中国激光, 2017, 44 (1): 0102013, 网络出版: 2017-01-10
带热障涂层的高温合金飞秒激光旋切打孔 下载: 1465次
Trepanning of Supper-Alloy with Thermal Barrier Coating Using Femtosecond Laser
图 & 表
图 2. 不同参数下加工得到的结果。(a)孔入口直径;(b)盲孔深度
Fig. 2. Results of trepanning with different parameters. (a) Entrance diameter; (b) depth of blind hole
图 4. 焦距为1000 mm飞秒激光旋切打孔结果。(a)孔入口图;(b)截面图;(c)入口附近孔壁界面,未发现附着残渣及重铸层;(d)在涂覆层与连接层、连接层与高温合金基体之间的连接界面均未发现裂纹拓展
Fig. 4. Machining results of hole drilled by femtosecond laser with focal length of 1000 mm. (a) Entrance; (b) cross section; (c) cross section of entrance, no spatter and recast layer found; (d) interface between ceramic and bonding layer, interface between bonding layer and metal, no crack extending found
图 5. 低速单层旋切,不同次数加工得到的入口形貌。(a)加工3次;(b)加工5次;(c)加工6次;(d)加工7次
Fig. 5. Entrance holes under single layer trepanning with a low speed and different trepanning times. (a) 3 times; (b) 5 times; (c) 6 times; (d) 7 times
张学谦, 邢松龄, 刘磊, 李勇, 佟浩, 邹贵生. 带热障涂层的高温合金飞秒激光旋切打孔[J]. 中国激光, 2017, 44(1): 0102013. Zhang Xueqian, Xing Songling, Liu Lei, Li Yong, Tong Hao, Zou Guisheng. Trepanning of Supper-Alloy with Thermal Barrier Coating Using Femtosecond Laser[J]. Chinese Journal of Lasers, 2017, 44(1): 0102013.