激光束空域形态对激光定向能量沉积<strong>316L</strong>不锈钢热输运影响的数值模拟

激光束空域形态对激光定向能量沉积316L不锈钢热输运影响的数值模拟

任松, 吴家柱, 张屹, 张大斌, 曹阳, 尹存宏

Numerical Simulation on Effects of Spatial Laser Beam Profiles on Heat Transport During Laser Directed Energy Deposition of 316L Stainless Steel

REN Song, WU Jiazhu, ZHANG Yi, ZHANG Dabin, CAO Yang, YIN Cunhong

表4 超Gaussian形态(SGP1，K = 4.2)作用下不同功率时的熔池形貌特征参数

Table 4 Characteristic parameters of molten pool at laser powers of 600, 700, and 800 W under the action of SGP1

Laser power / W	Result	Deposition track width / mm	Deposition depth / mm	Deposition height / mm
600	Experiment	2129.08	281.86	194.90
	Numerical simulation	2102.37	256.37	173.56
	Relative error	1.25%	9.04%	10.95%
700	Experiment	2365.13	356.83	218.89
	Numerical simulation	2239.64	330.61	210.52
	Relative error	5.33%	7.35%	3.82%
800	Experiment	2509.46	428.59	248.83
	Numerical simulation	2544.80	382.74	234.36
	Relative error	1.39%	10.70%	5.82%