件。随着汽车技术从传统的内燃机汽车向新能源汽车的转变,PM技术在制造和材料开发方面正在发生重大变化。这篇综述概述了用于PM的汽车技术的变化所带来的挑战和机遇。低成本,高性能和轻量化是未来PM材料开发的关键方面。因此,对粉末冶金贫合金钢,铝合金和钛合金材料的研究进行了综述。此外,讨论了应用于新能源汽车的永磁软磁复合材料。然后提出了在汽车工业中进行高级加工的新机会,例如金属注射成型(MIM)和增材制造(AM)。一般而言,汽车行业的变化为粉末冶金带来了足够的发展空间。同时,新兴技术需要更出色的PM材料。铁基零件由于其机械性能和低成本而仍是主要的PM产品。MIM将占领不断增长的高度灵活和复杂零件的市场。AM为快速成型,极大的灵活性和低成本的定制,轻巧的重量和减少的组装量打开了一扇门。指出在汽车行业。一般而言,汽车行业的变化为粉末冶金带来了足够的发展空间。同时,新兴技术需要更出色的PM材料。铁基零件由于其机械性能和低成本而仍是主要的PM产品。MIM将占领不断增长的高度灵活和复杂零件的市场。AM为快速成型,极大的灵活性和低成本的定制,轻巧的重量和减少的组装量打开了一扇门。指出在汽车行业。一般而言,汽车行业的变化为粉末冶金带来了足够的发展空间。同时,新兴技术需要更出色的PM材料。铁基零件由于其机械性能和低成本而仍是主要的PM产品。MIM将占领不断增长的高度灵活和复杂零件的市场。AM为快速成型,极大的灵活性和低成本的定制,轻巧的重量和减少的组装量打开了一扇门。

更新日期:2020-07-16
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