论文部分内容阅读
工业技术的发展,使得对零件表面质量的要求越来越高。对于钢类材料的精加工,特别是拉削和齿轮切削等,由于在生产常用的切削条件下,积屑瘤难以避免,导致零件的已加工表面质量常常难以令人满意。对于由主切削刃形成已加工表面的加工工艺,积屑瘤是影响表面粗糙度的主要因素。为了降低工件的表面粗糙度,人们往往着眼于合理选择刀具几何角度,切削用量和切削液,但是由于积屑瘤是被切削材料在刀具前刀面上冷焊粘结形成的,所以,要想有效地降低已加工表面粗糙度,必须从根本上改善前刀面上刀具与切屑之间的摩擦粘结状况,抑制或消除积屑
The development of industrial technology, making the surface quality requirements of parts getting higher and higher. For the finishing of steel materials, especially broaching and gear cutting, it is often unsatisfactory because the machined surface quality of the part is often unsatisfactory due to the unavoidable occurrence of built-up edge defects in the production of commonly used cutting conditions. For the machining process that forms the machined surface from the major cutting edge, Bicarbon eruptions are a major factor affecting the surface roughness. In order to reduce the surface roughness of the workpiece, people often focus on the reasonable choice of tool geometry, cutting dosage and cutting fluid, but because the built-up edge is cut by the cutting material in the tool rake face cold-formed adhesive bonding, Effectively reduce the surface roughness has been machined, we must fundamentally improve the rake surface between the tool and the chip friction bonding conditions, inhibition or elimination of debris