摘要
在金属切削过程中,切削区域的冷却和切削温度的恒定对切削质量有着非常重要的影响。对加工过程切削液喷洒之后的温度-流场耦合的研究,减少切削液无效冷却或者过冷带来的影响。以钻削过程中喷嘴-钻头-工件三体为研究对象,建立了数学换热模型,并对整个切削过程进行仿真,找出加工过程中温度较大值点,为后期喷射切削液策略提供位置测量点,提出了一种可以通过测量点温度变化控制切削液使用量通断和流量的策略。
In the metal cutting process,the cooling of the cutting area and the constant cutting temperature have a very important influence on the cutting quality.It is researched that the temperature-flow field coupling after the cutting fluid sprayed in the machining process can reduce the influence of ineffective cooling or super-cooling of the cutting fluid.Taking the nozzle-tool-workpiece as the research object in the drilling process,a mathematical heat transfer model is established,and the entire cutting process is simulated to find out the point of higher temperature during the machining process,which provides a strategy for later cutting fluid spraying.For the position measurement point,a research strategy is proposed that can control the on-off and flow rate of the cutting fluid through the temperature change of the measurement point.
作者
何川
施光林
HE Chuan;SHI Guanglin(School of Mechanical and Power Engineering,Shanghai Jiaotong University,Shanghai 201100,China;Shanghai Smart State Co.,Ltd.,Shanghai 201200,China)
出处
《机械设计与研究》
CSCD
北大核心
2021年第2期92-97,108,共7页
Machine Design And Research
基金
国家04重大科技专项资助(2017ZX04016001)。
关键词
切削液
温度场
流场
冷却换热
耦合仿真
cutting fluid
temperature field
flow field
cooling and heat transfer
coupling simulation
