摘要
汽车零部件的轻量化设计与制造是助力整车轻量化、实现绿色制造和降低汽车碳排放的重要途径。以汽车变速器轴为对象,对其轻量化设计与高效精密制造进行了研究,基于Abaqus静力分析研究了相同静扭载荷下变速器轴不同空心轻量化设计时的应力分布,基于FORGE探究了变速器轴旋转锻造缩径过程的变形特征,实现了对设计管料的旋锻工艺验证。结果表明:空心设计能够很好地实现变速器轴的轻量化,结合变壁厚设计能够改善应力分布、提升轻量化水平至50%左右;使用旋转锻造工艺能够实现变速器轴的缩径和壁厚增厚,保证良好的精度,同时将成形损伤累积和成形力控制在较低水平。
The lightweight design and manufacturing of automobile parts is an important way to help vehicle lightweight,realize green manufacturing and reduce carbon emissions.Therefore,for the automobile transmission shaft,its lightweight design and efficient precision manufacturing were studied,and based on Abaqus static analysis,the stress distribution of transmission shaft with different hollow lightweight designs under the same static torsional load was studied.Furthermore,based on FORGE,the deformation characteristics of transmission shaft during the rotary swaging diameter reduction process were explored,and the rotary swaging process verification on the designed tube material was realized.The results show that the hollow design can well realize the lightweight of transmission shaft,and combined with the variable wall thickness design can improve the stress distribution and increase the lightweight level to about 50%.The use of rotary swaging process can reduce the diameter and thicken the wall thickness of transmission shaft,ensuring good accuracy while keeping forming damage accumulation and forming forces controlled at a low level.
作者
张琦
田天泰
张毓
韩宾
Zhang Qi;Tian Tiantai;Zhang Yu;Han Bin(School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
出处
《锻压技术》
CAS
CSCD
北大核心
2023年第5期266-274,共9页
Forging & Stamping Technology
基金
国家自然科学基金资助项目(52275375)
陕西省重点研发计划(2021GXLH-Z-037)。
关键词
空心设计
轻量化
汽车变速器轴
旋转锻造
缩径
变壁厚
hollow design
lightweight
automobile transmission shaft
rotary swaging
diameter reduction
variable wall thickness
作者简介
张琦(1978-),男,博士,教授,E-mail:henryzhang@mail.xjtu.edu.cn。
