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[工程科技]金刚石线锯切割.pdf

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[工程科技]金刚石线锯切割.pdf

i摘要Hardin,CraigWilliam.固着磨料金刚石线锯切割单晶SiC片和木材(Dr.AlbertShih领导)研究固着磨料金刚石线切割工艺参数的影响,研究金刚石线切割单晶SiC片过程中线速度、摆动频率和进给速度对切削力和表面粗糙度的影响,还研究了摆动和环形线切割加工木材以及进给速度、线速度、冷却液和纹理方向对切削力和表面粗糙度的影响。切削实验设计使用3种不同的线切割设备第一个实验使用一台DiamondWireTechnologyMillennium线轮线轮式摆动金刚石线切割设备来加工单晶SiC片接下来的实验使用一台Murg环形线切割机器和一台WellDiamondWireSaws的Model7243摆动线切割设备来加工松木和橡木。记录切削力和信号处理技术的一个数据采集系统用来去除噪声。金刚石线运行良好,然后所有材料的加工表面检查表面粗糙度。一台扫描电子显微镜用来检查SiC。最后,讨论了结果和这个领域未来研究的方向。ii固着磨料金刚石线锯切割单晶SiC片和木材CraigWilliamHardiniii术语...............................................................................................................................v1.简介........................................................................................................................11.1固着磨料金刚石线锯.....................................................................................21.2金刚石线加工的优势.....................................................................................31.2.1薄截口...............................................................................................31.2.2复杂形状切割.......................................................................................41.3文献综述.........................................................................................................52.实验设计和设置....................................................................................................52.1设备使用.........................................................................................................52.1.1金刚石线技术金刚石线切割...............................................................52.1.2WellDiamondWire环形线切割..........................................................72.1.3WellDiamondWire摆动线切割..........................................................82.1.4金刚石线...............................................................................................92.1.5测力仪...................................................................................................92.1.6数据采集.............................................................................................102.1.7木材实验的推进机构.........................................................................102.1.8扫描电子显微镜.................................................................................102.1.9表面粗糙度测量.................................................................................102.2使用材料.......................................................................................................112.3实验设计.......................................................................................................122.3.1单晶SiC实验设计..............................................................................122.3.2摆动切割实验设计.............................................................................152.3.3环形线切割实验设计.........................................................................173.线切割加工力学..................................................................................................183.1摇摆运动学...................................................................................................183.2线切削力平衡...............................................................................................204.单晶SiC切割实验Ⅰ结果..................................................................................214.1数据采集.......................................................................................................214.1.1切向力.................................................................................................224.1.2法向力.................................................................................................234.2切削力和表面粗糙度结果...........................................................................264.3扫描电子显微镜表面特征...........................................................................285.单晶SiC加工实验Ⅱ结果..................................................................................325.1数据采集.......................................................................................................325.2切削力和表面粗糙度结果...........................................................................325.3扫描电子显微镜分析...................................................................................346.摆动切割木材结果..............................................................................................346.1数据采集.......................................................................................................346.1.1切向力.................................................................................................356.1.2法向力.................................................................................................376.2切削力和表面粗糙度结果...........................................................................376.2.1基准结果.............................................................................................386.2.2导轮测试结果.....................................................................................396.2.3高进给速度测试结果.........................................................................39iv7.环形切割木材结果..............................................................................................407.1数据采集.......................................................................................................407.2切削力和表面粗糙度结果...........................................................................407.2.1基础结果.............................................................................................427.2.2冷却液测试结果.................................................................................437.2.3进给速度测试.....................................................................................438.总结......................................................................................................................44

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