TC4钛合金薄壁结构高速切削加工工艺优化研究
通过对典型零件的结构工艺和加工工艺分析，制定加工工序，讨论了刀具选择，并进行了加工仿真。
关键词 钛合金 切削力 单因素试验 正交试验 表面粗糙度 切削参数
毕业设计说明书（论文）外文摘要
Title Studies of TC4 titanium alloy thin-walled structure high-speed cutting processing technology optimization
Abstract
This subject on the basis of understanding of the mechanism of TC4 titanium alloy high-speed cutting through single factor experiments mainly studies the effects of the cutting speed,each tooth feeding and depth of cut on cutting force and surface roughness and find that there is a nonlinear relationship between cutting force and cutting speed,that cutting force increased with per tooth feed rate is volatile,and cutting force is increased cutting depth generally. Though orthogonal test of titanium alloy high-speed cutting force and surface roughness,finds out the influence degrees of the cutting parameters (cutting speed,each tooth feeding and cutting depth ),and the conclusion is that within the experimental range the influence of cutting speed is the most significant,end the other two are not significant.
Through to the typical part's structure technology and processing technology analysis,makes out the processing operation,discusses the selection of tools and conducts the machining simulation.
Keywords Titanium alloy, Cutting force, Single factor experiment, orthogonal test, surface roughness, cutting parameters
目 次
1 绪论 1
1.1 选题的背景及意义 1
1.2 高速切削加工 1
1.3 钛合金材料高速加工研究现状 3
1.4 本课题主要研究的内容 6
2 钛合金切削单因素试验 8
2.1 试验条件 8
2.2 试验方案设计 10
2.3 切削力的试验数据及分析 10
2.4 表面粗糙度的试验数据及分析 14
2.5 本章小结 16
3 钛合金切削正交试验 17
3.1 正交试验 17
3.2 试验方案设计 18
3.3 试验结果数据记录 19
3.3 切削力分析 20
3.5 表面粗糙度分析 25
3.6 本章小结 26
4 典型零件的加工 27
4.1 零件材料特性 27
4.2 零件上盖的结构工艺分析 27
4.3 零件上盖的加工工艺分析 28
4.4 刀具选择 30
4.5 夹具设计 33
4.6 本章小结 34
5 零件上盖高速切削加工仿真 35
5.1 高速加工走刀方式的选择 35
5.2 CAD/CAM—UG6.0仿真软件 35
5.3 零件上盖加工仿真 37
5.4 本章小结 43
结论 44
致谢 45
参考文献 46
1 绪论