Open AccessNumberical Simulation and Process Research of Laser Cladding on 738H Injection Mold Steel Surface
Author(s) -
Yunjie Jia,
Liyan Lou,
Linning Wang,
Yujun Cai
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/677/2/022080
Subject(s) - coating , materials science , cladding (metalworking) , finite element method , stress field , composite material , mold , die (integrated circuit) , structural engineering , engineering , nanotechnology
Laser cladding coating is the focus of development in the field of die repair. It has the characteristics of uniform and compact coating, good bonding strength, little thermal impact on the substrate, and easy to realize automation. FeCr alloy coating was prepared on 738H die steel by laser cladding process. Based on MSC Marc finite element software and life-and-death element method, the numerical analysis model of laser cladding repair was establelished, and the temperature field, stress field and deformation under different process parameters were solved. According to the simulation results, the cladding process was formulated, the hardness and linear thermal expansion coefficient of the cladding coating were characterized, and the effects of the process parameters on the structure and properties of the coating were studied. The cladding coating matched well with the substrate performance was obtained, and the high quality repair of the die surface was realized.