2A12铝合金炮弹风帽挤压铸造工艺及模具设计  

Squeeze Casting Process and Mould Design for 2A12 Aluminum Alloy Shell

作　　者：施文鹏 王家宣[1,2,3] 胡洪 李振兴 龚伟平 Shi Wenpeng;Wang Jiaxuan;Hu Hong;Li ZhenXing;Gong Weiping(School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University;Jiangxi Province Aluminum Engineering Research Center;Jiangxi Eagle Aluminum Limited by Share Ltd.)

机构地区：[1]南昌航空大学航空制造工程学院 [2]江西省铝型材工程技术研究中心 [3]江西雄鹰铝业股份有限公司

出　　处：《特种铸造及有色合金》2018年第6期629-631,共3页Special Casting & Nonferrous Alloys

摘　　要：对2A12铝合金炮弹风帽采用挤压铸造工艺进行试验,介绍了炮弹风帽精化毛坯和模具的设计重点。关键在于使金属液能平稳充型,为此对浇注温度、加压速度、保压时间、模具预热温度等工艺参数进行了调整。结果表明,当模具预热温度为350℃,浇注温度为690~700℃,加压速度为10mm/s,保压时间为10s时,铸件尺寸及性能达到设计要求。The 2 A12 aluminum alloy shell was produced by squeeze casting process,and the key points of the design of shells and mould were described.The key point of the process is to realize the liquid metal smoothly filling,so specific pressure,mould preheating temperature and other process parameters were adjusted.The results show that with the mould preheating temperature of 350 ℃,the pouring temperature of 690-700 ℃and the pressing speed of 10 mm/s as well as the dwelling time of 10 s,the size and performance of squeezing castings meet the design requirements.

关 键 词：2A12铝合金 炮弹风帽 挤压铸造 模具设计 

分 类 号：TG249.2[金属学及工艺—铸造] TG146.21[一般工业技术—材料科学与工程]