应用3D打印砂型技术实现一体化铸造大型汽车铝合金底盘  

Application of 3D Printing Sand Mold Technology to Achieve Integrated Casting of Large Automotive Aluminum Alloy Chassis

作　　者：陈耀波 孔德飞 林晓春 袁浩锋 彭昌旺 李家宁 CHEN Yao-bo;KONG De-fei;LIN Xiao-chun;YUAN Hao-feng;PENG Chang-wang;LI Jia-ning(Amsky Foshan 3D Printing Center,Foshan Wenxuan Intelligent Technology Co.,Ltd.,Foshan 528000,Guangdong,China)

机构地区：[1]佛山市稳炫智能科技有限公司爱司凯佛山3D打印中心,广东佛山528000

出　　处：《铸造》2025年第3期298-303,共6页Foundry

摘　　要：传统的汽车底盘上百个甚至上千个零部件通过焊接组合而成,不仅制造工艺复杂,生产效率慢,而且底盘的强度和精度都大打折扣。随着科技技术的不断成熟,以及汽车更新换代的加速,一体化铸造汽车底盘由以前的构想逐步通过新的技术得以实现。本文通过应用3D打印砂型技术,结合传统重力铸造,阐述大型铝合金底盘的铸造成功案例。在本案例中,通过团队集体的努力,解决了大型薄壁件充型难的问题,解决了大型砂型3D打印尺寸精度,砂型成形和砂型合模装配精度等的难题。The traditional automobile chassis comprises hundreds or even thousands of parts through welding.Not only the manufacturing process is complex,the production efficiency is slow,and the strength and accuracy of the chassis are greatly reduced.With the continuous maturity of science and technology and the acceleration of automobile replacement,integrated casting automobile chassis has gradually been realized through new technologies from the previous concept.This article explains the successful casting cases of large aluminum alloy chassis by applying 3D printing sand mold technology and combining it with traditional gravity casting.In this case,through the collective efforts of the team,the problem of difficult filling of large thin-walled parts was solved.Additionally,the issues of dimensional accuracy in large sand mold 3D printing,sand molding,sand mold clamping,and assembly accuracy were also resolved.

关 键 词：3D打印 砂型铸造 汽车底盘 一体化铸造 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG221[金属学及工艺—金属材料]