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Extrusion parts
Extrusion parts
Extrusion parts
Extrusion parts
Extrusion parts
Extrusion parts
Product Detail

Extrusion parts

  • Extrusion parts are metal or non-metallic components formed by the extruded process through the mold cavities.
  • (applying pressure to the blank to cause plastic flow)
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    The core feature:

    Formation principle By using the punch or die boss to apply a huge pressure to the billet placed in the die cavity/extrusion barrel, the material is forced to undergo plastic flow under a triaxial compressive stress state, thereby filling the mold cavity or extruding it out to form.
    Applicable materials Primarily metals (aluminum, copper, steel and their alloys), and can also be used for non-metallic materials such as plastics, rubber, and graphite.
    Key features High material utilization rate (less cutting required), improved internal structure and mechanical properties, capable of manufacturing complex non-circular cross-sections (such as thin-walled, deep holes, and long rods).

     

    Classification and typical products:

    Hot extruded parts The billet is heated above the recrystallization temperature for forming.

    They are often used for large profiles, tubes, bars, and difficult-to-deform alloy parts (such as aerospace structural components, seamless tubes), and the surface requires subsequent finishing.
    Cold extruded parts Formed at room temperature, with high precision (up to IT7-IT8 grade), smooth surface, can be used directly.

    Typical products include gears, sleeves, cartridge cases, piston pins and fasteners.
    Wen extruded parts Situated between the two, they are suitable for difficult-to-machine materials such as medium and high carbon steel or stainless steel, balancing both precision and deformation resistance.
    According to the flow mode they are divided into positive extrusion pieces (with the flow direction being the same as the pressing direction),

    reverse extrusion pieces (with the flow direction being opposite), and composite extrusion pieces.

     

    Application:

    • Mechanical manufacturing: Precision parts such as automotive transmission shafts, bearing rings, and spline shafts.
    • Architecture and Transportation: Aluminum alloy window and door profiles, rail transit vehicle profiles, copper-aluminum conductive strips.
    • Daily productsand electronics: toothpaste tubes, battery casings, heat sinks, and precision electronic connector terminals.

     

    Limit and typical application:

    Main shortcoming High unit compression force, high energy consumption, extremely high requirements for mold strength/mobility, high mold cost, only suitable for mass production;

    During positive extrusion, uneven metal flow easily leads to “tail shrinkage” defects.
    Typical application Widely used in fields such as aluminum/copper profile tubes (hot extrusion), precision fasteners/gears/sleeves (cold extrusion), aerospace difficult-to-deform alloys, and food/ceramic continuous molding.

     

     

    Custom Containers FAQs

    Qigao is a welder and flame cutting machines leader in China. We insists on supplying professional technology, high performance and good after-sale service to meet the requirements of customers from around the worlds. China Qigao will try our best to become your one-stop supplier. Name your detailed task and we will find a solution together!

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    Forging parts

    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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    Extrusion parts

    Extrusion parts