What are the application scenarios of machined parts
Information summary：Machining components (parts made through machining processes such as turning, milling, drilling, grinding, boring, stamping, forging, etc.) are the core foundation of modern industrial production, and their application scenarios cover almost all industrial fields that require precision assembly, mechanical performance support, or functional implementation. The core logic is that as long as the sce
Machining components (parts made through machining processes such as turning, milling, drilling, grinding, boring, stamping, forging, etc.) are the core foundation of modern industrial production, and their application scenarios cover almost all industrial fields that require precision assembly, mechanical performance support, or functional implementation. The core logic is that as long as the scene requires "customized size, stable mechanical performance, and precise fit", it cannot do without machined parts. The following are core application scenarios segmented by industry, highlighting professionalism and practicality based on specific component types and selection logic:
1、 Mechanical Manufacturing and General Equipment (Core Application Fields)
1. General mechanical core components
Typical components: gears, shafts (drive shaft, output shaft), housing (gearbox housing, motor end cover), flanges, bearing seats, connecting rods, crankshafts, lead screws, nuts;
Application scenarios: General equipment such as machine tools, water pumps, fans, compressors, reducers, generators, and electric motors;
Selection logic: Machining ensures dimensional accuracy (tolerance ≤± 0.01mm) and positional tolerance (such as coaxiality and parallelism), meeting the precision fit between components; By heat treatment and machining, the hardness (HRC50-60) and wear resistance are improved to adapt to high-speed rotation, heavy load and other working conditions.
2. Customized parts for specialized machinery
Typical components: roller, rapier, and frame of textile machinery; The drum, pressure roller, and gear set of printing machinery; Cutting blades and conveyor rollers for packaging machinery;
Application scenarios: specialized production lines for textile, printing, packaging, food processing, etc;
Selection logic: Customize processing according to the special needs of the industry (such as high straightness required for textile machinery rollers and mirror polishing required for printing rollers), ensuring the stability of equipment operation and product accuracy (such as uniformity of fabric weaving and clarity of printed patterns).
2、 Automobile manufacturing and transportation
1. Automotive core system components
Typical components: pistons, crankshaft, camshaft, valves of the engine; Gears, synchronizers, and output shafts of the gearbox; Suspension arms, steering knuckles, brake discs, and wheel hub bearings of the chassis;
Application scenarios: Complete vehicle manufacturing of fuel vehicles and new energy vehicles;
Selection logic: Machining accuracy directly affects power transmission efficiency (such as gear meshing accuracy) and driving safety (such as brake disc flatness); Reducing component weight through precision machining (such as aluminum alloy machined parts reducing weight by 15% -20%) is in line with the trend of lightweighting.
2. Rail Transit and Ships
Typical components: high-speed rail bogies, axles, gearboxes; Ship propeller shafts, engine room gears, and deck fasteners;
Application scenarios: high-speed rail, subway, ships, aerospace equipment;
Selection logic: Adapt to extreme working conditions (high and low temperatures, vibration, seawater erosion), and ensure high strength (tensile strength ≥ 800MPa) and corrosion resistance (such as stainless steel machined parts+surface treatment) through machining to ensure long-term operational reliability.
3、 Aerospace and Defense Industries
1. Aerospace precision components
Typical components: turbine blades, combustion chambers, and landing gear structural components of aircraft engines; Satellite brackets, connectors, and sensor housings;
Application scenarios: civil aircraft, military aircraft, satellites, rockets, etc;
Selection logic: Using high-quality materials (titanium alloy, high-temperature alloy) and five axis linkage machining to ensure high precision (tolerance ≤± 0.005mm) and extreme environmental adaptability (such as high temperature, high pressure, vacuum), meeting the stringent reliability requirements of aerospace.
2. Core components of national defense and military industry
Typical components: gun barrel, gun barrel, missile shell of weapon equipment; Radar antenna base and gear transmission system;
Application scenarios: military equipment such as firearms, artillery, missiles, radars, etc;
Selection logic: Improve impact resistance and wear resistance through precision machining and strengthening treatment (such as nitriding and quenching), ensuring stability and safety in harsh battlefield environments.
4、 Electronic appliances and precision instruments
1. Structure and functional components of electronic devices
Typical components: middle frame of mobile phone/computer, heat sink, interface socket; Horizontal beams and columns of server cabinets; The crankshaft and valve plates of the air conditioning compressor;
Application scenarios: consumer electronics, industrial electronics, household appliances;
Selection logic: Machining achieves miniaturization and lightweighting (such as precision milling of aluminum alloy parts), meeting the compact design requirements of electronic devices; High surface accuracy (Ra ≤ 0.8 μ m), convenient for subsequent surface treatments such as electroplating and anodizing.
2. Core components of precision instruments
Typical components: pointer shaft, dial, sensor probe of instruments and meters; Internal structural components and transmission rods of medical equipment (ventilators, MRI machines);
Application scenarios: industrial testing instruments, medical equipment, scientific research equipment;
Selection logic: The dimensional tolerance is extremely small (± 0.001- ± 0.005mm), meeting the requirements of precision assembly; Stable mechanical properties, strong fatigue resistance, and adaptability to long-term continuous operation (such as 24-hour working mode of medical equipment).
5、 Construction and Engineering Machinery
1. Key components of construction machinery
Typical components: excavator arm, connecting rod, and pin shaft; The hook, drum, and gear of the crane; The transmission shaft and hydraulic valve block of the loader;
Application scenarios: Excavators, cranes, loaders, bulldozers and other engineering equipment;
Selection logic: Through thick plate machining and welding reinforcement, the ability to resist heavy loads and impacts is improved (such as using quenching and tempering treatment+precision grinding for the pin shaft, with a hardness of HRC45-50); High dimensional accuracy ensures the sealing performance and transmission efficiency of hydraulic and transmission systems.
2. Building hardware and structural components
Typical components: connectors and embedded parts for glass curtain walls; Hinges and lock cores for doors and windows; Flanges and bolts of steel structures;
Application scenarios: construction, door and window manufacturing, steel structure engineering;
Selection logic: Machining ensures dimensional consistency and facilitates standardized installation (such as aperture tolerance of curtain wall connectors being ≤± 0.1mm); Surface treatment (galvanizing, chrome plating) improves corrosion resistance and adapts to outdoor humid environments.
6、 Energy and Environmental Protection Equipment
1. Core components of energy equipment
Typical components: photovoltaic bracket connectors, gearbox; Main shaft, hub, and gear of wind power equipment; Pipeline flanges and valve cores for nuclear power equipment;
Application scenarios: photovoltaic power plants, wind farms, nuclear power plants, hydropower plants;
Selection logic: Adapt to long-term outdoor operation of new energy equipment (such as wind turbine spindles requiring fatigue and corrosion resistance); Precision machining ensures energy transmission efficiency (such as the meshing accuracy of gearbox gears).
2. Customized components for environmental protection equipment
Typical components: mixing shaft and filter frame of sewage treatment equipment; Pipelines, flanges, and nozzles of exhaust gas treatment equipment;
Application scenarios: sewage treatment plants, exhaust gas purification equipment, garbage treatment equipment;
Selection logic: Using corrosion-resistant materials (stainless steel, fiberglass) for machining, suitable for harsh working conditions such as acid, alkali, and humidity; The structural design improves the processing efficiency of the equipment through machining optimization (for example, the aperture accuracy of the nozzle affects the spray effect).
7、 Furniture and daily hardware
1. Furniture structural components
Typical components: metal frames and connectors for office desks and chairs; Guide rails and lock cores of filing cabinets; Metal reinforcement strips and hinges for solid wood furniture;
Application scenarios: office furniture, civilian furniture, hotel furniture;
Selection logic: Machining ensures dimensional accuracy, making furniture assembly more secure (such as the straightness of guide rails to ensure smooth sliding of drawers); Smooth surface, balancing practicality and aesthetics.
2. Daily hardware components
Typical components: valve core and body of faucet; The blade and pivot pin of scissors; The lock body and tongue of the door lock;
Application scenarios: kitchen and bathroom hardware, daily tools, security equipment;
Selection logic: By precision machining, the user experience (such as the sealing of faucet valve cores) and durability (such as the wear resistance of lock tongues) are improved to meet daily high-frequency usage needs.
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