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我们在承揽外活加工时,遇到了在不锈钢薄板上大量钻孔的问题。这种不锈钢板用作某厂下卸料分离机中分离筒的筒壁。这个圆筒的直径为1.2m,采用不锈钢板的厚度为δ=10mm。工作时圆筒的最高转速为750r/min,筒壁最外圈的线速度可达47.1m/s。据用户介绍,由于高速旋转,在机加工留下的尖角、毛刺及刀痕处会产生高度应力集中,随之产生龟裂,致使钢板在龟裂处
When we dealt with external processing, we encountered a large number of holes in the stainless steel sheet drilling problems. This stainless steel plate used as a discharge separator in a factory in the cylinder wall tube. The diameter of this cylinder is 1.2m, the thickness of the stainless steel plate is δ = 10mm. Working cylinder maximum speed 750r / min, the outer wall of the cylinder wall line speed up to 47.1m / s. According to user introduction, due to high-speed rotation, left in the machined sharp corners, burrs and knife marks will have a high degree of stress concentration, resulting in cracks, resulting in the crack in the steel