Parametric Study of Fe Element Distribution in Laser Conduction Welding of Ni/304SS

Zixun Li; Xiuli He; Gang Yu; Chongxin Tian; Zhiyong Li; Shaoxia Li

doi:10.3788/CJL202148.1802013

Chinese Journal of Lasers, Volume. 48, Issue 18, 1802013(2021)

Parametric Study of Fe Element Distribution in Laser Conduction Welding of Ni/304SS

Zixun Li^1,3, Xiuli He^1,3、*, Gang Yu^1,2,3、**, Chongxin Tian^1,3, Zhiyong Li^1,3, and Shaoxia Li^1,3

Author Affiliations

¹Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

²Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China

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Abstract Get PDF(in Chinese)

Figures & Tables(15)

Fig. 1. Schematic diagram of the laser welding of dissimilar metals

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Fig. 2. Schematic diagram of the calculation model

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Fig. 3. Cross-section of the molten pool. (a) Simulation result; (b) experimental result

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Fig. 4. Calculation and experimental results of the element distribution

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Fig. 5. Evolution of the molten pool. (a) Geometry profile and the distribution of Fe elements on the top surface; (b) geometric dimensions

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Fig. 6. Distribution of Fe elements and liquid velocity on the cross section of the molten pool. (a) Relative position of the cross section; (b) plane 1; (c) plane 2; (d) plane 3

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Fig. 7. Orthogonal simulation results of the process parameter correlation

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$Mass fraction of Fe element in the longitudinal section. (a) Vscan=10 mm/s; (b) Vscan=20 mm/s; (c) Vscan=30 mm/s$

Fig. 8. Mass fraction of Fe element in the longitudinal section. (a) V_scan=10 mm/s; (b) V_scan=20 mm/s; (c) V_scan=30 mm/s

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$Mass fraction of Fe element under different offsets. (a) Longitudinal section; (b) cross section$

Fig. 9. Mass fraction of Fe element under different offsets. (a) Longitudinal section; (b) cross section

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Fig. 10. Distribution of Fe element under different parameters. (a) Parameters before adjustment; (b) parameters after adjustment

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Table 1. Mass fraction of elements in 304SS material unit: %
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Table 1. Mass fraction of elements in 304SS material unit: %
C Si Cr Ni Fe
0.08 1.8 19.0 11.0 Bal.

Table 2. Design of orthogonal parameters
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Table 2. Design of orthogonal parameters
Factor Level
1 2 3 4 5
Q /W 600 700 800 900 1000
d_offset /μm -100 -50 0 50 100
V_scan /(mm·s^-1) 10 15 20 25 30

Table 3. Experimental results of the orthogonal simulation

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Table 3. Experimental results of the orthogonal simulation

No.	Q /W	d_offset /μm	V_scan /(mm·s^-1)	C_aver /%	No.	Q /W	d_offset /μm	V_scan /(mm·s^-1)	C_aver /%
1	600	-100	10	29.74	14	800	50	10	37.03
2	600	-50	15	31.32	15	800	100	15	37.01
3	600	0	20	28.78	16	900	-100	25	22.01
4	600	50	25	29.48	17	900	-50	30	23.34
5	600	100	30	30.36	18	900	0	10	34.70
6	700	-100	15	26.36	19	900	50	15	32.19
7	700	-50	20	26.20	20	900	100	20	31.89
8	700	0	25	26.02	21	1000	-100	30	24.38
9	700	50	30	24.47	22	1000	-50	10	31.92
10	700	100	10	41.43	23	1000	0	15	30.35
11	800	-100	20	23.19	24	1000	50	20	29.55
12	800	-50	25	23.35	25	1000	100	25	30.80
13	800	0	30	25.06

Table 4. Range analysis results
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Table 4. Range analysis results
Factor 1 2 3 4 5 R
Q /W 29.94 28.90 29.13 28.83 29.04 1.11
d_offset /μm 25.14 27.23 28.29 30.55 34.30 9.17
V_scan /(mm·s^-1) 34.97 31.45 27.92 26.33 25.52 9.45

Table 5. Mixing time the molten pool at different scanning velocity
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Table 5. Mixing time the molten pool at different scanning velocity
V_scan/(mm·s^-1) 10 20 30
Mixing time/ms 168 80 52

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Zixun Li, Xiuli He, Gang Yu, Chongxin Tian, Zhiyong Li, Shaoxia Li. Parametric Study of Fe Element Distribution in Laser Conduction Welding of Ni/304SS[J]. Chinese Journal of Lasers, 2021, 48(18): 1802013

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