Rolling forming method of C-shaped section forge piece

A forming method and cross-section technology, applied in the field of forging, can solve the problems of low material utilization rate, long manufacturing cycle, large wall thickness, etc., and achieve the effect of improving service life and comprehensive performance, short manufacturing cycle, and improving material utilization rate

Inactive Publication Date: 2019-01-18
GUIZHOU AEROSPACE XINLI CASTINGSAND FORGINGS
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  • Application Information

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

Method used

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  • Rolling forming method of C-shaped section forge piece
  • Rolling forming method of C-shaped section forge piece

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Experimental program
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Effect test

Embodiment Construction

[0018] Such as figure 2 Shown, the rolling forming method of C-shaped cross-section forgings, the steps are as follows:

[0019] The first step: first heat the alloy ingot to 1150-1180°C, and then improve the as-cast structure of the alloy ingot by upsetting and elongating; then perform punching and enlarging to make a prefabricated billet;

[0020] Step 2: Heat the prefabricated billet into the furnace to 1150-1180°C, take out the prefabricated billet and put it on the ring rolling machine; put the main roller bushing 1 on the main roller 2, and put the core roller bushing 3 on the core roller 4 on;

[0021] Step 3: Start the ring rolling machine and start to rotate under the drive of the main roll 2 and the core roll 4. The tapered roll a5 and the tapered roll b6 are respectively pressed on the two end faces of the prefabricated billet to start rolling. After the size is in place, close the The ring rolling machine obtains the C-shaped forging 7 after the ring is rolled.

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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...

Claims

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Application Information

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IPC IPC(8): B21H1/06
CPCB21H1/06
Inventor 赵晓光张明桥万东海张令冉雄波
Owner GUIZHOU AEROSPACE XINLI CASTINGSAND FORGINGS
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