Laser welding of cast iron and carburized steel for differential gear
- Title
- Laser welding of cast iron and carburized steel for differential gear
- Author
- 이세헌
- Keywords
- Carburized steel; Cast iron; Computer simulation; Differential gear; Laser welding
- Issue Date
- 2011-11
- Publisher
- 대한기계학회 The Korean Society of Mechanical Engineers
- Citation
- Journal of Mechanical Science and Technology, 2011, 25(11), P.2887-2893
- Abstract
- This study concerned laser welding replacing the traditional bolted connection of the ring gear and differential case in the power train of the automobile. Laser welding is necessary to reduce weight and manufacturing cost, since the bolted connection method requires additional parts and space. In the differential gear, however, it is difficult to control the welding processes because cast iron and carburized steel contain high carbon content. To solve these welding problems, laser welding using Ni-base filler metal was used in this work. The results of welding with Ni-base filler metal satisfied the torsional stiffness and durability, but compared to the bolted connection method, noise and hardness problems occurred. Therefore, to solve these problems, penetration depth was decrease from 5mm to 4mm and the carburized layer of the ring gear was cut with I mm. As well, numerical method was used to evaluate welding deformation, torsional stiffness and fatigue.
- URI
- https://link.springer.com/article/10.1007%2Fs12206-011-0809-x
- ISSN
- 1738-494X
- DOI
- 10.1007/s12206-011-0809-x
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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