Development M42 HSS High-Friction Welding Process

In the experimental foundation, discussed actuated the friction welding weld joint continuously the metallurgy characteristic, the research attachment organization and the performance relations, has provided the theory basis for the welding craft parameter optimization.Elaborated in the friction welding weld joint to have not flaws and the origin and so on welded together, weak joint, as well as at present uses in the M42 high performance high-speed steel and the carbon structural steel 45 steel friction welding weld joint lossless examination method.In view of actual welds the question which in the M42 process appears to carry on the analysis, the union high performance high-speed steel M42 organization performance and the shop characteristics as well as actuates the friction welding continuously some characteristics, to had the friction welding craft stability, the rationality further consummates; Through the experiment, to the round shake which carried forward the high performance high-speed steel friction welding in the heat treatment produced, superheat and so on the phenomena has carried on the detailed metallography analysis, had pointed out the flaw produced reason.In butt weld high performance high-speed steel M42 cutting tool following heat treatment working procedure or use process because welds the question which appears to carry on the qualitative analysis, carried forward the cutting tool semifinished materials annealing craft has carried on the fumble experiment to M42 and the 40Cr friction welding, obtains under the different temperature condition, welded joint heat-affected zone M42 degree of hardness distributed situation. And formulates the solution improvement countermeasure, the flaw which when in after foreword heat treatment process as far as possible makes up welding creates, achieved the extension cutting tool service life, maximum limit displays the high performance high-speed tool steel M42 fine performance the goal.In brief, this topic research craft, implemented in the company, has obtained the good effect, enhanced the cutting tool to manufacture the factory the material use factor, after reduced in the foreword heat treatment process quenched when has cracked rate, has met the user need, also has realized the company benefit maximization, had the obvious benefit.