1、安徽工程大学毕业设计（论文） I 十字轴锻造成形工艺研究及模具设计 摘 要 近几年，随着经济和汽车行业的快速发展，十字轴作为传动系统的重要组成部分，应用越来越广泛，地位也越来越重要。 本文主要以十字轴为研究对象，十字轴是汽车底盘中的一个十分重要的传力零件，产品质量要求高，形状复杂。以目前国内普遍应用的热锻工艺为研究前提，运用 UG、DEFORM-3D 软件系统的研究十字轴的成形过程和模具设计。 首先采用 UG 或 Pro/E 三维造型软件对十字轴进行三维实体化造型。 利用DEFORM-3D 有限元模拟软件对十字轴的成形过程进行模拟。分析应力状态和载荷 -行程曲线。基于模拟结果，分析十字轴预锻成
2、形过程中所出现的问题，提出模具设计的改进建议。 从数学模型上给出了指导，得出了优化的工艺参数，设计出合理的模具型腔。 利用 UG 的实体造型功能建立十字轴的三维模型。 关键词 ： 十字轴；数值模拟；预锻变形；有限元；成形工艺 左渭：十字轴锻造成形工艺研究及模具设计 II Study on Forming Process and Die Design for Crossing Shaft ABSTRACT In recent years, with the development of economy and automotive industry, as the main basis of m
3、echanical parts, the cross shaft of an ever-increasing status is also becoming increasingly important. This article mainly takes cross shaft as the research object. The cross shaft is automobile chassis of a very important force transmission parts, products of high quality requirements, complex shap
4、e.UG, DEFORM-3D as a platform, and has done some research on mould design and FEM simulation, on the base of forge hot process which is widely used in local plant. First, using UG or Pro/E three-dimensional modeling software for 3D modeling of the cross shaft.The finite element simulation software D
5、EFORM-3D is used to simulate the forming process of the cross shaft. And analysis the stress distribution and the metal load-trip curve. According to the result of the simulation, the problem in the Pre-forging has been analysed with some instructive suggestions for die designing put forward. Guidance is given from the mathematical model, then the optimized parameters, design of mould cavity and reasonable. A three-dimensional model of cross shaft using a solid modeling function of UG. Key Words: cross shaft； numerical simulation； Pre-forging process； finite element method； forming process
