挤压铸造工艺在混动车悬置上的应用
Application of Squeeze Casting in Hybrid Car Suspension
李先洲 1黄毅 2马剑2
作者信息
- 1. 广汽传祺汽车有限公司,广州 510405
- 2. 广州金邦液态模锻技术有限公司,广州 511434
- 折叠
摘要
针对重力铸造生产混动车悬置断裂问题,重点研究了挤压铸造技术在生产混动汽车悬置上的应用.在挤压铸造模具设计过程中,为解决挤压销卡死问题,将局部挤压销直径由φ18 mm改为φ16 mm,同时将内浇口改到远离铸件最大应力区15 mm处,用此模具生产的零件破坏力测试均合格,而且安全余量较高.挤压铸造相比金属型重力铸造生产的悬置抗拉强度和屈服强度相近,但伸长率提高了 100％以上,可显著缓解悬置因冲击造成的脆性断裂风险.在轻量化途径中,挤压铸造工艺可替代锻造铝和铸铁件.
Abstract
Aiming at the suspension fracture problem of hybrid car produced by gravity casting,the application of squeezing casting in producing hybrid car was mainly analyzed.During the design process of squeezing casting die,the local squeezing pin diameter was modified from φ18 mm to φ16 mm to solve the problem of squeezing pin stuck,and the ingate was shifted to 15 mm from the maximum stress area of the casting.The parts produced by the mold were qualified with high safety margin.The tensile strength and yield strength of suspension by metal gravity casting and squeezing casting are similar,while the elongation is increased by over 100％,greatly alleviating the risk of brittle frac-ture caused by impact.In the light weight approach,squeeze casting can replace forged aluminum and cast iron parts.
关键词
挤压铸造/混动汽车/悬置断裂Key words
Squeeze Casting/Hybrid Automobile/Suspension Fracture引用本文复制引用
出版年
2024
NETL
NSTL
万方数据