高性能汽车发动机曲轴加工工艺及结构改进研究  

Research on machining technology and structure improvement of crankshaft for high performance automobile engine

作　　者：吴正伟[1] Wu Zhengwei(Kunming Yunnei Power Co.,Ltd.,Yunnan Kunming,650200,China)

机构地区：[1]昆明云内动力股份有限公司,云南昆明650200

出　　处：《机械设计与制造工程》2023年第5期17-20,共4页Machine Design and Manufacturing Engineering

摘　　要：为达到高性能汽车发动机曲轴由国Ⅴ升级为国Ⅵ的技术要求,降低投入和生产成本、提高生产效率,应用过程FMEA等工具/方法对存在的问题进行了分析,提出了对现有产线改进的措施并通过工艺试验加以实施。基于强度计算结果提出结构改进建议,采用CAE软件对改进结构的曲轴进行模拟验证,并通过疲劳试验对改进工艺和结构后的曲轴进行确认,结果显示,改进后的曲轴质量达到了设计要求。In order to meet the technical requirements of upgrading the crankshaft of high performance automobile engine fromⅤtoⅥ,reduce input and production costs and improve production efficiency,it uses PFMEA and other tools/method to analyze the existing problem,describes the measures to improve the existing production line.The structural improvement suggestions are put forward by strength calculation and other methods.The crankshaft with improved structure is simulated and verified by CAE software,and the crankshaft with improved process and structure is confirmed by fatigue test.Finally,the product quality exceedes the design requirements.

关 键 词：曲轴 加工工艺 结构 改进 

分 类 号：TH16[机械工程—机械制造及自动化] U462.1[机械工程—车辆工程] N94[交通运输工程—载运工具运用工程]