摘要
分析了汽车发动机曲轴主轴承盖473QB的结构和性能特点,采用粉末冶金材料取代铸铁或球墨铸铁,降低了生产成本。制定了合理的开发方案,确定了材料配方、生产工艺流程,并设计了模具。通过试制进行产品金相分析,改进了粉末冶金工艺和模具结构,成功研制出了符合要求的可承受复杂载荷的粉末冶金曲轴主轴承盖。
The structure and performance characteristics of the main bearing cover 473QB for automotive engine crankshaft are analyzed. Powder metallurgy is used instead of cast iron or spheroidal graphite cast iron. The production cost is reduced. Rational scheme is made which determines the material composition and process flow, and the mould is designed. By testing and metallographic analysis the powder metallurgy process and mould structure are improved. The powder metallurgy main bearing cover for crankshaft which can bear complex load and meet requirement is developed successfully.
出处
《精密成形工程》
2012年第4期49-52,共4页
Journal of Netshape Forming Engineering
基金
江苏省精密制造工程研发中心开放基金资助项目(ZK09-30-01)
泰州职业技术学院2011年重点科研课题(TZY11-01)
关键词
粉末冶金
主轴承盖
材料
工艺
模具
powder metallurgy
main bearing cover
material
process
mould
