论文部分内容阅读
采用固体脉冲Nd:YAG激光器研究脉冲电流、切割速度和氮气压力对壁厚为1mm的薄壁不锈钢圆管切割质量的影响。以切缝宽度和切口表面粗糙度作为衡量指标,通过正交试验得出氮气压力是薄壁不锈钢圆管切割质量的主要影响因素,其次是脉冲电流,切割速度对切割质量的影响在三个因素中最小,其最优工艺参数组合为:脉冲电流I=170A,切割速度v=40mm/min,氮气压力P=0.8 MPa。设计实验所用薄壁不锈钢圆管的专用夹具,解决了其采用直接装夹方式时装夹变形和定位精度低的问题。
Solid pulsed Nd: YAG laser was used to study the effects of pulse current, cutting speed and nitrogen pressure on the quality of thin-walled stainless steel pipe with a wall thickness of 1 mm. Taking the kerf width and the incision surface roughness as the measurement indexes, the nitrogen pressure is the main influence factor of the cutting quality of the thin-walled stainless steel tube by orthogonal experiment. The second is the influence of the pulse current and the cutting speed on the cutting quality under three factors In the minimum, the optimum combination of process parameters: pulsed current I = 170A, cutting speed v = 40mm / min, nitrogen pressure P = 0.8 MPa. Design experiments with thin-walled stainless steel tube dedicated fixture, to solve the problem of clip deformation and positioning accuracy when using the direct clamping mode.