磨料水射流在大理石切割中的应用

使用石榴石磨料，在高压磨料水射流数控切割机床上，研究了切割参数（压力、靶距、切割速度）对大理石切割性能（切口宽度、切口锥角、余纹角度）的影响. 结果表明：切割速度越大，余纹角度越大；压力越大余纹角度越小，靶距对余纹角度影响不大，余纹曲线相互之间大体平行，且不规则；锥角与喷嘴切割速度成正比，与系统压力和靶距成反比，即欲得到较小锥角需采用小的速度，大的系统压力，小靶矩；切割缝隙宽度与压力、速度成反比，与靶矩成正比.

The application of an abrasive water jet in cutting marble

The effect of some cutting parameters such as system pressure,stand off distance,traverse speed on the cutting process and cutting quality are examined by using a ultra high pressure abrasive water jet machining technology.The research results show that the striation angle is increased with an enhancement of traverse speed,a reduction in pressure,and stand off distance has little effect on it.The kerf taper is approximately proportional to the traverse speed,but pressure and traverse speed have an inverse effect on it.In order to obtain a smaller kerf taper,lower traverse speed,larger pressure and smaller standoff distance must be selected.Higher pressure and traverse speed will produce a larger kerf width,while a larger stand off distance will make a smaller kerf width.