Hardware precision machining metal parts refer to parts that are processed with high precision on metal materials to achieve specific dimensional accuracy, shape accuracy and surface quality requirements. Usually, its tolerance requirement is within 0.05mm, or even more strictly within 0.005mm, and is widely used in various high-end manufacturing industries.
Material
Steel: Iron alloys with a carbon content of 2%~4.3% are cast iron, and iron alloys with a carbon content of 0.03%~2% are generally steel. In Fe-C alloys, alloy elements such as Si, Mn, Cr, Ni, Mo, W, V, Ti, Nb, and B can also be added to form various alloy cast irons or alloy steels to improve the strength, hardness, wear resistance and corrosion resistance of steel.
Non-ferrous metals: such as aluminum alloys, copper alloys, titanium alloys, etc., have the characteristics of light weight, good conductivity, and strong corrosion resistance, and are widely used in aerospace, electronics, communications and other fields.
Processing Technology
Cutting: including turning, milling, drilling, grinding, etc., through the relative movement of the tool and the workpiece, the excess metal material is removed to obtain the required shape and size accuracy. For example, when manufacturing precision shaft parts, turning technology is often used to ensure its cylindricity and surface roughness.
Stamping: using the mold to apply pressure to the metal sheet on the press to make it plastically deformed, so as to obtain parts of the required shape and size. For example, some parts of the automobile body and the shell of electronic equipment are often manufactured by stamping technology, which has the advantages of high production efficiency and stable product quality.
Precision casting: a method of pouring liquid metal into the mold cavity, filling the cavity under the action of gravity or other external forces, and obtaining a casting after cooling and solidification. For parts with complex shapes that are difficult to manufacture by cutting or stamping, precision casting is an effective manufacturing method, such as aircraft engine blades.
Powder metallurgy: using metal powder or a mixture of metal powder and non-metallic powder as raw materials, and making parts through processes such as pressing and sintering. Powder metallurgy can produce parts with special properties, such as porous materials, high-hardness alloys, etc., which are widely used in automobile, machinery, electronics and other industries.
Metal injection molding: metal powder is mixed with a binder to make an injection material with good fluidity, which is injected into the mold cavity by an injection machine for molding, and then the final product is obtained through processes such as degreasing and sintering. This process is suitable for mass production of small, high-precision, and complex three-dimensional metal parts.
Special processing: including EDM, laser processing, electrolytic processing, ultrasonic processing, etc. These processing methods are mainly used to process some special materials or parts with special shape requirements, such as carbide tools, microporous parts in aerospace engines, etc.
Features
High precision: It can meet the high-precision requirements of various precision equipment and instruments for parts and ensure the performance and reliability of the equipment. For example, in electronic chip manufacturing equipment, some key metal parts have extremely high precision requirements, which can only be met through hardware precision processing.
High-quality surface: The surface quality of the processed parts is good and the roughness is low, which can improve the wear resistance, corrosion resistance and fatigue strength of the parts, and is also conducive to the assembly and use performance of the parts.
Complex shape processing capability: Various complex-shaped parts can be manufactured, such as parts with complex curved surfaces, thin-walled structures, tiny holes and other features, providing greater space for product design and innovation.
Mass production stability: In mass production, it can maintain high processing accuracy and quality stability, improve production efficiency and reduce production costs.
Application fields
Electronic information: such as metal shells, buttons, connectors, radiators and other parts in electronic products such as mobile phones, computers, and tablets, have extremely high requirements for dimensional accuracy and surface quality, and hardware precision processing is required to ensure the performance and appearance of the products.
Aerospace: Many metal parts in aircraft engines, wings, landing gear and other parts require high-precision processing to ensure their reliability and safety under extreme conditions such as high temperature, high pressure, and high speed, such as turbine blades and combustion chambers in aircraft engines.
Automobile Manufacturing: Components of key parts such as automobile engines, transmissions, chassis, such as crankshafts, connecting rods, pistons, valves, etc., need to be precisely processed to improve the power, economy and reliability of the car.
Medical devices: Some precision metal parts in medical devices, such as surgical instruments, artificial joints, dental implants, etc., have strict requirements on accuracy and surface quality, which are directly related to the treatment effect and life safety of patients.
Precision instruments and meters: Metal parts such as optical instruments, measuring instruments, and automatic control instruments require high-precision processing to ensure the accuracy and stability of the instruments, so as to meet the needs of various scientific research and industrial production.
Development trend
Intelligent processing: With the continuous development of intelligent manufacturing technology, hardware precision processing will increasingly integrate automation, digitalization and intelligent technologies, such as CNC machine tools, robots, artificial intelligence, etc., to achieve automated control, quality inspection and optimization of the processing process, and improve production efficiency and product quality.
Green and environmentally friendly processing: Under the background of increasingly stringent environmental protection policies, hardware precision processing will pay more attention to green environmental protection, adopt environmentally friendly processing technologies such as dry cutting and micro-lubrication cutting, reduce the use of cutting fluids, and reduce environmental pollution during processing.
High precision and miniaturization: With the continuous advancement of science and technology, the precision requirements for hardware precision processing will become higher and higher, and the size of parts will become smaller and smaller, moving towards miniaturization to meet the needs of electronic information, biomedicine and other fields for tiny precision parts.
Multidisciplinary integration: Hardware precision processing will be deeply integrated with multiple disciplines such as material science, physics, and chemistry, and new processing technologies and materials will be continuously developed to improve the performance and quality of parts and expand their application areas.
Sejow (Shenzhen) Industrial Co., Ltd.
