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Forging, punching and quenching integrated forming process and device

A molding process and integrated technology, applied in molding tools, metal processing equipment, manufacturing tools, etc., can solve the problems of low temperature resistance and durability, reduced workpiece hardness, easy brittle cracking, etc., to increase temperature resistance, small workpiece deformation, Even pressure effect

Active Publication Date: 2019-03-08
马继荃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The workpiece material after quenching is easy to be brittle. In order to reduce the brittleness of the workpiece material, the traditional way is to quench the workpiece after hot pressing, and then temper or normalize. Although the brittleness of the processed workpiece is reduced, the workpiece The hardness is also reduced, and the temperature resistance and durability are low

Method used

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  • Forging, punching and quenching integrated forming process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A forging press-quenching integrated forming process, the steps of which are:

[0027] (1) Place a workpiece with a thickness of 20cm in the forming die on the punch, and the laser will heat and calcinate the workpiece, and the heating temperature is lower than the melting point of the workpiece material by 50°C;

[0028] (2) After the heating is completed, stop the heating device and use an area of ​​100cm 2 The punch punches the workpiece, and the standard time for stamping is T 1 ;

[0029] (3) After the stamping is completed, control the laser to heat and calcin the workpiece again, alternate heating and calcination and stamping, until the workpiece is punched out in the forming die, and the punching time required to penetrate the workpiece is T = 2×1×T 1 = 2T 1 ;

[0030] (4) Start the water cooling device to cool and quench the formed workpiece, and at the same time control the punch to punch the formed workpiece, and control the amount of water spray during spraying. The ...

Embodiment 2

[0033] A forging press-quenching integrated forming process, the steps of which are:

[0034] (1) Place a workpiece with a thickness of 10cm in the forming die on the punch, and the electric heater heats and calcines the workpiece, and the heating temperature is lower than the melting point of the workpiece material by 100°C;

[0035] (2) After the heating is completed, stop the heating device and use an area of ​​100cm 2 The punch punches the workpiece, and the standard time for stamping is T 1 ;

[0036] (3) After the stamping is completed, control the laser to heat and calcine the workpiece again, heating and calcination alternately with stamping, until the workpiece is punched out in the forming die, and the punching time required for heating and punching through the workpiece is T=1×1×T 1 = T 1 ;

[0037] (4) Start the water cooling device to cool and quench the formed workpiece, and at the same time control the punch to stamp the formed workpiece. When spraying, the amount of ste...

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Abstract

The invention discloses a forging, punching and quenching integrated forming process and a device. A workpiece is placed in a forming die on a punching press, and a heating device heats and calcines the workpiece; after the heating is completed, the heating device is stopped, and a punch punches the workpiece; the heating calcining and the punching are carried out alternately till the workpiece ispunched thoroughly and formed in the forming die; a cooling device is started to cool and quench the formed workpiece, meanwhile, the punch is controlled to punch the formed workpiece, so that the heat and pressure accumulated in the workpiece are released in the quenching process; and the quenching and the punching are carried out repeatedly till the workpiece is cooled and formed. According tothe process, the increasing and the decreasing of the temperature and the acting force of the punching are combined together, and the binding force among atoms is increased through comprehensively utilizing the temperature change generated by the forging, the punching and the quenching and the punching strength; the forging, the punching and the quenching are carried out repeatedly, the pressure of the workpiece is uniform, the structure among molecules is compact, the binding force is increased, the deformation amount of the workpiece is small, and the temperature resistance, the abrasion resistance and the durability of the workpiece can be increased to the largest extent.

Description

Technical field: [0001] The invention belongs to the technical field of temperature and pressure control in workpiece processing, and particularly relates to a forging, pressing, quenching, and integrated forming process and equipment. Background technique: [0002] Forging, quenching, and stamping are three commonly used processing methods in the field of materials and machinery manufacturing. Forging, quenching, and stamping are generally performed separately, and each has its own shortcomings. Forging In order to improve the processing quality of the workpiece, it is necessary to continuously increase the external pressure of the workpiece. In order to obtain greater external pressure, a larger forging press needs to be manufactured. Therefore, the greater the forging pressure, the more difficult it is to increase the pressure. After quenching, the workpiece material is easy to brittle. In order to reduce the brittleness of the workpiece material, the traditional method is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/02B21D37/16
CPCB21D22/022B21D37/16
Inventor 樊岁章马继荃
Owner 马继荃
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