The invention relates to the technical field of
thermal shock resistance of cutters, and provides a
thermal shock resistance treatment method of a high-temperature
alloy blade
machining cutter, which comprises the following steps: pretreating a cutter base body, carrying out ultrasonic cleaning, hot
air drying and vacuum destressing integrated treatment on a WC-Co hard
alloy base body through a pretreatment unit, and carrying out gradient
doping on a composite phase, a TiC-SiC composite strengthening phase is introduced into a matrix through a
doping unit, continuous component gradient distribution from the surface to a core part is formed, intelligent graded heat treatment is carried out, closed-loop regulation and
control treatment of preheating, high-temperature
solid solution, sectional cooling and multi-section
tempering is sequentially carried out through a heat
treatment unit, and a heat treatment gradient is constructed. A thermal stress self-compensation
system is constructed through the three-dimensional
collaborative design of'component gradient +
coating gradient + heat treatment gradient ',
thermal expansion coefficient
continuous transition formed by the three-dimensional gradient is matched with the stress release effect, the maximum thermal stress in the
thermal shock process is greatly reduced, and the thermal
shock resistance stability is remarkably improved.