Summary Of The Most Common Parts Machining Methods In China

Generally in hardware machining plants, most of the most commonly used materials for machining materials are stainless steel, copper, aluminum, iron, etc.Then the hardware machining factory then processes various precision parts according to the customer’s drawings or samples through lathe machining, milling machining, grinding machining, and polishing and other machinery. It is commonly known as hardware precision component machining, such as screws, motor shafts, car parts models, and mobile The power supply shell, cnc shell, etc. are processed by hardware precision parts.

Summary Of The Most Common Parts Machining Methods In China
Summary Of The Most Common Parts Machining Methods In China

Let’s talk about the most common hardware products: polishing, oxidation, passivation, machining, rolling, tapping, plating.

1. Polishing

The polishing principle means that the product is shiny and smooth through regular dissolution.
Polishing method: use mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece to obtain a bright, flat surface. The polishing method is to modify the surface of the workpiece by using polishing tools and abrasive particles or other polishing media. .

2. oxidation

Oxidation is divided into aluminum hard oxidation, die-cast aluminum oxidation, color oxidation, aluminum anodization, natural color oxidation and so on.

3. Passivation

The principle of passivation can be explained by the thin film theory. Passivation is due to the interaction between metal and oxidizing substances. When it is acting, a very thin, dense, good covering property, and a strong passivation on the metal surface is formed. Chemical film. Compared with the traditional physical sealing method, after passivation, it has the characteristics of absolutely not increasing the thickness of the workpiece and changing the color, improving the precision and added value of the product, and making the operation more convenient;


Cnc Machining is commonly used for turning, planing, milling, and grinding.

5. Rolling teeth

Hobbing is the use of two threaded sticks to squeeze the workpiece being processed, so that the surface of the part is pressed out of the thread.


Tapping is a die, which is used to process or repair external threads. It has internal threads and can be processed by hand or used on a threading machine.

7. Plating

Electroplating is divided into rack plating, barrel plating, continuous plating and brush plating, which are mainly related to the size and batch size of the parts to be plated.

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