This paper was analized for movement of zinc gas by FEM, during laser lap welds in 0.8mm thick zinc-coated steel sheets with constant laser power and travel speed, This paper was analized for movement of zinc gas by FEM.<br/> Thickness of zinc c...
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https://www.riss.kr/link?id=A76025893
1995
Korean
학술저널
3-8(6쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
This paper was analized for movement of zinc gas by FEM, during laser lap welds in 0.8mm thick zinc-coated steel sheets with constant laser power and travel speed, This paper was analized for movement of zinc gas by FEM.<br/> Thickness of zinc c...
This paper was analized for movement of zinc gas by FEM, during laser lap welds in 0.8mm thick zinc-coated steel sheets with constant laser power and travel speed, This paper was analized for movement of zinc gas by FEM.<br/>
Thickness of zinc coating is 3. 57μm, constant laser power 1.7kW and travel speed 1. 7m/min. In the gap's range of 0 to 0.16mm, this simulation was executed. To compare the result from the simulation with experiment, the simulation was proved accesible and applicable to laser welds with other materials.<br/>
Because zinc absorbed laser power while zinc was melting and vaporizing, it was proved from result of the simulation that welding process was disturbed by zinc gas while laser welds of zinc-coated steel sheets<br/>
If the size of gap is very small, zinc gas is not ejected and existence between two sheets. Therefore the heat of upper sheet isn' t conductable to lower sheet and upper sheet is overmelted. If the size of gap is very large, zinc gas has nearly perfect ejection but only the part of lower sheet is melted. The range of gap size which was between 0.04 and 0.12mm was proved and desirable size of gap was 0.1mm from the simulation.<br/>
목차 (Table of Contents)
피착체의 두께가 다른 단순겹치기 접착이음에 대한 응력 특이성 파라미터의 해석
Weldbond 및 접착에 의한 박판 구조 접합에 관한 연구