金刚石框架锯锯切研究(1)—锯切加工运动学分析

Study on the Frame Sawing with Diamond Blades(I) - Kinematic Analysis

金刚石水平式框架锯锯切是在大面积大理石板材加工中占主导地位的加工工艺。在金刚石框架锯锯切中的加工运动学锯切破碎过程、锯切力、锯切结块磨损、锯条张紧力调整、锯切可加工性评定等问题 ,均是实现高效率低成本地加工出高质量石材大板的关键。本文首先阐述了金刚石框架锯锯切过程中的运动学问题 ,提出了单颗粒金刚石在锯切加工过程中同石材接触的运动模型 ,以及结块和锯条平均切削厚度的概念 ;分析了金刚石结块同石材侧表面的接触面积和金刚石结块顶面同石材接触面积的变化特征 。

The frame sawing movement consists of horizontal cutting and vertical feed. The equations to describe this process are given. The models of cutting depth and cutting movement trace of single diamond grit, single segment and total blade are presented. The contact area between segment and stone is analyzed. Some factors that affect the contact area are also discussed.