驱动桥壳整体复合胀形工艺及液压机系统开发

Development of the integral compound bulging forming process and hydraulic press system for driving axle housing

在介绍现有驱动桥壳成形技术基础上,提出了一种新的驱动桥壳整体复合胀形工艺。针对与该工艺相匹配的核心工序,整体复合胀形的变形过程,采用有限元法进行了验证分析,获得了开槽管坯胀形温度为600℃时,胀形过程最大应力值达到243MPa,能够满足驱动桥壳成形需求。结合胀形成形的功能需求和变形分析数据,通过集成中频加热炉、传送带、机械手等辅助装备,开发出驱动桥壳整体复合胀形液压机系统。可在同一平台上实现复杂的工艺过程,可实现不同型号驱动桥壳制造。

Based on the analysis of the existing forming technology of driving axle housing,a new integral compound bulging process of driving axle housing is proposed.Aiming at the deformation process of integral compound bulging,which is the core process matched with this process,the finite element method is used to verify and analyze the deformation process.It is obtained that the bulging process of slotted tube blank is the most when the bulging temperature is 600 ℃.The large stress value reaches 243 MPa,which can meet the forming requirement of driving axle housing.According to the function requirement and deformation analysis data of bulging forming,the hydraulic press system of driving axle housing integral compound bulging was developed by integrating auxiliary equipment such as intermediate frequency heating furnace,conveyor belt,manipulator and so on.Complex process can be realized on the same platform,and different types of driving axle housing can be manufactured.