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Surface micro-morphology processing method of gear composite plastic forming die

A technology of plastic forming and processing methods, which is applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., to achieve the effects of improving metal flow, increasing die life, and reducing costs

Active Publication Date: 2019-01-08
南京江峰新能源科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent 201110148422.X discloses a textured self-lubricating treatment method for metal plastic forming molds, in order to realize the optimal distribution of lubricating properties on the surface of the mold, improve the flow of materials and the lubrication and anti-wear properties of the mold, and improve the life of the mold and product quality , this method cannot solve the problem of incomplete filling of the upper and lower corners of the precision forging die during the forming process
However, this method does not specifically address various problems in the forming process of precision forging dies, and proposes specific solutions

Method used

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  • Surface micro-morphology processing method of gear composite plastic forming die
  • Surface micro-morphology processing method of gear composite plastic forming die
  • Surface micro-morphology processing method of gear composite plastic forming die

Examples

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example 1

[0055] Example 1: Multi-station hot precision forging-cold extrusion plastic forming of spur gears

[0056] Laser processing equipment: SPI fiber laser.

[0057] The concrete implementation of the present invention its steps are:

[0058] The first step: provide SPI fiber laser. Determine the basic parameters of the laser: laser power 50W, pulse width 5000 .

[0059] The second step: Determine the maximum forming pressure area of ​​the multi-station precision forging die and cold extrusion die, that is, the tooth top and tooth root of the precision forging die.

[0060] The third step is to drive the laser equipment, adjust the laser parameters such as laser power density, pulse width, and pulse frequency, and adopt the laser processing technology of "single pulse at the same point multiple times" in the lower die of the pier rough station of the multi-station hot die forging die Micro-pit 1 is processed at the place with the highest forming pressure (tooth shape), and th...

example 2

[0066] Example 2: Multi-station Hot Precision Forging-Cold Extrusion Plastic Forming of Spur Bevel Gears

[0067] The first step is to provide SPI fiber laser. Determine the basic parameters of the laser: laser power 50W, pulse width 5000 .

[0068] The second step is to determine the area with the highest forming pressure during the forming process of the multi-station precision forging die, that is, the tooth top and tooth root of the precision forging die.

[0069] The third step is to drive the laser equipment and adjust laser parameters such as laser power density, pulse width, and pulse frequency. Using the "single pulse at the same point with multiple intervals" laser processing technology, the shape of the micro-pit 1 with a diameter of 90 is processed at the point where the forming pressure of the lower die is the highest (tooth shape) at the pier rough station of the multi-station hot die forging die. , depth 40 , Density 10%. In addition, nanometer molybdenu...

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Abstract

The invention relates to a surface micro-morphology processing method of a gear composite plastic forming die. The surface micro-morphology processing method comprises the following step that S1, a large area of the forming pressure of the mold in the machining process is determined, and a micro-pit is machined in the area where the forming pressure is larger; S2, the micro-pit with nanometer molybdenum disulfide is filled. The micro-pit morphology is based on the forming mechanism of the mold, the surface micro-textures processed by the maximum forming pressure area are selected, a lubricantcan be effectively provided under the condition of boundary lubrication and lean oil, the mechanical performance and the friction lubricating performance of the precision forging gear in the forming process are improved, the abrasion amount of the precision forging die is reduced, so that the service life of the die is prolonged; the micro-morphology processing method is efficient, precise and controllable, pollution-free to the environment, low in cost and the like.

Description

technical field [0001] The invention relates to the field of molds, in particular to a method for treating the surface microtopography of a gear composite plastic forming mold. Background technique [0002] With the continuous development of industrial technology, automotive, construction machinery, rail transit and other fields have put forward precision and high efficiency requirements for gear products and their forging production. It is the current development trend in the field of plastic processing to develop high-quality, high-efficiency, energy-saving and material-saving plastic forming new processes to achieve "net shape" and "near-net shape". Traditional and single gear hot precision forging technology, due to high temperature, low deformation resistance and good plasticity, the forming force is significantly reduced. However, due to the high temperature of hot precision forging, the material is prone to oxidation and the surface quality of the forging is poor. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J13/02B21J3/00
CPCB21J3/00B21J13/02
Inventor 解玄刘建芳华希俊尹必峰张加力朱翊航
Owner 南京江峰新能源科技有限公司
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