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Radial forging non-rotating forging method

A technology of rotary forging and radial forging machine, which is applied in the field of forging and can solve problems such as insufficient forging performance of radial forging machines

Pending Publication Date: 2020-11-13
DAYE SPECIAL STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method of radial forging without rotation, which can greatly improve the problem of insufficient forging performance of radial forging machines

Method used

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  • Radial forging non-rotating forging method

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Embodiment 1

[0051] The incoming material is: 5.4t octagonal ingot, steel type 316L; the finished product is 307 round, the heating temperature is 1210°C±10°C, and after 6.5 hours of heat preservation, it is released to the 16MN diameter forging machine for forging (currently the forging range of the 16MN hydraulic diameter forging machine is 300- 500mm), the specific forging steps are as follows:

[0052] 1) Rotation synchronous forging

[0053] The first pass of chamfering forging, one group and two groups of hammer heads rotate synchronously forging, the rotation angle is 22.5°, the feed is 60mm, the forging position of the manipulator is "0°, the forging frequency is 1300ms / time, and the forging specification is up to 660mm;

[0054] In the second pass, the first group and the second group of hammerheads rotate synchronously forging, the rotation angle is 30°, the feed is 60mm, the forging position of the manipulator is "0°, the forging frequency is 950ms / time, and the approximate circ...

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Abstract

The invention provides a radial forging non-rotating forging method. A radial forging machine is used for forging a blank, the radial forging machine is provided with four symmetrically-distributed hammer heads, two oppositely-arranged hammer heads are a first group hammer head, and the other two oppositely-arranged hammer heads are a second group hammer head. The forging method comprises the following steps that non-rotating forging is carried out, specifically, the blank is not rotated but only fed, the first group hammer head and the second group hammer head synchronously forge the blank toa set specification; a plurality of passes non-rotating forging are executed; rotating forging is carried out, specifically, the blank is fed for forging while rotating; and rotating rounding is carried out, specifically, final round steel is obtained after rotating rounding. Aiming at the defect that the radial forging machine is insufficient in forging penetration, the radial forging non-rotating forging method adopts non-rotating forging, and forging of the radial forging machine is achieved by controlling parameters such as rolling reduction, feeding amount, forging frequency and forgingposition.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to a radial forging non-rotational forging method. Background technique [0002] At present, the SMS hydraulic diameter forging machine is equipped with two pairs of four symmetrically distributed hammerheads, which are independently controlled by four hydraulic cylinders, which can realize synchronous actions. Direction synchronization implements closed reciprocating high-speed and high-frequency precision forging on metal blanks. At the same time, the manipulator can realize rotary forging at different angles. The forging frequency of the radial forging machine can reach up to 220 times per minute. Due to its high forging frequency, the temperature change during the forging process is small, and the forging process achieves a one-shot process. Due to the advantages of high production efficiency and good dimensional accuracy control, radial forging machines are widely used in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00
CPCB21J5/00
Inventor 何燕平柯其棠贾余超苏超唐国林王显华雷应华
Owner DAYE SPECIAL STEEL CO LTD
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