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[CN 202010195128.3] Manufacturing method of thick blade for plate shearing machine
[CN 202010195128.3] A Method for Manufacturing Thick Blades for Shears Title: A Method for Manufacturing Thick Blades for Shears Application Number: CN 202010195128.3 Applicant: Maanshan Shenlite Heavy Industry Machinery Co., Ltd. Application Date: 2020-3-19 Patent Type: Application for the Invention The present invention discloses a method for manufacturing thick blades for shears and belongs to the technical field of blade preparation. The steps of the invention are as follows: the thick blade of the 1. plate shearing machine is made of forging blank, and the forging blank is drawn and forged; 2. annealing the forging blank; 3., the forging blank is made into a workpiece with finishing allowance, and the first rough straightening is carried out; 4., the forging blank after rough machining is subjected to quenching and tempering heat treatment; 5., the forging blank after heat treatment is finished once, and in the finishing process, the second rough straightening is carried out, the final heat treatment of the forging blank is 6., and the second finishing of the forging blank is 7. The invention can ensure that the micro deformation of the thick blade of the shearing machine during the processing process is within the controllable range, thereby ensuring the overall straightness and verticality of the blade; at the same time, through the improvement of the manufacturing process, the thick blade of the shearing machine is heated more evenly, increasing the comprehensive performance of the blade itself.
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