汽车活塞销温-冷复合挤压成形工艺研究  

Study on Warm and Cold Composite Extrusion Forming Process for Automobile Piston Pins

作　　者：李炳[1] 陈伟[1] 李名尧[1] 高俊国[1] 

机构地区：[1]广东科技学院机电工程系,广东东莞523000

出　　处：《铸造技术》2016年第10期2204-2207,共4页Foundry Technology

摘　　要：汽车活塞销的生产除少部分仍然采用切削加工以外,绝大部分是采用双向反挤压工艺。对于高速汽油机或强化柴油机用的活塞销,由于工作负荷大,在使用过程中易产生断裂失效。为了解决上述问题,提出活塞销温-冷挤压复合成形的新构思,并对中间退火工艺进行改进,最终形成活塞销温挤-热处理-冷挤集成制造工艺。The cutting process is still used for production of automobile piston pins,and the vast majority of them is two-way anti extrusion process.It is proved that the piston pins for high speed gasoline engine or diesel engine is easy to break down during using due to large working load.In order to solve the above problems,a new idea with warm and cold composite extrusion forming process was introduced,and the middle annealing process was improved.

关 键 词：活塞销 反挤压 温-冷挤压 

分 类 号：TG376[金属学及工艺—金属压力加工]