【摘要】 设计一组切削实验,分析使用硬质合金刀具切削航空铝合金时,工艺参数的改变对工件表面质量和加工效率的影响。实验结果表明:对于铝合金切削,刀具几何角度宜采用较大的前角和螺旋角组合以获得较高的加工表面质量;提高切削速度可以提高加工表面质量和加工效率,增大进给量则会降低工件表面质量;环切式刀轨加工效率高,加工表面质量差,一般用于粗铣或半精铣,往复式刀轨加工效率低,加工表面质量好,一般用于精铣。更多还原

【Abstract】 A group of orthogonal experiments are designed to study the influence on workpiece surface quality and processing efficiency by changing process parameters when using carbide tool to cut aluminum-alloy.The cutting experiments show that tool’s geometry should adopt the combination of a greater hook angle and helix angle to obtain a higher surface quality for the aluminum alloy cutting.Increasing cutting speed can improve the surface quality and processing efficiency,while increasing the feed rate will impair the surface quality of workpiece.Ring-cut tool path is generally used for rough milling or semi-precision milling because of the high processing efficiency and poor surface quality,however,reciprocating tool path is commonly used for finish milling because of the inefficient processing and good surface quality.更多还原