Research on Cutting Edge Repair of Machine Tool Based on Carbide Brazing Technology
The cutting edge of mechanical equipment will be damaged by breakage,fracture,wear and other damages under high strength impact.In order to improve the shear strength of cutting edge and the appearance effect after repair,the repair technology of cutting edge based on carbide brazing technology is studied.Using YG8 carbide with tungsten carbide as the main component as the base material,the filler metal and brazing agent are determined,and the cutting edge is re-paired under the action of brazing equipment.The cutting edge properties repaired under different cooling methods,different weld widths and different heating rates are tested by universal testing machine.The test results show that the method of gyp-sum powder cooling tool and borax treating excess brazing agent can improve the cutting edge shear strength,and the re-paired cutting edge appearance is good,the width of the weld is less than 0.1mm,the heating rate is 30℃/s,the repaired mechanical equipment cutting edge shear strength is higher,the repair effect is better.
cemented carbidebrazing technologytool edgerestoration researchbrazing metal and brazing agent
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