FIELD: metal cutting processes and equipment, milling by means of end milling cutter blades of one-piece impellers of gas turbine engines in number program control machine tools.
SUBSTANCE: method comprises steps of rough working for cutting inter-blade grooves of the same width in radial direction and finishing for milling blade along height. Both types of working are performed at one mounting operation. In order to improve accuracy, working is performed along lines and depth of each line is set more than thickness of deformed layer of blank after previous working. For each line deformation value of worked surface of impeller is set more than deformation value of worked surface after working i-line.
EFFECT: enhanced accuracy of working.
4 cl, 5 dwg
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