摘要
Micro milling is a machining method of high precision and efficiency for micro components and features.In order to study the surface quality of single crystal materials in micro milling,the two-edged cemented carbide tool milling cutter with 0.4 mm diameter was used,and the orthogonal experiment was completed on the micro-milling of single crystal aluminum material.Through the analysis of statistical results,the primary and secondary factor which impacting on surface quality were found as follows:spindle speed,feed rate,milling depth.The ideal combination of optimized process parameters were obtained,when the spindle speed was 36000 r/min,the milling depth was 10μm,the feed rate was 80μm/s,which made the milling surface roughness is 0.782μm and minimal.Single crystal materials removal mechanism were revealed,and the influence of cutting parameters on micro-milling surface were discussed,the reason of tool wear was analyzed.Those provide a certain theoretical and experimental basis for micro milling of single crystal materials.
