摘要
通过对切削区速度场的分析，建立了切削过程的速度模型。根据此模型，导出了二元切削时求解剪切角φ的简化公式。此公式的计算结果比现有的其他公式更接近实际情况。由此得出结论：在切削过程中，剪切角φ的大小不仅取决于刀具前角γｏ，而且和被切材料在剪切前后的速度之比｜ｖ｜／｜ｖｃ｜有较大关系。
By analysing the cutting speed field near the shear zone, a speed model about cutting process is established. According to the model, a simple formula is developed, with that the two dimensional shear angle can be calculated. The results calculated from the formula show that this formula correspond to reality more closely than others. The conclusion is that, under any cutting condition, the shear angle depends on tool orthogonal rake and speed ratio befor and after shearing.
出处
《工具技术》
北大核心
1997年第10期3-6,共4页
Tool Engineering
关键词
切削模型
剪切角
前角
切削速度
切屑速度
cutting model shear angle tool orthogonal rake cutting speed chip speed
