Rolling forming method of C-shaped section forge piece

Abstract

A rolling forming method of a C-shaped section forge piece includes the following steps that an alloy ingot is heated to 1150-1180 DEG C, and then the alloy ingot is subjected to upsetting and drawingto improve a cast-state structure of the alloy ingot; then punching, hole expanding and rounding procedures are carried out to manufacture a prefabricated blank; the prefabricated blank is heated to1150-1180 DEG C in a furnace, and the prefabricated blank is taken out and placed on a ring rolling mill; a main roller bush sleeves a main roller, and a core roller bush sleeves a core roller; the ring rolling mill is started and starts to rotate under the driving of the main roller and the core roller, a conical roller a and a conical roller b are pressed on the two end faces of the prefabricated blank respectively, rolling is started, and after the required size is achieved, the ring rolling mill is shut down to obtain the C-shaped forged piece obtained after ring rolling. By the adoption of the method, the material utilization rate is greatly improved, only small allowance machining is needed after heat treatment, and metal fiber cannot be cut off, so that the service life of a productis prolonged, the comprehensive performance of the product is improved, and the manufacturing period is short.

Description

technical field [0001] The invention belongs to the technical field of forging, and mainly relates to a rolling forming manufacturing method of a C-shaped section forging. 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 and many irregular curved surfaces, it is difficult to forge. [0003] There are two conventional manufacturing methods: [0004] Method 1: According to the contour size, the forging is forged into a forging, and then machined; [0005] Method 2: Use a hydraulic press to release the billet, then roll it into a rectangular cross-section forging on a ring rolling machine, and then perform machining. [0006] However, due to the large size and large wall thickness of the forging, a hydraulic press of more than 6,000 tons is required for forging and forming. Due to the particularity of the structure, the material utiliza...

AI Technical Summary

Problems solved by technology

[0006] However, due to the large size and large wall thickness of the forging, a hydraulic press of more than 6,000 tons is required for forging and forming

Due to the particularity of the structure, the material utilization rate of the existing method is very low (about 10%). 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.

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