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Free forging process for sector plate forge piece

A fan-shaped plate and forging technology, applied in the field of forging technology, can solve the problems of large flash and burrs, poor forging precision, cumbersome process, etc., and achieve the effects of small machining allowance, high production efficiency and easy operation

Inactive Publication Date: 2016-10-26
ANHUI RUIJIE FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two processes are cumbersome, the precision of the forging is poor, the flash and burr are large and the material consumption is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0015] 1) Calculate blank weight; forging weight: G 0 =[α / 360πR 2 L-1 / 2(R-h 1 )L+B(H-h 1 )L]×ρ; Fire consumption: G 1 Two fires are formed, and the fire consumption is calculated at 5%, that is, G 1 =G 0 ×0.05; cut head: G 2 =1.8×B 2 ×H×2; blanking weight: G=G 0 +G 1 +G2;

[0016] 2) The first fire presses the upsetting billet, uses the upper and lower flat anvils to produce flat billets, and the planer processes fan-shaped grooves. The initial forging temperature is controlled at 1200 ° C, and the final forging temperature is controlled at 900 ° C;

[0017] 3) In the second fire forming, the blank is forged with a fan-shaped concave block and narrow anvil, and the width is properly adjusted to the figure. The initial forging temperature is controlled at 1200°C, and the final forging temperature is controlled at 800°C;

[0018] 4) After inspection, the forgings meet the standards and are put into storage.

Embodiment 3

[0020] 1) Calculate blank weight; forging weight: G 0 =[α / 360πR 2 L-1 / 2(R-h 1 )L+B(H-h 1 )L]×ρ; Fire consumption: G 1 Two fires are formed, and the fire consumption is calculated at 5%, that is, G 1 =G 0 ×0.05; cut head: G 2 =1.8×B 2 ×H×2; blanking weight: G=G 0 +G 1 +G2;

[0021] 2) The first fire presses the upsetting billet, uses the upper and lower flat anvils to produce flat billets, and the planer processes fan-shaped grooves. The initial forging temperature is controlled at 1300 ° C, and the final forging temperature is controlled at 800 ° C;

[0022] 3) In the second fire forming, the blank is forged with a fan-shaped concave block and narrow anvil, and the width is properly adjusted to the figure. The initial forging temperature is controlled at 1120°C, and the final forging temperature is controlled at 700°C;

[0023] 4) After inspection, the forgings meet the standards and are put into storage.

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Abstract

The invention discloses a free forging process for a sector plate forge piece. The free forging process includes the following steps that G0 is equal to [alpha / 360piR<2>L-1 / 2(R-h1)L+B(H-h1)L]*rho; the fire consumption is calculated, wherein G1 two-fire forming is conducted, and the fire consumption rate is 5%, that is, G1 is equal to G0*0.05; head cutting is conducted, wherein G2 is equal to 1.8*B2*H*2; the discharging weight is calculated, wherein G is equal to G0+G1+G2; flat square blank forming is conducted through an upper flat anvil and a lower flat anvil, and a sector-shaped groove is machined through a planing machine; and a forged sector-shaped concave blocking narrow anvil of a blank is drawn out, and the width and the size are adjusted properly to accord with the conditions indicated in a drawing. According to the free forging process, the requirement for the skill of workers is not high, operation is easy and convenient, and production efficiency is high; the embryo die forging shape is precise, and size precision is high, so that the number of process accessorial blocks is small, and the allowance for machining is small; and according to the forged sector-shaped face of the forge piece, a great number of raw materials are saved, the machining time is shortened, the requirement for the technological level of the workers is lowered, and the daily output is increased greatly.

Description

technical field [0001] The invention relates to a forging process, in particular to a free forging process of a fan-shaped plate forging. Background technique [0002] At present, the manufacturing method of fan-shaped forgings in the industry is relatively troublesome: one process is to preform the bar material twice, and then use open die forging to final forge the preformed intermediate blank; the other process is to make the bar material The blank is pre-forged by free forging, and after forging, the pre-formed intermediate blank is finally forged by open die forging. These two processes are cumbersome, the precision of forgings is poor, the flash and burrs are large, and the material consumption is high. Contents of the invention [0003] For solving the technical problems described in the background technology, the present invention adopts following technical scheme: the free forging process of fan-shaped plate forging, it is characterized in that, it comprises the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02B21J1/00
CPCB21J5/02B21J1/003
Inventor 吕美莲刘春超冯宝倪吕俊吕诚
Owner ANHUI RUIJIE FORGING
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