In order to realize dressing of fine diamond grinding wheel effectively, removal behavior of metal bond for dry and wet coolants is investigated. 为有效地实现微细金刚石砂轮的修锐,建立单脉冲电火花放电去除加工的试验系统,研究金属结合剂的气中和液中电火花放电去除机理。
According to material removal depth of the workpiece surface and the theoretical analysis, Material Removal Rate and surface roughness of the workpiece are analyzed. The workpiece material parameters, bond properties of abrasive tools surface and processing technical parameters are all discussed. 在此基础上,结合在运动学分析,对材料去除率和加工工件的表面粗糙度进行了仿真分析,讨论了工件材料特性参数,磨具表层结合剂特性参数和加工工艺参数对加工性能的影响。
Under traditional dressing mode, material removal mechanism of dense type grinding wheel is mainly brittle fracture of grain and bond rupture, while under the ultrasonic vibration dressing mode, the material removal mechanism is mainly ductile cutting of bond materials, abrasion and fracture of grains. 普通修整方式下密实型结合剂砂轮表面的材料去除机理主要以磨粒的脆性断裂和结合剂断裂为主,而超声振动修整方式下,材料去除机理以结合剂的延性去除以及磨粒的磨损和微破碎为主。