Manufacturing method of copper-based brazing filler metal laser brazing cubic boron nitride grinding particles

• Main Authors: YANG ZHIBO, LIU AIJU, ZHAI YAN, ZHANG ZHEN, YANG RUIYUN, MING PINGMEI, JIAO FENG
• Format: Patent
• Language: English
• Published: 30.12.2015
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention discloses a manufacturing method of copper-based brazing filler metal laser brazing cubic boron nitride grinding materials. The method particularly comprises the following steps that 1, a 45 steel substrate and CBN grinding particles are put in organic solvent, and deoiling and decontamination treatment are conducted through an ultrasonic cleaning method; 2, copper-based brazing filler metal is laid on the 45 steel substrate, and the CBN grinding particles are orderly distributed on the brazing filler metal; 3, a sample to be added is put on brazing equipment composed of a CO2 laser device, a numerical control machining tool and a gas shielding device, the copper-based brazing filler metal is heated and melted through laser which has certain frequency and is emitted by the CO2 laser device, and the brazing filler metal has good infiltration property on the steel substrate and the CBN grinding particles. According to the manufacturing method of the copper-based brazing filler metal laser brazing cubic boron nitride grinding materials, the manufacturing cost is low, brazing CBN particle grinding is conducted through laser, the energy density is high, the speed of increasing and decreasing the temperature is high, local heating can be achieved, a heat-affected zone is small, and heat damage is not prone to occurrence; laser beams can be transmitted through optical fibers, machining can almost be conducted on any brazing parts, and the flexibility is better.