热力辅助磨料射流切割金属的正交试验  

Orthogonal test of metal cutting by heat assisted abrasive jet

作　　者：张洋凯 王岩[1] 李成 谢淮北[1] 许军[1] ZHANG Yangkai;WANG Yan;LI Cheng;XIE Huaibei;XU Jun(College of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,CHN)

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001

出　　处：《制造技术与机床》2018年第9期115-119,共5页Manufacturing Technology & Machine Tool

基　　金：淮南市科技计划项目(2016A22)

摘　　要：为提高射流切割金属的表面质量,提出一种热力辅助磨料射流切割金属的方法。采用万用电炉加热靶物至既定温度,后用前混合磨料水射流进行切割。选取45号钢为靶体材料,并采用拟水平正交表L_9(3~4)对射流的切割靶距、移动速度、温度、喷嘴压强等4个因素进行三水平试验,以不平度平均高度R_Z作为实验指标。实验结果表明,影响因素主次顺序为温度、喷嘴压强、切割靶距、移动速度,得出优方案为温度31℃、喷嘴压强25 MPa、切割靶距5 mm、移动速度100 mm/min,为进一步分析热力辅助对磨料射流切割机制的影响奠定一定的试验基础。In order to improve the surface quality of jet cutting metal,a method of cutting metal by heat assisted abrasive jet is proposed.Use the universal electric furnace to heat the target to the established temperature,and then use the pre-mixing abrasive water jet for cutting.(45)is used as the target material,and the quasi-horizontal orthogonal table L 9(3 4)is used to carry out the three-level test on the four factors,such as the cutting distance,the moving speed,the temperature and the nozzle pressure,the average height R Z was used as the experimental index.The experimental results show that the order of the influencing factors is temperature,nozzle pressure,cutting target distance and moving speed.The optimum temperature is 31℃,the nozzle pressure is 25 MPa,the cutting target is 5 mm and the moving speed is 100 mm/min.For further analysis of heat to assist in the impact of abrasive jet cutting mechanism to lay a certain experimental basis.

关 键 词：热力辅助 水射流 切割 正交试验 

分 类 号：TH161[机械工程—机械制造及自动化]