Topology Compensation Fuzzy Optimal Design Method of Die for Cold Rolling of Blades without Allowance

Abstract

The invention relates to the technical field of cold roll forming die design, in particular to a topology compensation fuzzy optimization design method of an allowance-free cold rolling processing die of a vane. The topology compensation fuzzy optimization design method of the allowance-free cold rolling processing die of the vane includes cold rolling vane die face initial design based on virtual shaping, die face reconstitution design based on topology compensation, and die face fuzzy optimization design based on virtual die repair. The topology compensation fuzzy optimization design method of the allowance-free cold rolling processing die of the vane specifically includes following steps: firstly, determining deformation error after cold rolling of the vane through the virtual shaping; then, performing reversible deformation error compensation design of the shaping face of the vane by using topology compensation technology, and achieving geometry reconstitution of rolling die face; finally, comparing die testing status of the virtual die repair with geometry demands of design of the vane, and using a double objective fuzzy optimization algorithm (DOFO) to achieve global optimization design of the allowance-free cold rolling processing die of the vane. The topology compensation fuzzy optimization design method of the allowance-free cold rolling processing die of the vane solves the problems that the die needs to be frequently tested and repaired, rejection rate is high, the design cycle is long and the like due to the fact that the rolling die face of the vane is simple in design, and rebound compensation needs to be considered, and accordingly achieves allowance-free cold roll forming of the vane.

Description

technical field [0001] The invention relates to a topology compensation fuzzy optimization design method of a blade-free cold rolling processing mold based on virtual forming topology compensation, and belongs to the technical field of cold rolling forming mold design. Background technique [0002] With the development of modern industry, driven by high performance and high indicators, some parts are facing the manufacturing problem of complex surface precision machining. For example, engine blades are characterized by thin airfoils, small leading and trailing edge radii, and twisted profiles. The allowable deviation of airfoil profiles and edge radii is very strict. It is an advanced blade manufacturing technology to realize the near-net shape of the blade by cold rolling. The Chinese invention patent (patent number 200710157510.X) introduces a cold rolling process for high-pressure compressor motorized and stationary blades of GH150 alloy. Chinese invention patent (Patent...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a topology compensation fuzzy optimization design method of blade no margin cold rolling processing die based on virtual forming topology compensation, which can solve the problems caused by simple consideration of springback compensation in blade rolling die profile design in the prior art. Technical problems such as frequent mold repairs, high scrap rate, and long design cycle

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