Manufacturing method for similar-disc cross-section forge piece with height-diameter ratio smaller than 0.3

Abstract

The invention discloses a manufacturing method for a similar-disc cross-section forge piece with the height-diameter ratio smaller than 0.3. The manufacturing method includes the steps that an alloy ingot is heated to 1,150 DEG C to 1,180 DEG C, and through upsetting, the punching and chambering processes, a rolled blank is manufactured; the rolled blank is put into a furnace and heated to 1,150 DEG C to 1,180 DEG C, the obtained rolled blank is taken out and put on a ring rolling machine, a main roller bushing and a core roller bushing sleeve a main roller and a core roller respectively, thering rolling machine is started, and starts to rotate under driving of the main roller and the core roller, a conical roller is pressed on the end face of the blank, rolling is started, the size is inplace, and then the ring rolling machine is closed; an abnormal-shape ring piece after ring rolling is obtained, a small balance amount of machining is carried out after heat treatment, and the similar-disc cross-section forge piece can be obtained. According to the manufacturing method, the material utilization rate is greatly increased, metal filters cannot be cut off through a small balance amount of machining, the service life of a product is prolonged, the comprehensive performance of the product is improved, and the manufacturing period is short; through the technical advantages of thelocal, continuous and the small deformation amount of ring rolling, if a large-tonnage hydraulic machine is manufactured through small-tonnage equipment, the forge piece can be manufactured, and the equipment cost and loss are greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of forging, and mainly relates to a method for manufacturing a disc-like section forging with a height-to-diameter ratio of less than 0.3. Background technique [0002] The forging of the present invention is a key part of a certain equipment, such as figure 1 shown. The material is aluminum alloy. Due to the irregular shape, the height is much smaller than the wall thickness, and many places are irregular curved surfaces, so forging is very difficult. [0003] There are two conventional manufacturing methods: [0004] Method 1: Forging the forging into a ring according to the contour size, and then machining; [0005] Method 2: Forge a ring first, then bend it through a mold, and then machine it; [0006] However, due to the large size of the forging, more than 6,000 tons of hydraulic presses are required for forming. Due to the particularity of the structure, the material utilization rate of the exist...

AI Technical Summary

Problems solved by technology

[0006] However, due to the large size of the forging, more than 6,000 tons of hydraulic presses are required for forming

Due to the particularity of the structure, the material utilization rate of the existing method is very low (about 20%). At the same time, after a large margin of machining, the metal fiber is cut off, which reduces the service life and comprehensive performance of the product, and the manufacturing cycle is long. , unable to meet the equipment schedule requirements

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