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Forging parts
Forging parts
Forging parts
Forging parts
Forging parts
Forging parts
Product Detail

Forging parts

  • A metal forging piece is a workpiece or blank.
  • That is obtained by applying pressure to a metal billet to cause plastic deformation.
  • Thereby achieving a specific shape, size and excellent internal structure.
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    How to be processing for forging?

    • Forging is the process of heating metal to a plastic state (solid but malleable),
    • And then applying pressure with a forging machine or hammer to cause it to deform,
    • Similar to the “forging” technique.

     

    What has the advantage for forging?

    • The metal structure of the forged parts is denser, the crystal grains are more closely arranged,
    • And their strength, toughness and impact resistance are all better than those of the cast parts.
    • Under the same material conditions, the tensile strength of the forged parts can be increased by about 26%.

     

    What time choose forging is better?

    • The production cost is high and the equipment requirements are strict.
    • This type of part is suitable for those that can withstand heavy loads and impacts (such as gears, crankshafts, and connecting rods).

     

    The core steps: cutting, heating, shaping, heat treatment and inspection.

    Step Description
    Forging billet cutting The raw materials are cut into billets of specific weight and volume to ensure dimensional consistency.
    Forging billet heating Heat the billet to the forging temperature to reduce the resistance to deformation and enhance the plasticity of the metal.
    Forming processing Utilizing forging equipment to cause plastic deformation in the metal, thereby obtaining the desired shape.
    Edge trimming and punching Removing excess burrs or punching holes after forging
    Heat treatment Eliminate forging stresses, improve mechanical properties and cutting performance
    Cleaning and inspection Remove the surface oxide scale, and conduct visual inspection, hardness testing and non-destructive testing.

     

    Forging method:

    Free forging The process is relatively simple, with main procedures including upsetting, drawing, and punching, suitable for single-piece or small-batch production.
    Die forging The process is longer, usually involving multiple steps such as blanking, pre-forging, and final forging, suitable for mass production.
    Special forging Such as rolling rings, roll forging, etc., suitable for circular or special-shaped parts.

     

    Need consider the key points:

    Heating control It is necessary to accurately control the initial and final forging temperatures to prevent oxidation, overheating, over-burning.
    Process simulation Modern forging often uses numerical simulation to optimize the process and predict the temperature field and stress field.
    Post-processing Depending on the material, specific heat treatment processes (such as: solution treatment and aging treatment may be involved).

     

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    Die casting main feature: Die casting is a metal casting process that involves applying high pressure to molten metal within a mold. The main difference of die casting from other casting methods lies in the high pressure and high speed. Die-cast parts: complex shapes, thin walls, high precision, and a smooth surface with high dimensional consistency. The molds are typically made from stronger alloys, and this process is somewhat similar to injection molding. Which materials are suitable for die casting? Most die-cast parts are quite rare, but it is still feasible. Based on the different metal materials and applications, die castings can be classified as copper die castings, zinc die castings, aluminum die castings, etc. Used for die casting mainly material: zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys. The more special die-casting metals: ZAMAK, aluminum-zinc alloys, And the standards of the American Aluminum Association: AA380, AA384, AA386, AA390, and AZ91D magnesium. The advantages and shortcoming of die-casting: Advantages the castings have excellent dimensional accuracy. Shortcoming The main drawback of die casting is its high cost. The equipment for die casting, as well as the molds and related components, are relatively expensive compared to other casting methods. Therefore, it is more economical to produce a large quantity of parts when manufacturing die castings. The processing of die-cast parts mainly steps: Mold preparation, filling, injection, sand removal and post-treatment. Step Specification Mold Preparation During the preparation process, a lubricant needs to be sprayed into the mold cavity. The lubricant not only helps control the temperature of the mold but also facilitates the removal of the castings. Filling and Injection After closing the mold, high pressure is used to inject the molten metal into the mold. The pressure range is approximately between 10 and 175 megapascals. Once the molten metal is fully filled, the pressure will remain constant until the casting solidifies. Sand removal The pusher rod removes all the castings and separates the residues, including the mold opening, risers, gates, and burrs. This process is usually accomplished by pressing the castings through a specially designed finishing mold; Other methods include sawing and grinding. Post-processing During the production process of die-cast parts, problems such as bubbles and burrs may occur, And there may also be residual mold sand and oxide scale. Therefore, after the die-cast parts are manufactured, post-processing work needs to be carried out, including grinding, polishing, spraying, electroplating and other processes. The purpose is to make the surface of the die-cast parts more beautiful, while improving their corrosion resistance and mechanical properties.

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    Forging parts

    Forging parts