Journal of Welding and Joining
- Volume 11 Issue 1
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- Pages.52-61
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- 1993
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- 2466-2232(pISSN)
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- 2466-2100(eISSN)
A study on the pure Al weldability using a pulsed Nd : YAG laser
펄스형 Nd:YAG 레이저를 이용한 Al의 용접 특성연구
Abstract
Laser welding of ASTM no. 1060 Al plate with a pulsed Nd: YAG laser of 200W average power was performed for end capping of KMRR nuclear fuel elements In this research, we performed basic welding experiments. Firstly, laser output parameters which affect laser welding parameters were studied by changing laser input parameters for effective welding of 1060 Al plates. We found that laser power density and pulse energy are important parameters for smooth bead shape. Secondly, welding parameters which affect weld width-to-depth ratio were studied by changing power density and pulse energy, shielding gas, and defocusing. We found that power density must be higher than 0.3 Mw/cm
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