关键词: 金属纤维, 刨削, 多齿刀具, 切削参数

Abstract:

Stable-quality fine metal fibers with a length of 10 -22 mm and a diameter of less than 100 μm were fabricated by planning on a common planer with a multi-tooth tool. Then, by comprehensively analyzing the planing process and by investigating the effects of cutting parameters on the planing process, reasonable processing parameters were determined. The results show that both the tool parameters and the cutting parameters greatly influence the quality of metal fibers in the planing process, that a larger rake angle and an appropriate clearance angle of the tool are both favourable to the fabrication of metal fibers, that the back engagement has the greatest influence on the forming process, while the cutting speed and the feed rate have no obvious effect on the forming process, and that, at a back engagement of 0. 04 - 0.06 mm, a cutting speed of 30 - 60 m/min and a feed rate of 0. 72 - 1.44 mm/r, fine copper fibers with stable quality can be fabricated using the muhi-tooth tool with a rake angle of 30°, a clearance angle of 8°, a tooth pitch of 0. 3 mm and a tooth height of 0. 2 mm.

Key words: metal fiber, planing, multi-tooth tool, cutting parameter