Mechanical parts products, six common manufacturing processes
1、Machining process: Machining is a process that uses metal machining and cutting tools to remove excess metal on the workpiece (blank) on the machine tool, so that the shape, size and surface quality of the workpiece meet the design requirements.
Equipment: CNC, lathes, milling machines, grinding machines;
Features: Processing single-piece products, high processing precision, degree of freedom, etc., mechanical processing has better solved the problem of complex, precise, small batch, and multi-variety parts processing.
Commonly used materials: carbon steel, stainless steel.
2、Stamping process: Stamping is a forming process that relies on pressure and molds to apply external forces to materials to cause plastic deformation or separation, thereby obtaining workpieces of required shape and size.
Equipment: punch press (single punch, continuous punch)
Features: Stamping parts have the characteristics of thin, uniform, light and strong. Stamping can produce workpieces with ribs, ribs, undulations or flanges that are difficult to manufacture by other methods to improve their rigidity; the stamping process has high production efficiency, short production cycle, low cost, and a large range of processing sizes. Easy to operate and so on.
Material Material: carbon steel, stainless steel.
3、Foam extrusion process: The foam extrusion process refers to the process in which various temperature-controlled materials enter the foamer according to the formula, and the raw materials are foamed into a certain shape of foam through physical and chemical changes.
Features: The products are diverse and can be processed into properties such as flame retardancy, oil resistance, aging resistance, and heat resistance; the mold is simple, the product is customized, and mass-produced.
Material: NBR, EPDM, PE, NR, silica gel, etc.
4、Precision casting process: The precision casting process uses wax to make a product model, and wraps a layer of refractory materials such as clay on the outside, hardens to form an integral shell, and heats the wax to melt and flow out, thereby obtaining a shell mold formed of refractory materials. Castings are obtained by pouring molten metal after firing.
Equipment: wax injection machine, melting furnace, etc.
Features: Diversified product shapes, such as shells, brackets and other irregularly shaped parts; product casting materials are not limited, all kinds of steel, stainless steel, aluminum alloy, etc.; high production flexibility, strong adaptability, can be applied to large quantities Production;
Commonly used materials: steel, stainless steel.
5、Die-casting process: Die-casting process is a kind of precision casting that uses high pressure to force molten metal into a complex-shaped metal mold.
Equipment: die-casting machine (zinc alloy die-casting, aluminum alloy die-casting)
Features: The product has a large proportion, good product strength, the mold can be used repeatedly, realizes automatic operation, greatly improves production efficiency and cost savings; can produce products with complex structures, and the accuracy can generally reach ±0.1mm; but additional processing is required , and surface treatment;
Commonly used materials: zinc alloy, aluminum alloy.
6、Injection molding process: Injection molding is a process of filling molten plastic liquid into a mold cavity by pressure to produce industrial parts with specific shape, size, function and quality.
Equipment: injection molding machine
Features: The product is light in weight and strong in corrosion resistance; the product can be used directly without additional processing technology; it is suitable for mass production, its production speed is fast, its efficiency is high, and its operation can be automated to reduce manufacturing costs;
Common materials: PA6, PA66, ABS, PC, etc.