【摘要】 研究了不同辅助气体和工艺参数对激光切割钛合金板的影响，分析了激光切割切缝的断面特征和热影响区特点。试验结果表明，用氩气作辅助气体，切割质量最好；激光功率和切割速度对切缝宽度和热影响区宽度有一定影响；切缝断面可分为形貌不同的两个区，两区之间有明显界线；切缝上表面和下表面热影响区宽度不同，特点为上窄下宽。更多还原

【Abstract】 The effects of different aid-gases and technological parameters on laser cutting of titanium alloy have been investigated. The characters of cut plane and heat affected zone of laser cutting have been analyzed. The experimental results show that the best cutting quality can be obtained when argon is used as an aid-gas. The laser power and cutting speed have of feets on the cutting width and heat affected zone. The cut plane can be divided into two zones which have different appearance. There is a distinguishing boundary between the two zones. The width of heat affected zone on upper surface is narrower than that on lower surface.更多还原