Which components require forging process

　　Forging is a processing method that involves hammering and extruding metal billets to produce plastic deformation, in order to obtain the desired mechanical properties, shape, and size. It can eliminate defects such as casting porosity that occur during the smelting process of metals, optimize the microstructure, and thus significantly improve the strength, toughness, and fatigue life of parts.

　　Here are some typical components and fields that require forging technology:

　　1、 Aerospace and Military Industries

　　The strength, reliability, and lightweight requirements for parts in this field have been perfected, and forging is an indispensable process to ensure their performance.

　　Key components of aircraft engines, such as turbine discs, compressor discs, turbine blades, engine shafts, etc. These components work in extreme environments of high temperature, high pressure, and high speed, and must have excellent heat resistance, creep resistance, and extremely high fatigue strength. Precision forging can precisely control its grain flow and microstructure, meeting demanding performance requirements.

　　Aircraft structural components: such as landing gear (especially main struts), wing beams, fuselage frame, docking joints, etc. These large load-bearing structural components bear enormous alternating loads during flight, and must be forged to obtain continuous and uniform metal flow lines, thereby possessing extremely high strength and impact resistance, which is the core guarantee of flight safety.

　　Military products: gun barrels, gun barrels (forged with dense metal structures), armor plates, missile bodies, rocket engine casings, etc., all require forging to meet the very high requirements for penetration, protection, and load-bearing.

　　2、 Power equipment and automotive manufacturing field

　　This is one of the widely used and common fields of forging technology.

　　Core of power system:

　　Crankshaft and connecting rod: Core moving components in engines that withstand complex alternating stresses. Forging can greatly improve their fatigue strength and wear resistance.

　　Camshaft: a key component that controls valve opening and closing, requiring high hardness and wear resistance.

　　Transmission and safety components:

　　Gearbox gears and transmission shafts: Forged gears have better tooth root strength and wear resistance; The transmission shaft requires high torque carrying capacity.

　　Steering joint, wheel hub, constant velocity universal joint: These chassis components are directly related to the handling and safety of the vehicle, and the forging process provides superior impact toughness and fatigue life.

　　3、 In the field of heavy machinery and tools

　　Key components of heavy machinery, such as rolling mill rolls, large generator spindles, drill rods and collars for oil drilling, and large crankshafts for ship engines. These components have huge dimensions, harsh working environments, and can withstand heavy loads and fatigue stresses. Forging is a necessary means to ensure their integrity and high performance.

　　Tools and Cutting Tools:

　　Hand tools: Hammer heads, wrenches, axes, pliers, etc. Their working parts require forging to obtain high hardness, high wear resistance, and good toughness, making them less prone to rolling, cracking, or deformation during use.

　　Mold: Many hot work molds (such as die-casting molds and forging dies) also require forging of the mold blank itself to break down the carbides in the as cast structure, making them evenly distributed, thereby greatly improving the heat fatigue resistance and overall service life of the mold.

　　4、 Energy and Chemical Industry

　　Power generation equipment: such as turbine and gas turbine rotors, blades, pressure vessel bodies and main pipelines of nuclear power plants. These devices operate under high temperature and high pressure for a long time, requiring extremely high purity, uniformity, and comprehensive mechanical properties of materials, and must use large-scale forging technology.

　　High pressure valves and flanges: In the petrochemical industry, high-pressure pipeline systems used to transport flammable, explosive, and toxic media typically use forged parts for valve bodies, flanges, and fittings to ensure no leakage and safety under extreme pressure.

　　In summary, critical metal components that require high stress, alternating loads, impacts, or extreme working environments (such as high temperature and high pressure) typically require forging processes to ensure dense internal structure, continuous flow lines, and reliable performance.