【摘要】 以轴向力和扭矩为判据来比较 3种不同涂层刀具在钻削不锈钢时的切削性能 ,试验结果表明 ,以TiN表面多层涂层钻头钻削效果最好 ,TiCN表面多层涂层钻头次之 ,而单层涂层钻头最差 .同时发现不同的涂层刀具钻削不锈钢时产生的轴向力和扭矩值亦随着进给速度的增加而增大 ,但在固定进给速度 ( 0 1 2mm/r)改变转速时 ,3种不同涂层钻头的轴向力与扭矩在转速为 1 4r/s时最小 ,随着转速增加到 2 0r/s时 ,轴向力和扭矩增至最大 ,而当转速继续增加到 2 6r/s时 ,则轴向力与扭矩反而开始下降更多还原

【Abstract】 Regard the force in the direction of axis and the torque as criteria to compare the performance of drilling the stainless with three type coatings on the high speed steel drills. Experimental investigation reveals that TiN coating on the drill with multi_layer is the best and the TiN coating on the drill with single_layer is the worst. Meanwhile,it has found that the force in the direction of axis and the torque are increased with the adding of the feed, but when fix the feed(0 12?mm/r) and change the rotate speed of the principal axis ,the force and the torque are minimal at the rotate speed is 1 4?r/s,the two parameters are maximal when the speed is increased to 2 0?r/s,but the two parameters are decreased when the speed is up to 2 6?r/s.更多还原