Laser Cladding Repair of Gear Cracks
Author Information
Author(s): Yu Shuangyang, Chong Qi, Zhou Jianzhu, Yang Youwen, Li Hua, Li Kun
Primary Institution: School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou, China
Hypothesis
What are the optimal parameters for laser cladding repair of surface cracks on mechanical parts?
Conclusion
The study found that a laser power of 140 W and a scanning speed of 8 mm/s are optimal for repairing gear cracks, significantly enhancing the mechanical properties of the cladding layer.
Supporting Evidence
- The maximum tensile strength of the cladding layer reached 1312.80 MPa, which is 1.22 times higher than the substrate material.
- The wear loss of the cladding layer under optimized parameters reduced from 9.3 mg for the base material to 0.5 mg.
- Finite element simulations indicated that the optimal laser power and scanning speed for cladding are 140 W and 8 mm/s.
Takeaway
This study shows how to fix broken gears using a special laser technique that makes them stronger and last longer.
Methodology
The study used ANSYS software for thermo-mechanical simulations and conducted tensile strength and wear resistance tests on the cladding layer.
Limitations
The numerical simulations cannot fully account for all factors involved in the laser cladding process.
Digital Object Identifier (DOI)
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