Numerical Simulation and Experimental Study of Single-Track Laser Cladding of 304 Stainless Steels

Wei Guo; Yapu Zhang; Rongxia Chai

doi:10.3788/LOP56.091401

Laser & Optoelectronics Progress, Volume. 56, Issue 9, 091401(2019)

Numerical Simulation and Experimental Study of Single-Track Laser Cladding of 304 Stainless Steels

Wei Guo, Yapu Zhang, and Rongxia Chai^*

Author Affiliations

College of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an, Shaanxi 710054, China

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Figures & Tables(10)

Fig. 1. Schematic of laser cladding process

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Fig. 2. Laser cladding. (a) Schematic of single-track cladding; (b) single-track macro-morphologies

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Fig. 3. Temperature field distributions (up) and macroscopic cross-sectional diagrams (down) under different laser powers when laser scanning speed is 13 mm/s. (a)(e) 2100 W; (b)(f) 2300 W; (c)(g) 2500 W; (d)(h) 2700 W

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Fig. 4. Temperature field distributions (up) and macroscopic cross-sectional diagrams (down) under different laser scanning speeds when laser power is 2500 W. (a)(e) 7 mm/s; (b)(f) 10 mm/s; (c)(g) 13 mm/s; (d)(h) 16 mm/s

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Fig. 5. Microstructures in middle of cladding layers under different laser powers when laser scanning speed is 13 mm/s. (a) 2100 W; (b) 2300 W; (c) 2500 W; (d) 2700 W

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Fig. 6. Microstructures in middle of cladding layers under different laser scanning speeds when laser power is 2500 W. (a) 7 mm/s; (b) 10 mm/s; (c) 13 mm/s; (d) 16 mm/s

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Table 1. Chemical compositions of 27SiMn steel (mass fraction, %)
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Table 1. Chemical compositions of 27SiMn steel (mass fraction, %)
C Si Mn P S Cu Cr Ni Mo
0.24-0.32 1.10-1.40 1.10-1.40 ≤0.035 ≤0.035 ≤0.30 ≤0.30 ≤0.30 ≤0.15

Table 2. Chemical compositions of 304 stainless steel powder (mass fraction, %)
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Table 2. Chemical compositions of 304 stainless steel powder (mass fraction, %)
C Si Mn Ni Cr O S Fe
0.15 0.8 0.2 8-12 17.5-18.5 <0.20 ≤0.03 Bal.

Table 3. Virtual circle sizes under different laser powers when laser scanning speed is 13 mm/s
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Table 3. Virtual circle sizes under different laser powers when laser scanning speed is 13 mm/s
Laserpower /W SimulatedradiusR' /mm ExperimentalradiusR /mm Experimentalradiusr /mm HAZΔR /mm
2100 1.867 1.767 1.245 0.522
2300 2.046 1.821 1.286 0.535
2500 2.281 2.047 1.409 0.638
2700 2.685 2.478 1.741 0.737

Table 4. Virtual circle sizes under different laser scanning speeds when laser power is 2500 W
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Table 4. Virtual circle sizes under different laser scanning speeds when laser power is 2500 W
Laserscanningspeed /(mm·s^-1) SimulatedradiusR' /mm ExperimentalradiusR /mm Experimentalradiusr /mm HAZΔR /mm
7 3.512 3.013 1.926 1.087
10 2.863 2.587 1.680 0.907
13 2.281 2.047 1.409 0.638
16 1.695 1.749 1.220 0.529

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Wei Guo, Yapu Zhang, Rongxia Chai. Numerical Simulation and Experimental Study of Single-Track Laser Cladding of 304 Stainless Steels[J]. Laser & Optoelectronics Progress, 2019, 56(9): 091401

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Paper Information

Category: Lasers and Laser Optics

Received: Sep. 28, 2018

Accepted: Nov. 26, 2018

Published Online: Jul. 5, 2019

The Author Email: Rongxia Chai (joancra_030159@163.com)

DOI:10.3788/LOP56.091401

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Chemical compositions of 27SiMn steel (mass fraction, %)

Table 1. Chemical compositions of 27SiMn steel (mass fraction, %)

Table 2. Chemical compositions of 304 stainless steel powder (mass fraction, %)

Table 2. Chemical compositions of 304 stainless steel powder (mass fraction, %)

Table 3. Virtual circle sizes under different laser powers when laser scanning speed is 13 mm/s

Table 3. Virtual circle sizes under different laser powers when laser scanning speed is 13 mm/s

Table 4. Virtual circle sizes under different laser scanning speeds when laser power is 2500 W

Table 4. Virtual circle sizes under different laser scanning speeds when laser power is 2500 W