摘要
锯切热对锯片上金刚石的非正常失效有着重要的影响。以花岗石锯切为研究对象,在较宽的工艺参数范围内,研究工艺参数以及冷却液对锯切热量分配比例的影响。实验中采用功率计和薄片热电偶分别测量功率和温度信号,并采用理论脉动温度曲线与实验温度曲线进行比较拟合,得出锯切热量分配比例。研究表明:随各工艺参数增大,冷却液的冷却效果越来越差;干切时传入工件的热量分配比例约为7.1%～16.8%,湿切时传入工件的热量分配比例约为1.7%～8.2%。
Abnormal failure of diamond in sawing of granite is significantly related with sawing heat.The influence of sawing parameters and coolant on the energy partition is studied in a wide range of parameters in sawing of granite.The temperature and power signals are obtained by using ammeter and foil thermocouples.Through matching the theoretical fluctuated temperature carve with the measured temperature carve,the energy partition to the workpiece are calculated.It is found that as the process parameters increase,the effect of coolant decreases,and that the energy partition to the workpiece is about 7.1%~16.8% in dry sawing and about 1.7%~8.2% in wet sawing.
出处
《金刚石与磨料磨具工程》
CAS
2013年第2期39-42,共4页
Diamond & Abrasives Engineering
基金
长江学者和创新团队发展计划(IRT1063)
华侨大学科研基金资助项目(10BS211)
关键词
热量分配比例
脉动温度
锯切
花岗石
energy partition
fluctuated temperature
sawing
granite
