首页|Research status of crack problem in laser brazing diamond
Research status of crack problem in laser brazing diamond
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Diamond tools have been widely used in national defense military,automobile manufacturing,resource exploitation and other fields.Laser brazing diamond technology is often applied to the preparation of diamond tools.However,the formation and expansion of cracks in the process of laser brazing diamond seriously affect the mechanical properties of diamond tools.In order to solve the crack problem of laser brazing diamond,many scholars are committed to the research on improving the solder,optimizing the laser process parameters,improving the laser brazing equipment,optimizing the design of joint form,and developing ultrasonic-assisted laser brazing technology,etc.These studies have achieved certain results.Aiming at the research status of laser brazing diamond crack problem,the crack characteristics of brazing diamond are firstly introduced,and the formation reasons of laser brazing diamond crack are elaborated.Then,the elemental characteristics of brazing filler metals used in brazing diamond are introduced.The influences of Ni-Cr and Ag-Cu-Ti alloy solder and laser process parameters on the crack problem are viewed.Finally,the solutions to the crack problem by scholars at home and abroad in recent years are summarized,and the future research directions to solve crack problem are prospected.
State Key Laboratory of Advanced Brazing Filler Metals&Technology,Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,Henan,China
Central Plain's leading talent fund for Science,Technology and Innovation of China
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