钛合金薄壁件选区激光熔化应力演变的数值模拟
柯林达1,殷杰2(
),朱海红2,彭刚勇2,孙京丽1,陈昌棚2,王国庆3,李中权1,曾晓雁2
),朱海红2,彭刚勇2,孙京丽1,陈昌棚2,王国庆3,李中权1,曾晓雁2
Numerical Simulation of Stress Evolution of Thin-Wall Titanium Parts Fabricated by Selective Laser Melting
KE Linda1,YIN Jie2(),ZHU Haihong2,PENG Gangyong2,SUN Jingli1,CHEN Changpeng2,WANG Guoqing3,LI Zhongquan1,ZENG Xiaoyan2
),ZHU Haihong2,PENG Gangyong2,SUN Jingli1,CHEN Changpeng2,WANG Guoqing3,LI Zhongquan1,ZENG Xiaoyan2
图3. 选区激光熔化(SLM)成形Ti-6Al-4V合金薄壁件在不同激光扫描速率下的温度分布和熔池演变
Fig.3. Temperature distributions and molten pool evolutions in the longitudinal mid-section during selective laser melting(SLM) of Ti-6Al-4V thin-walled parts under different laser scan rates of 1000 mm/s (a), 700 mm/s (b) and 500 mm/s (c) (The colored arrow vectors represent the maximum heat flow directions at the tail of the molten pool boundary)Color online
