PCD磨棒磨削参数对C_(f)/SiC磨削质量影响的试验研究

Experimental Study on Effect of PCD Rod Grinding Parameters on Grinding Quality of C_(f)/SiC Composites

以3D C_(f)/SiC复合材料为研究对象,利用钎焊聚晶金刚石磨棒在不同的磨削加工参数下,开展该材料的磨削加工试验,研究不同加工参数下磨削力、加工表面质量以及表面粗糙度的变化规律。试验研究结果表明:磨削力主要受磨削宽度影响,且随着磨削宽度的增大而增大;表面粗糙度主要受磨削深度和主轴转速影响,且随着磨削深度的增大而增大,随主轴转速的增大而减小。当磨削加工参数为主轴转速2500 r/min、进给速度100 mm/min、磨削深度1 mm、磨削宽度2 mm时,磨削过程中的磨削力小、材料去除率高以及加工表面质量较优。

With 3D C_(f)/SiC composite material as the research object,the grinding test of the material is carried out by using polycrystalline diamond grinding rod under different grinding parameters,and the change rules of grinding force,processing surface quality and surface roughness size are studied under different processing parameters.The test results show that the grinding force is mainly affected by the grinding width,and increases along with the increase of grinding width,while the surface roughness is mostly affected by the grinding depth and spindle speed,increases with the increase of grinding depth,and decreases with the increase of spindle speed.When the grinding parameters select spindle speed at 2500 r/min and feed speed at 100 mm/min with grinding depth as 1 mm and grinding width as 2 mm,grinding force in the grinding process is small,material removal rate is high and processing surface quality becomes better.