Mechanical processing technology Heat treatment process


Release time:

2024-04-30

With the development of aerospace, industry, microelectronics industry, modern and biological engineering technology, the demand for/detailed mechanical parts (feature size in micron to millimeter level) is increasingly urgent. The specificity of its structure and shape, the diversification of parts and materials, and the accuracy of size and surface quality have become the obvious characteristics of high-precision mechanical parts and their micro-devices and equipment, and the requirements in terms of use function, material characteristics, structure and shape, and sex are also getting higher and higher.

With the development of aerospace, industry, microelectronics industry, modern and biological engineering technology, the demand for/detailed mechanical parts (feature size in micron to millimeter level) is increasingly urgent. The specificity of its structure and shape, the diversification of parts and materials, and the accuracy of size and surface quality have become the obvious characteristics of high-precision mechanical parts and their micro-devices and equipment, and the requirements in terms of use function, material characteristics, structure and shape, and sex are also getting higher and higher.

With the rapid development of modern fine machining, fine machining technology rapid development, slowly emerged a lot of fine machining technology, such as micro fine machining technology, fast forming technology, super machining technology.

Inserting heat treatment in the meticulous machining process at the right time can make the cold and hot processes match well and avoid deformation caused by heat treatment. The arrangement of heat treatment, according to the purpose of heat treatment, can generally be divided:

1. The purpose of preparatory heat treatment is to remove the internal stress generated during the manufacturing process of the blank, improve the cutting performance of metal materials, and prepare for the later heat treatment. There are quenching and tempering, annealing, normalizing, etc., which are generally arranged before and after rough machining. Arranged in the rough machining before, can improve the cutting performance of the material; arranged in the rough machining, is conducive to the removal of residual internal stress.

2, heat treatment should generally be arranged in rough machining, semi-finishing, before and after finishing. Heat treatment with large deformation, such as carburizing and quenching, quenching and tempering, should be arranged before finishing to correct the deformation of heat treatment during finishing; heat treatment with small deformation, such as nitriding, can be arranged after finishing.
 

Related News

Jinzi company will participate in the international rail transit technology exhibition in Berlin, Germany

Jinzi Company will participate in the International Rail Transit Technology Exhibition in Berlin, Germany. Name of Exhibition: 2016 International Rail Transit Technology Exhibition in Berlin, Germany. Time of Exhibition: September 20-23, 2016. Place of Exhibition: Berlin International Exhibition Center, Germany. Hall No.: HALL3.1 Booth No.: 413

CIRC2021-China International Rail Transit Exhibition_Conference Opens in Shanghai in October

International Rail Transit Exhibition, International Rail Transit Exhibition, sponsored and participated by China Local Railway Association, theme. Covers the international rail transit exhibition, intercity railway and international rail transit exhibition and other fields of scientific and technological innovation theme, industry event, invited to participate

Machining installation sequence and process

To arrange the detailed machining sequence, we need to follow the basic principles of "surface before hole" and "coarse before fine.

Mechanical processing technology Heat treatment process

With the development of aerospace, industry, microelectronics industry, modern and biological engineering technology, the demand for/detailed mechanical parts (feature size in micron to millimeter level) is increasingly urgent. The specificity of its structure and shape, the diversification of parts and materials, and the accuracy of size and surface quality have become the obvious characteristics of high-precision mechanical parts and their micro-devices and equipment, and the requirements in terms of use function, material characteristics, structure and shape, and sex are also getting higher and higher.

Machining details, forging and casting

In the process of meticulous machining, its mechanical properties are better than cast iron, but the cast iron properties of this material are poor, and the melting point is higher than other materials. There are many problems that need to be paid attention to in the process of processing, mainly because the flow performance of molten steel is relatively poor. In the process of processing, in order to prevent insufficient pouring or cold insulation from meticulous machining, the wall thickness of meticulous machining cannot be less than 8mm. The structural force of the gating system is relatively simple, in the process of using the equipment in the cross-sectional size of cast iron is large, so in the process of processing can also be used in the hot casting mold or dry casting mold.