The process of mechanical processing in Dalian usually includes the following steps:

The process of mechanical processing in Dalian usually includes the following steps:

1、 Design Planning

Before carrying out mechanical processing in Dalian, it is necessary to design and plan according to the requirements of the product. This step includes the following steps:

Product design: Determine the shape, size, material and other requirements of the product, and draw detailed design drawings.

Process planning: Based on product design, develop a reasonable processing route, including selecting processing methods, determining processing sequence, arranging processing equipment, etc.

2、 Raw material preparation

Prepare suitable raw materials according to design requirements. This step includes the following steps:

Material procurement: Select qualified raw material suppliers and purchase the required materials.

Material inspection: Inspect the purchased raw materials to ensure their quality meets the requirements.

Material pretreatment: According to the requirements of the processing technology, the raw materials are pretreated, such as cutting, forging, casting, etc.

3、 Processing operation

This is the core process of mechanical processing, including the following main processing methods:

Cutting: Cutting the workpiece with a cutting tool to remove excess material and achieve the desired shape and size. Common cutting methods include turning, milling, drilling, boring, grinding, etc.

Turning: mainly used for machining cylindrical workpieces such as shafts, discs, etc.

Milling: capable of processing various shapes such as flat surfaces, grooves, gears, etc.

Drilling: used to machine holes on workpieces.

Boring: mainly used for machining larger diameter holes and high-precision holes.

Grinding: Used to improve the surface quality and accuracy of workpieces.

Forming processing: Forming workpieces through molds or other tools, such as stamping, forging, casting, etc.

Stamping: Using punching machines and molds to process sheet metal, various shapes of parts can be manufactured.

Forging: By applying pressure to a metal material to deform it into the desired shape.

Casting: Injecting molten metal into a mold and cooling it to obtain the desired shape of the part.

Special processing: For materials or parts with complex shapes that are difficult to process using traditional processing methods, special processing methods such as electrical discharge machining, laser processing, ultrasonic processing, etc. can be used.

4、 Quality inspection

During and after the machining process, it is necessary to conduct quality inspection on the workpiece to ensure that it meets the design requirements. This step includes the following steps:

Dimensional measurement: Use measuring tools such as calipers, micrometers, coordinate measuring instruments, etc. to measure the dimensions of the workpiece, ensuring that its dimensional accuracy meets the requirements.

Surface quality inspection: Check the surface roughness, flatness, cracks, scratches and other defects of the workpiece.

Hardness testing: For some parts that require hardness, hardness testing is necessary to ensure that their hardness meets the requirements.

Non destructive testing: For some key components, non-destructive testing methods such as ultrasonic testing, radiographic testing, magnetic particle testing, etc. can be used to check for internal defects.

5、 Surface treatment

According to the requirements of the product, surface treatment is carried out on the workpiece to improve its corrosion resistance, wear resistance, aesthetics and other properties. Common surface treatment methods include:

Electroplating: Plating a layer of metal, such as chromium, nickel, zinc, etc., on the surface of the workpiece to improve its corrosion resistance and aesthetics.

Spray coating: Spray a layer of coating, such as paint, powder coating, etc., on the surface of the workpiece to improve its corrosion resistance and aesthetics.

Oxidation treatment: Oxidation treatment is applied to metals such as aluminum alloys to form an oxide film on their surface, improving their corrosion resistance and hardness.

Heat treatment: By heating and cooling the workpiece, its internal structure is changed to improve its hardness, strength, toughness, and other properties.

6、 Assembly and debugging

For some products composed of multiple parts, assembly and debugging are required. This step includes the following steps:

Part cleaning: Clean the processed parts to remove surface oil stains, impurities, etc.

Component assembly: Assemble each component according to design requirements to form a complete product.

Debugging and inspection: Conduct debugging and inspection on the assembled product to ensure that its performance meets the requirements. During the debugging process, some parameters may need to be adjusted, such as clearance, pressure, speed, etc.

7、 Packaging and transportation

Packaging the processed products to protect them from damage during transportation. The packaging method shall be selected according to the product characteristics and transportation requirements, such as wooden box packaging, carton packaging, foam plastic packaging, etc. At the same time, it is necessary to label the product, indicating information such as product name, specifications, quantity, production date, etc. Transport the packaged products to the customer's designated location.