论文部分内容阅读
用硬质合金刀具高速车削丝杠,不仅生产效率高,而且在刀具几何参数、切削用量和辅助措施(如使用跟刀架等)的合理选择下,能保证工件具有一定的精度和光洁度。但是,在高速挑扣过程中,由于受到工件截形的限制,刀具前角较小,吃刀深度较大,则在刀具挤压下,螺纹齿顶转角处会产生较大的毛刺(以下称为齿顶毛刺)。对刚性较强的短丝杠,一般不加跟刀架,可在精车前增加一次走刀,将毛刺去除。对刚性较差的长丝杠,齿顶毛刺的存在,
High-speed turning with carbide cutting tools, not only the production of high efficiency, but also in the geometric parameters of the cutter, the amount of cutting and auxiliary measures (such as the use of the knife holder, etc.) the reasonable choice, to ensure that the workpiece with a certain accuracy and finish. However, during the high-speed pick-up process, due to the restriction of the workpiece truncation, the smaller tool rake angle and larger depth of cut, the larger burr will be generated at the corner of the screw top under the squeeze of the cutter For tooth top burr). On the more rigid short screw, generally do not increase with the turret, you can increase in the fine car before a walk, the glitch removed. On the poor rigidity of the screw, the presence of tooth top burr,