Laser & Optoelectronics Progress, Volume. 55, Issue 11, 111402(2018)
Influence Factors of Fiber Laser Welding Modes for 304 Stainless Steel
Figures & Tables(6)
Fig. 1. Test point distribution when interactive action included. (a) Power density-welding speed; (b) heat input-defocus distance
Fig. 2. Typical weld shapes. (a) Circular arc shape; (b) triangular shape; (c) nail head shape; (d) nail shape
Fig. 3. Relationship between each factor and test result. (a) Laser power P; (b) welding speed v; (c) spot area S; (d) power density Q; (e) heat input E; (f) heat input density e
Table 1. Test plan of single-factor uniform design
View tableTable 1. Test plan of single-factor uniform design
Test No. Welding parameter Dependent variable Laser power P /kWTravel speed v /(mm·s-1)Defocus distance z /mmSpot area S /mm2Power density Q /(105 W·cm-2)Heat input E / (J·mm-1)Heat input density e /(J·mm-3)1 1.27 60 6 0.492 2.58 21.17 43.04 2 1.33 85 2 0.397 3.35 15.65 39.44 3 1.42 55 9 0.625 2.27 25.82 41.28 4 1.50 80 5 0.459 3.27 18.75 40.84 5 1.54 50 1 0.388 3.97 30.80 79.42 6 1.65 75 8 0.575 2.87 22.00 38.26 7 1.74 45 4 0.432 4.02 38.67 89.43 8 1.80 70 0 0.385 4.68 25.71 66.82 9 1.84 40 7 0.530 3.47 46.00 86.73 10 1.95 65 3 0.412 4.74 30.00 72.89
Table 2. Test plan when interactive action included
View tableTable 2. Test plan when interactive action included
Test No. Welding parameter Dependent variable Laser power P /kWTravel speed v /(mm·s-1)Defocus distance z /mmSpot area S /mm2Power density Q /(105 W·cm-2)Heat input E / (J·mm-1)Heat input density e /(J·mm-3) 11 1.65 40 8 0.575 2.87 41.25 71.74 12 1.50 50 5 0.459 3.26 30.00 65.34 13 1.84 65 7 0.530 3.47 28.31 53.37 14 1.74 75 4 0.432 4.02 23.20 53.66 15 1.54 85 1 0.388 3.97 18.12 46.72 16 1.27 60 0 0.385 3.30 21.17 55.00 17 1.65 75 2 0.397 4.16 22.00 55.45 18 1.80 70 5 0.459 3.92 25.71 56.01 19 1.95 65 7 0.530 3.68 30.00 56.56 20 1.54 50 9 0.625 2.46 30.80 49.24
Table 3. Summary of test results
View tableTable 3. Summary of test results
Test No. Welding parameter Dependent variable Type of shape Laser power P /kWTravel speed v /(mm·s-1)Defocus distance z /mmSpot area S /mm2Power density Q /(105 W·cm-2)Heat input E /(J·mm-1)Heat input density e /(J·mm-3)1 1.27 60 6 0.492 2.58 21.17 43.04 Circular arc (a) 2 1.33 85 2 0.397 3.35 15.65 39.44 Circular arc (a) 3 1.42 55 9 0.625 2.27 25.82 41.28 Circular arc (a) 4 1.50 80 5 0.459 3.27 18.75 40.84 Circular arc (a) 5 1.54 50 1 0.388 3.97 30.80 79.42 Nail head (c) 6 1.65 75 8 0.575 2.87 22.00 38.26 Circular arc (a) 7 1.74 45 4 0.432 4.02 38.67 89.43 Nail (d) 8 1.80 70 0 0.385 4.68 25.71 66.82 Nail head (c) 9 1.84 40 7 0.530 3.47 46.00 86.73 Nail (d) 10 1.95 65 3 0.412 4.74 30.00 72.89 Nail head (c) 11 1.65 40 8 0.575 2.87 41.25 71.74 Nail head (c) 12 1.50 50 5 0.459 3.26 30.00 65.34 Triangle (b) 13 1.84 65 7 0.530 3.47 28.31 53.37 Triangle (b) 14 1.74 75 4 0.432 4.02 23.20 53.66 Triangle (b) 15 1.54 85 1 0.388 3.97 18.12 46.72 Triangle (b) 16 1.27 60 0 0.385 3.30 21.17 55.00 Triangle (b) 17 1.65 75 2 0.397 4.16 22.00 55.45 Triangle (b) 18 1.80 70 5 0.459 3.92 25.71 56.01 Triangle (b) 19 1.95 65 7 0.530 3.68 30.00 56.56 Triangle (b) 20 1.54 50 9 0.625 2.46 30.80 49.24 Triangle (b)
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Xiaochun Leng, Shouyi Luo, Yanbao Li, Weifang Jin. Influence Factors of Fiber Laser Welding Modes for 304 Stainless Steel[J]. Laser & Optoelectronics Progress, 2018, 55(11): 111402
Paper Information
Category: Lasers and Laser Optics
Received: Mar. 21, 2018
Accepted: May. 28, 2018
Published Online: Aug. 14, 2019
The Author Email: Leng Xiaochun (m18016355981@163.com)
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