摘要
介绍了采用AM60B镁合金和液态挤压铸造技术成形摩托车轮毂,对该铸件的成形工艺进行了试验并加以分析。结果表明,铸型温度为240～280℃,浇注温度为680～700℃,反挤压比压为82～100MPa,保压时间为20～25s、充型速度为0.91m/s时,反挤压铸造AM60B合金的力学性能达到:σb=218～227MPa,硬度(HBS)为66～71,δ5=9.8%～10.7%,αk=(17.5～18.7)×104J/m2。
Reverse squeezing casting AM60B magnesium alloy wheel was conducted.Forming process of the wheel was described.With mould temperature of 240~280 ℃,pouring temperature of 680~700 ℃,reverse squeezing force of 82~100 MPa for 20~25s and filling velocity of 0.91 m/s,mechanical properties of AM60B magnesium alloy wheel can reach 218~227 MPa in tensile strength,66~71 in hardness(HBS)and 9.8%~10.7% in elongation as well as(17.5~18.7)×104 J/m2 in impact toughness,respectively.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2011年第2期145-148,202-203,共4页
Special Casting & Nonferrous Alloys
基金
甘肃省自然科学基金资助项目(ZS031-A25-029-C)
关键词
镁合金
轮毂
液态挤压铸造
Magnesium Alloy,Wheel,Reverse Squeezing Casting
