A repair method of punching die for compressor stator vane

Abstract

A repairing method for a compressor stator blade punching die comprises the following steps that firstly, polishing is carried out on a coloring point on a top block until polishing is even; then, the middle area of the top block is polished away by 0 mm to 0.3 mm, and it is ensured that the middle area is in smooth transition with the head end area and the tail end area; and finally, the head end area of the top block is evenly polished away by 0.1 mm, and it is ensured that the head end area is in smooth transition with the middle area. Accordingly, repairing of the top block is completed. The repairing method for the compressor stator blade punching die solves the problem that due to the structural characteristics of a blade, punching edge rolling is prone to appearing; the punching quality of the blade is ensured; meanwhile, the repairing method enables the punching die to have the good punching manufacturability; and stability of the blade product quality is ensured.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a surface repair method of a punching die, in particular to a repair method of a compressor stator blade punching die. Background technique [0002] figure 1 is a structural schematic diagram of a compressor stator blade, see figure 1 As shown, the compressor stator blade 1 has a thicker arc-shaped head end 11, a thinner tail end 12, a blade root 13 and a blade tip 14, the thinnest part of the tail end 12 Only 0.15 mm, the blade root 13 is provided with two notches 131 . The compressor stator blade 1 is processed and manufactured by punching. figure 2 for manufacturing figure 1 The structural schematic diagram of the existing punching die of the compressor stator blade shown, see figure 2 As shown, the punching die 2 includes a base plate 21, a die 22 arranged on the base plate 21, and a punch 23 corresponding to the die 22 that can reciprocate up and down, and the die 22 is provide...

AI Technical Summary

Problems solved by technology

After repairing by the above method, the curling situation can be alleviated to a certain extent, but because there is a certain distortion in the upper and lower profiles of the compressor stator blade 1, the stress state during punching is complicated, and the top block 24 after such repair It cannot support the material very well, therefore, the above-mentioned traditional coloring and grinding cannot completely solve the problem of edge curling of thin edges

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