According to the poor accessibility of the semi-closed inclined cavity included in the design of the high-pressure turbine disk and the large cutting resistance of the powder metallurgy super-alloy,the thickness of the surface hard-ened layer of the powder metallurgy super-alloy is predicted through cutting simulation.Then through the FGH96 bar cut-ting test,the relationship between the actual cutting amount and the ideal cutting amount of the tool is deduced,and the ex-perimental verification is carried out.The cutting amount of the tool is adjusted according to the requirements of the part drawing,and the tool pick-up is completed at one time.The application of this method can obtain a reliable and stable tool pick-up effect,and has good reference significance for the processing of other parts that difficult to measure,have tool pick-up requirements,and use difficult-to-cut materials.
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