高速铣削口袋的波纹加工英文文献和中文翻译(14)

菜单

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概述：当以高速铣削模式加工模具的口袋时，由于存在较高数量的切割材料，口袋狭窄区域或拐角处的刀具负载可能急剧增加。本文提出了一种考虑铣削力，加工工具和孔几何的摆线加工方法。首先提出了摆线加工中接合角几何建模的方法。分析铣削力的最大值和平均值;同时分析了摆线加工过程中铣削力曲线与啮合角曲线的对应关系。基于摆线加工的基础实验，获得了铣削力和刀具磨损的结果;然后提出了一种适用于空心摆线铣削加工的控制策略。基于用于摆线铣加工的控制策略，提出了腔摆线铣削加工的两种实现。最后进行腔体加工的比较实验。与进给率调节方法相比，摆线加工可以更好地控制铣削力和拐角处的狭缝和刀具磨损。铣削力和加工振动较小，刀具磨损明显降低。论文网

关键词：高速铣; 摆线加工; 铣削力

1.介绍

高速铣削在提高生产效率，加工精度，表面质量等方面提供了各种优势，已成功应用于模具行业，促进了其快速发展。轮廓平行刀具路径是腔体模具的常见高速铣削方法，其中刀具路径通常基于轮廓偏移和交点计算。然而，角部和狭窄区域（如狭槽）可能容易出现在轮廓之间。如果不采取特殊处理，高速加工时常常会出现以下问题：（1）工具与未切割材料之间的接合角度或接合弧长度大大增加，导致接触材料急剧增加。（2）刀具负载量在拐角或槽处可能高得多，导致刀具疲劳或损伤更大。在高速铣削较硬的材料时，这些问题尤其严重。