Machining surface treatment


machining surface treatment:

1. Chemical polishing: a process method in which the surface of the workpiece undergoes chemical or electrochemical changes under the action of abrasives and chemical solvents, so as to achieve the purpose;

2. Cationization: A method of coating an oxide film containing metal cations on the surface of a workpiece and oxidizing it into a non-ferrous metal layer under appropriate conditions. Metal anoidation processes include electrolytic oxidation, chemical oxidation and plasma oxidation.

3. Sandblasting: a process method that uses mechanical methods to produce fine sand-like roughness on the surface of the workpiece to improve its surface friction characteristics;

4. Electroplating: The process method of coating a layer of metal film on the surface of metal or alloy by chemical or electrolytic methods. Electroplating is a widely used and large-scale surface treatment technology in hardware processing.

The manufacturing accuracy of fine machining is high, and the surface of the product is smooth and clean in the process of use, that is to say, the fine machining produced by the production and processing can save a lot of machining work, and can be directly used in life. There will be many gray-black circular shallow pits on the surface of the fine machining, and the equipment fills the pits with this slag material before cleaning, which will directly affect the quality of our castings.

fine machining is the use of a cast iron material, its comprehensive properties are close to steel, it is based on its good performance, has been successfully used to cast some parts with complex stress, strength, toughness and requirements. Ductile iron has developed into a widely used cast iron material second only to gray cast iron. so-called

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Machining installation sequence and process

Determine the cutter point and tool change point; once determined, it is not suitable for substitution.


Machining technology heat treatment process

With the development of aerospace, industry, microelectronics industry, modern and bioengineering technology, the demand for / detailed mechanical parts (feature size in the micron to millimeter level) is increasingly urgent.


Details of machining, forging and casting

In the process of using detailed mechanical processing, its mechanical properties are better than cast iron, but the cast iron properties of this material is poor, the melting point is higher than other materials.


Machined surfaces and solidification knowledge

fine machining processing is convenient, the use of saving its materials, in the process of operation can save its resources, many casting methods can only cast relatively simple castings, and another advantage of fine machining is that complex castings can be cast.


Machining production process

the role of additives in the process of fine machining will no longer be limited to helping the shell quickly build up the wet strength, but also improve the development of its investment casting quality, the surface quality of the silica sol shell is good and its high temperature.


Machining process and technology

fine machining can be divided into upper and lower die methods, which can be completed through comprehensive processes such as planing, milling, etching, turning, and EDM. The size and pit shape of the fine machining are consistent with the edge of the product, mainly because the wax die is mainly used for industrial wax forming, so its melting point is not high and the hardness is not high when selecting, and the aluminum alloy material with relatively cheap and light weight is used as a mold.