摘要
通过观察大量的切屑根磨片,指出:切削铝合金时的积屑瘤形态为楔形。通过测量,得到了一些切削条件与积屑瘤高度、积屑瘤伸出量、积屑瘤底面长度和积屑瘤前角之间的关系。把切削条件与积屑瘤高度和伸出量的关系曲线与切削温度的关系曲线联系起来观察之后发现:切削速度和走刀量都是通过切削温度而对积屑瘤起作用的,并从中发现积屑瘤伸出量与高度的变化具有一致性。
By observing large numbers of the built-up edge(BUE),We introduce the form of the BUE in aluminium-cutting operation.We generate the relations among cutting conditions,the BUE height,the BUE expansion,the length of the bottom of the BUE,and the front angle of the BUE by means of measure.After observing the relation curve of cutting conditi ons,the BUE height and expansiou,and the relation curve of cutting temperature,we found that cutting speed and cutting length influence the BUE through the temperature,and that the variations of expansion and height of the BUE have consistence.
关键词
铝合金
切削
积屑瘤
形成机理
built-up edge chip-root cutting temperature
