TY - JOUR
T1 - Laser rapid manufacturing of special pattern Inco 718 nickel based alloy component
AU - Zhong, Minlin
AU - Yang, Lin
AU - Liu, Wenjin
AU - Huang, Ting
AU - He, Jingjiang
PY - 2005
Y1 - 2005
N2 - Laser rapid manufacturing based on laser cladding is a novel layer additive manufacturing technology, which can be well used for producing specific material, geometry and properties components normally unavailable or very costly by conventional methods. This paper presents a project research work on laser rapid manufacturing of Inco 718 nickel based alloy component with special pattern for aeronautical application. The required pattern Inco 718 nickel based alloy component was manufactured directly by laser deposition with optimized parameters: laser power: 800W, laser beam diameter: 0.8mm, scanning speed: 0.5m/min, powder feeding rate: 3g/min; The basic microstructure of laser deposited sample is directionally solidified columnar structure, with metallurgical bound to the substrate. Laser deposited component has good metallurgical and compositional and hardness homogeneity. The average hardness is about Hv0.2 440. The tensile strength of the laser deposited Inco 718 sample is respectively 121 and 116 kgf/mm2 at room temperature and at 650°C,which are a little bit less than the data of forged Inco 718 plate 142 and 127 kgf/mm2 due to its directional solidified columnar structure perpendicular to the tensile test force.
AB - Laser rapid manufacturing based on laser cladding is a novel layer additive manufacturing technology, which can be well used for producing specific material, geometry and properties components normally unavailable or very costly by conventional methods. This paper presents a project research work on laser rapid manufacturing of Inco 718 nickel based alloy component with special pattern for aeronautical application. The required pattern Inco 718 nickel based alloy component was manufactured directly by laser deposition with optimized parameters: laser power: 800W, laser beam diameter: 0.8mm, scanning speed: 0.5m/min, powder feeding rate: 3g/min; The basic microstructure of laser deposited sample is directionally solidified columnar structure, with metallurgical bound to the substrate. Laser deposited component has good metallurgical and compositional and hardness homogeneity. The average hardness is about Hv0.2 440. The tensile strength of the laser deposited Inco 718 sample is respectively 121 and 116 kgf/mm2 at room temperature and at 650°C,which are a little bit less than the data of forged Inco 718 plate 142 and 127 kgf/mm2 due to its directional solidified columnar structure perpendicular to the tensile test force.
KW - Inco 718
KW - Laser rapid manufacturing
KW - Mechanical property
KW - Microstructure
UR - http://www.scopus.com/inward/record.url?scp=18944371614&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18944371614&partnerID=8YFLogxK
U2 - 10.1117/12.571089
DO - 10.1117/12.571089
M3 - Conference article
AN - SCOPUS:18944371614
VL - 5629
SP - 59
EP - 66
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
SN - 0277-786X
M1 - 12
T2 - Lasers in Material Processing and Manufacturing II
Y2 - 10 November 2004 through 12 November 2004
ER -