柴油机关键零件激光表面强化工艺及其实验装置方案设计+CAD图纸
毕业论文关键字：柴油机关键零件 激光表面强化 实验装置 方案设计
Abstract In this paper, for the purpose of enterprise applications and seeking more effective, more economical and more convenient process scheme to improve engine parts performance and service life, directing to the structure and failure modes of diesel engine key parts, technology like laser surface hardening, alloying, cladding etc. is applied to strengthen the parts’ surface. Through accessing to domestic and foreign literature, the characteristics, application areas, maturity and defects of laser surface hardening technology is collated. Surface strengthening (repairing) process for engine key parts like laser surface hardening for cylinder inner surface, laser surface cladding for rod crack repair, laser surface alloying for piston ring groove, laser surface cladding for piston crown, laser surface hardening for crankshaft journal and the journal fillet, laser surface cladding for crankshaft repair is formulated. Through the investigation of laser equipment and laser surface hardening equipment manufacturers, the selection of laser surface hardening laboratory equipment is decided. Through the field survey to workshops and laboratories, the preliminary plan for the layout of laser surface hardening laboratory equipment is made.
Keywords: Key parts of diesel engine, Laser surface strengthening, Experimental apparatus，Program design
目录
第一章绪论1
1.1研究背景.1
1.2激光表面改性的发展现状1
1.2.1国外的发展现状1
1.2.2国内的发展现状..2
1.3激光表面改性的加工特点.3
1.4激光表面改性工程化应用面临的问题4
1.5本文的主要内容.4
第二章激光表面改性典型技术简介5
2.1激光表面淬火.5
2.2激光表面熔覆.7
2.3激光表面熔凝..10
2.4激光表面合金化.11
2.5激光冲击硬化..12
2.6激光表面非晶化.13
2.7几种激光表面改性技术的参数..14
第三章激光表面改性技术在柴油机零件上的应用..15
3.1概述.15
3.2汽缸套的制造材料和激光强化工艺设计16
3.2.1汽缸套的制造材料17
3.2.2汽缸套的激光强化工艺设计17
3.3连杆的制造材料和激光强化工艺设计.21
3.3.1连杆的制造材料.22
3.3.2连杆的激光强化工艺设计24
3.4活塞的制造材料和激光强化工艺设计.26
3.4.1活塞的制造材料.27
3.4.2活塞的激光强化工艺设计28
3.5曲轴的制造材料和激光强化工艺..29
3.5.1曲轴的制造材料.30
3.5.2曲轴的激光强化工艺设计31
第四章实验室仪器设备选型33
4.1机床的选择33
4.2激光器的选择..34
4.2.1激光器种类及特性..35
4.2.2激光器的选择方案..37