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针对于常用的Q235钢,应用高压磨料水射流切割装置,分别试验研究了泵压、横移速度、靶距以及入射角度等工艺参数对切割深度的影响,建立了基于实测数据的经验数学模型。试验结果表明,切割深度随泵压增大呈现线性增大,随横移速度增大而减小。靶距在4 mm左右,喷嘴横移方向与喷嘴出口射流夹角为105°左右,使得切割深度最大。通过比较模型计算切深与实测切深,得出数学模型对预测切深具有一定的可靠性。
Aiming at the commonly used Q235 steel, the influence of process parameters such as pump pressure, traverse speed, target distance and incident angle on the cutting depth was experimentally studied by using high pressure abrasive water jet cutting device. The empirical mathematical model based on measured data was established. The experimental results show that the cutting depth increases linearly with the increase of pump pressure and decreases with the increase of traverse speed. The target distance is about 4 mm, the angle between the nozzle traversing direction and the nozzle exit jet is about 105 °, so that the cutting depth is the maximum. Comparing the model with the calculated depth of cut and the measured depth of cut, it is concluded that the mathematical model has some reliability to the predicted depth of cut.