Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403


공학

한국표면공학회지 (37권5호 279-288)

Three-Dimensional Finite Element Modeling of Laser Cladding Process

레이저 클래딩 공정의 3차원 유한요소 모델링

조계평;시호문;이흥식;조종두;
Zhao Guiping;Si Ho-Mun;Lee Heungshik;Cho Chongdu;

중국 서안교통대학;인하대학교 기계공학부;

Abstract

This paper describes a three-dimensional transient finite element model for a laser cladding process. In the model, an adaptive finite element technique is used for dilution control. Using the proposed finite element model, the effects of process parameters such as scanning speed, laser`s power, and preheating on the dilution of clad layer, the shape of melting pool, and the temperature distribution are calculated. It is also shown that the optimal process parameters for the required dilution can be determined from the proposed finite element model. An experiment is performed to validate the proposed model. The numerical results are compared with experimental ones.

Keywords

Laser cladding;Dilution;Finite element modeling;