CSiC复合材料激光超声复合切削螺纹缺陷控制及性能分析.docx
CSiC复合材料激光超声复合切削螺纹缺陷控制及性能分析
目录
内容概括................................................3
1.1研究背景与意义.........................................4
1.2国内外研究现状.........................................5
1.2.1CSiC复合材料加工技术................................6
1.2.2激光超声检测技术.....................................8
1.2.3螺纹加工缺陷控制.....................................9
1.3研究内容与目标........................................11
1.4研究方法与技术路线....................................12
CSiC复合材料及激光超声复合切削螺纹工艺................13
2.1CSiC复合材料性能特点.................................14
2.2激光超声复合切削原理..................................17
2.2.1激光加工技术........................................18
2.2.2超声波振动辅助......................................19
2.3螺纹切削工艺参数优化..................................21
2.3.1切削速度............................................23
2.3.2进给率..............................................24
2.3.3切削深度............................................25
螺纹缺陷类型及形成机理分析.............................27
3.1常见螺纹缺陷类型......................................27
3.1.1螺距偏差............................................28
3.1.2半径误差............................................29
3.1.3表面粗糙度..........................................30
3.1.4其他缺陷............................................32
3.2缺陷形成机理探讨......................................32
3.2.1材料去除不均匀......................................33
3.2.2振动影响............................................34
3.2.3刀具磨损............................................36
基于激光超声的螺纹缺陷检测方法.........................37
4.1激光超声检测原理......................................37
4.2检测系统搭建..........................................38
4.2.1激光发射装置........................................40
4.2.2超声波接收装置......................................41
4.2.3信号处理单元........................................43
4.3缺陷识别与定位技术....................................44
螺纹缺陷控制策略研究...................................45
5.1工艺参数对缺陷的影响分析..............................46
5.2基于激光超声的在线缺陷监测............................47
5.3缺陷控