한국레이저가공학회지 (Laser Solutions)
- 제4권1호
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- Pages.21-28
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- 2001
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- 1229-0963(pISSN)
이동 열원을 고려한 전자빔 용접의 유한요소해석
Fininte element analysis of electron beam welding considering for moving heat source
초록
Simulation on the electron beam welding of Al 2219 alloy was carried out by using commercial FEM code MARC, which encounters moving heat sources. Due to axisymmetry of geometry, a half of the cylinder was simulated. A coupled thermo-mechanical analysis was carried out and subroutine for heat flux was substituted in the program. The material properties such as specific heat, heat transfer coefficient and thermal expansion coefficient were given as a function of temperature and the latent heat associated with a given temperature range is considered. As a result, the proper beam power is 60㎸
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