硬质合金激光铣削的微观机制和表面形貌研究

【作者】 袁根福； 曾晓雁；

【机构】 安徽建筑工业学院激光加工联合研究中心； 激光技术国家重点实验室华中科技大学；

【摘要】 利用不同功率密度激光对硬质合金进行铣削试验,观察和分析其铣削面形貌,并进行激光铣削微观机制分析。结果表明:硬质合金在较低激光功率密度条件下铣削,铣削面存在大量熔渣,而熔渣大小与所用激光单脉冲能量的大小有关;当利用较高激光功率密度对其进行铣削,其材料去除机制以块状剥落为主。更多还原

【Abstract】 Milling experiments with different power density lasers on hard alloy were carried out,so as to observe the milling surface appearance and to analyse the laser milling microcosmic mechanism.The results showed that a lot of sinters would remain on the milling surface under lower laser power density and the sizes of the sinters were correlative with laser single pulse energy,whenas the material would be removed mainly in the form of pieces under higher laser power density.更多还原