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Forging is a manufacturing process that involves the use of local compressive forces to shape metal. Hit with a hammer (usually an electric hammer) or a mold. Forging is usually classified according to the temperature at which it is performed: cold forging (a kind of cold working), warm forging or hot forging (a kind of hot working). For the latter two, the metal is usually heated during forging. The weight of forged parts ranges from less than one kilogram to hundreds of metric tons. Since the industrial revolution, forged parts have been widely used in machinery and machinery requiring high strength; such forgings usually require further processing (such as machining) to make finished products. Today, forging has become a major industry in the world.
The following knowledge points are listed below:
What is forging?
Advantages of forging parts
Application of forging parts
Forging is one of the oldest known metal processing techniques. Traditionally, forging was performed by blacksmiths using hammers and anvils, although the introduction of hydraulic power into the production and processing of iron in the 12th century allowed the use of large jumping hammers or power hammers, thereby increasing the amount and size of iron.
Advantages of open die forging:
Opportunities to reduce gaps
Better fatigue resistance
Continuous Valley Logistics
Finer particle size
Better reaction to heat treatment
Mechanical properties, ductility and impact resistance, higher reliability
These forging parts are impact resistant, wear-resistant, maintain strength at high temperatures, and are capable of withstanding rapid heating and cooling cycles.
The strength, reliability and economy of forged parts make them ideal for important automotive and truck applications. Forgings usually appear at impact and stress points, such as axles, kingpins, axles and axles, torsion bars, ball studs, idler arms, steering arms and steering arms. Another common application for powertrains is the forging of connecting rods, drive shafts and gears, differentials, drive shafts, clutch hubs and universal joints. Although usually forged from carbon steel or alloy steel, other materials (such as aluminum and micro alloy steel) have also made great progress in forging automotive and truck applications.
Strength, toughness and economy are also important in farm tools. In addition to engine and gearbox components, key forgings subject to impact and fatigue also include gears, shafts, levers and main shafts, connecting rod ends, harrow teeth and cultivator shafts.
Because forgings have excellent mechanical properties and no porosity, forgings are usually associated with high pressure applications in the valve and pipe industry. Corrosion and heat resistant materials are used for flanges, valve bodies and stems, tees, elbow reducers, saddles and other accessories. Oilfield applications include rock drill bits, drilling hardware, and high-pressure valves and accessories.
Forging has traditionally been a mark of the quality of hand tools and hardware. Pliers, hammers, sledges, wrenches and gardening tools, as well as wire rope clamps, sockets, hooks, turnbuckles and eye bolts are common examples. Surgical and dental instruments are also often forged. Special hardware for power transmission and distribution lines, such as base covers, suspension clamps, sockets and brackets, are usually forged to improve strength, reliability and corrosion resistance.
Off-road equipment/rail strength, toughness, workability and economy are the reasons for the many uses of forging in off-highway and heavy construction equipment, mining equipment, and material handling applications. In addition to engine and gearbox parts, forgings are also used for various gears, sprockets, levers, shafts, spindles, ball joints, hubs, rollers, forks, axle beams, bearing seats and connecting rods.
Large forgings often appear in industrial equipment and machinery used in steel, textile, paper, power generation and transmission, chemical and refining industries. Typical forging configurations include rods, blanks, blocks, connecting rods, cylinders, discs, elbows, rings, T-shapes, shafts and sleeves.
From rifle triggers to nuclear submarine drive shafts, forged parts can be found in almost all defense tools. Heavy tanks, missiles, armored personnel carriers, artillery shells and other heavy artillery are common applications of forged parts related to national defense.
The high strength-to-weight ratio and structural reliability can beneficially affect the performance, range and payload capacity of the aircraft. The forgings are made of various iron, non-ferrous and special alloy materials and are widely used in commercial aircraft, helicopters, piston engine aircraft, military aircraft and spacecraft. The versatility of the size, shape and performance of the forgings makes them ideal parts. Some examples include bulkheads, wing roots and spars, hinges, engine supports, brackets, beams, axles, undercarriage cylinders and struts, wheels, and Movable seat and disc and clasp. In jet turbine engines, iron-based, nickel-based and cobalt-based superalloys are forged into components such as disks, blades, vanes, couplings, manifolds, rings, chambers, and shafts.