Research of preventing the edges of tooth surface from collapsing in laser-cladding process

CHEN Lie; XIE Pei-lin

Collapsing of the edges is one of the most important problems in laser-cladding process.The objective is to find the reason and how to solve it.At first,an analytical model was established and the temperature field in the laser-cladding was calculated.After analyzing the calculation results,it was found that the centralization of heat energy at edges was the main reason of edge collapse.Based on experiments,how to solve the edge collapse was found.Finally,this method was applied to laser-cladding on tooth surface and amelioration was achieved on the tooth surface.The results of the experiments prove that this method is valuable and reliable.

Corresponding author: XIE Pei-lin, cangn1983@tom.com

1. Department of Mechanical Engineering, Naval Engineering University, Wuhan 430033, China

Received Date: 2006-07-25

Accepted Date: 2006-10-26

Available Online: 2007-10-25

Abstract: Collapsing of the edges is one of the most important problems in laser-cladding process.The objective is to find the reason and how to solve it.At first,an analytical model was established and the temperature field in the laser-cladding was calculated.After analyzing the calculation results,it was found that the centralization of heat energy at edges was the main reason of edge collapse.Based on experiments,how to solve the edge collapse was found.Finally,this method was applied to laser-cladding on tooth surface and amelioration was achieved on the tooth surface.The results of the experiments prove that this method is valuable and reliable.

HTML

Reference (10)

[1]	HUANG R F,LUO J M,WANG Ch Q.Application and developmentsof laser cladding technology[J].Ordnance Material Science and Engineering,2005,28(4):57～58(in Chinese).
[2]	XIAO H J,PENG Y,MA Ch Y.Surface modification of laser[J].Surface Technology,2005,34(5):10～12(in Chinese).
[3]	ZHOU X W,WANG X Zh.Application of the laser processing technology in industry[J].Journal of Zhongzhou University,2005,22(4):110～111(in Chinese).
[4]	LU J B,WANG Zh X,XI Y J.Calculation of temperature field in laser cladding using FEM[J].Journal of Zhongyuan Institute of Technology,2005,16(6):58～60(in Chinese).
[5]	HUANG Y L,ZOU D N,LIANG G Y.Numercial simulation on cladding track,fluid flow field and temperature field in laser cladding process with power feeding[J].Rare Metal Materials and Engineering,2003,32(5):330～334(in Chinese).
[6]	ZENG D W,XIE Ch Sh.A numerical simulation for two dimensional quasi-state fluid flow field and temperature field in the molten pool of laser cladding[J].Acta Metallurgica Sinica,1999,35(6):604～610(in Chinese).
[7]	LI Sh,HU Q W,ZENG X Y.Effect of laser mode on the quality of laser cladding layers[J].Laser Technology,2005,29(6):667～669(in Chinese).
[8]	HUANG Y L,LI J G,LIANG G Y.Effect of powder feeding rate on interaction between laser beam and powder stream in laser cladding process[J].Rare Metal Materials and Engineering,2005,34(10):1520～1523.
[9]	WU G,SHI J,DAI Zh S.The scanning techniques and technology for gear laser harden[J].Applied Laser,1998,18(4):151～154(in Chinese).
[10]	SONG G M,WU G,HUANG W J.Cracking control in laser cladding process with unidirectional powder feeding and double scanning[J].Heat Treatment of Metals,2005,30(5):26～28(in Chinese).

Research of preventing the edges of tooth surface from collapsing in laser-cladding process

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views