레이저 용접 열원 모델 도출 시 소요시간 감소를 위한 간소화 모델 도출을 위한 연구Part I : 용접 방향 직교 길이 감소 모델
A Study on Simplified Model for Reducing Time During Deriving the Proper Laser Welding Heat Source Model Part I : Reduced model along welding transverse direction
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As laser welding has low thermal distortion and fast welding speed, the needs in the field is increasing in varous industries. Prediction of distortion and design with that prediction are very important for using welding process in the field. However many types of heat source models for laser welding are suggested, field engineers feels difffucult for using a proper model for a specific case. Thus I, author, suggested a representative model which can cover most of existing models with multi-layered heat source model. This method is very powerful, but there are much time consumption with analysis and comparision among more than 1,000 candidates. To solve these shortcomings, this study focused on to find the simplified model. In order to construct the simplified model, the length of the orthogonal direction to the welding direction was reduced from 300mm to 35mm, which makes time reduction of 75% with sustaining the quality of the original model. That can cover the disadvantage of multi-layered heat source model for laser welding, enhance the prediction of welding distortion after laser welding
Abstract
As laser welding has low thermal distortion and fast welding speed, the needs in the field is increasing in varous industries. Prediction of distortion and design with that prediction are very important for using welding process in the field. However many types of heat source models for laser welding are suggested, field engineers feels difffucult for using a proper model for a specific case. Thus I, author, suggested a representative model which can cover most of existing models with multi-layered heat source model. This method is very powerful, but there are much time consumption with analysis and comparision among more than 1,000 candidates. To solve these shortcomings, this study focused on to find the simplified model. In order to construct the simplified model, the length of the orthogonal direction to the welding direction was reduced from 300mm to 35mm, which makes time reduction of 75% with sustaining the quality of the original model. That can cover the disadvantage of multi-layered heat source model for laser welding, enhance the prediction of welding distortion after laser welding
참고문헌 (10)
- G. Sierra, "Steel to aluminium key-hole laser welding", Materials Science and Engineering: A, 447(1-2), pp.197~208 (2007)
- Z. Liu, "Microstructure evolution and mechanical properties of SUS301L stainless steel sheet welded joint in ultrasonic vibration assisted laser welding", Optics & Laser Technology, 153, pp.108193~ (2022)
- A. Unni, "Determination of heat source model for simulating full penetration laser welding of 316 LN stainless steel by computational fluid dynamics", Materials Today: Proceedings, 45(6), pp.4465~4471 (2021)
- 표창민, "전역 최적화 알고리즘을 이용한 파이버 레이저 용접 열원 모델 구현에 관한 연구 Part III : 용접 파워에 따른 열원파라미터의 영향도 분석", 한국기계기술학회지, 23(4), pp.492~498 (2021), 한국기계기술학회[DOI]
- C. Pyo, "A Study on Welding Deformation in Fiber Laser Welding of 9% Nickel Steel through Finite Element Analysis Part I : Implementation of Welding Heat Source Model", Processes, 9(12), pp.9122188~ (2021)
- 김관우, "Analysis of pulsed Nd:YAG laser welding of AISI 304 steel", Journal of Mechanical Science and Technology, 24(11), pp.2253~2259 (2010), 대한기계학회
- H. Chang, "AFinite element analysis of welding processes by using ABAQUS USER SUBROUTINE", The 2007 fall conference of the korean society of mechanical engineers, 24(11), pp.12~15 (2007)
- 최경환, "오스테나이트계 내열 구상흑연주철의 고온 특성", 한국주조공학회지, 37(2), pp.31~37 (2017), 한국주조공학회[DOI]
- K. Lee, "Calculation of Material Properties with JMatPro for the Process Simulation", Proceedings of the Korean Society for Technology of Plasticity Conference, pp.142~145 (2008), The Korean Society for Technology of Plasticity
- F. Incropera, "Fundamentals if heat and mass transfer", John Wiley & Sons, Inc