Cold Extrusion Manufacturers and Companies

IQS Directory is a top industrial directory listing of leading industrial cold extrusion manufacturers and suppliers. Access our comprehensive index to review and source cold extrusion manufacturers with preview ads and detailed product descriptions. These cold extrusion companies can design, engineer and manufacture cold extrusions to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these cold extrusion manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of cold extrusion forgings, cold aluminum extrusions, or cold extrusion processes.

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  • Screw Head Designs Made Possible with Cold Heading

    Cold heading is the industrial process used to cold-form different screw heads onto screws. The process uses rams, bolsters, punches, and dies to force the metal into the desired shape while it is still cold. The process uses a tremendous amount of pressure, but the benefit of the process is that the metal does not weaken like it can during a hot-forming process. The addition of computer-controlled part forming and heading machines make the number of cold headed part designs nearly endless, but there are a few basic shapes that...

  • Three Ways to Cold Form

    Cold extrusion is a metal manufacturing process that has always fascinated me. It is amazing to think that it is possible to mold metal into different shapes using pressure and gentle heat, rather than by completely melting the metal. Cold forming still uses heat to soften the metal, but it is more like heating butter slightly to soften it before baking than using completely melted butter. Just like in baking, melting metal completely changes the properties of the metal, just like melting butter completely changes the texture and performance of...

  • Cold Headed Parts and Warm Christmas Cookies

    by Joanna Dykhuis, IQS Editor During these dog days of summer when pop cans drip with condensation immediately when removed from the cooler, when beach towels take days to dry and when no hair product can stand up to the humidity, I catch myself thinking fondly of the upcoming winter season. As much as I complain about the blustery weather and the complications of snow, I also get warm fuzzies just thinking about all the winter activities I love like getting the Christmas tree, drinking hot chocolate in front of...

Industry Information

Cold Extrusion

Cold extrusion is a popular cold working process in which materials are forced through dies or around punches to produce variable lengths of cross-sectional and profile shapes. Although the name might suggest products are chilled, they are actually processed at room or ambient temperatures which must be below the re-crystallization temperature of the material to be extruded.

Materials that are commonly extruded include soft metals such as aluminum, tin and lead as well as copper, steel, molybdenum and vanadium. In specialized applications polymers, ceramics and other materials are formed by cold heading or cold forming. Of each of these, aluminum is perhaps the most widely used material found in cold extrusion applications. Stock shapes of these materials are pushed through a die or a series of dies as needed to achieve the desired dimensions. It is important that the raw material, the blank have a larger diameter or cross-section than that needed for the final product. Too small of a billet, ingot, or other stock shape will simply slide through the die unchanged. Cold extrusion professionals can help determine the necessary materials for a specific task. Manufacturers providing this service offer fast turnaround for finished products with good surface finish, close tolerances and high material integrity. The squeezing effect of extrusion machines produces high density forms as the material is compressed, closing all voids. The linear motion also elongates the material grains during the process of extrusion creating high strength and hardened parts and components. Automotive, electronic, pyrotechnics, packaging, marine, transport, chemical processing and construction industries consistently reap the benefits of cold extruded parts such as sheets, wires, rods, tubes, pipes, gaskets, seals, film, profiles and more.

Extrusion equipment, be it hot or cold has a relatively basic structure. Each machine has a tubular or cylindrical barrel that houses a punch such as a revolving screw, plunger or ram. In automated applications a hopper is attached and feeds raw materials to the punching apparatus for the process of impact extrusion. Manual extrusion machines have no hopper and instead technicians feed in the materials. When engaged, the punch pushes the materials along into a die at the opposite end which shapes the extruded mass as needed. There are two main types of cold extrusion available. Forward extrusions employ a punch or ram which forces material forward through an opening in the die, or dies. This gap is designed with the intended cross-section in mind. Successively smaller dies may be used in conjunction with one another to produce reductions as high as 75% with forward extrusions. Backward extrusion is just as it seems. The materials housed in the die are forced back towards the punch. This technique is used to produce blind holes, cups and the like. While the cross-section may become larger with back extrusions, the overall area is reduced as much as 75%. Several applications necessitate a combination of forward and backward extrusions which, when performed simultaneously, can produce parts with greater complexity than afforded by either extrusion process on its own.

Cold Extrusion
Cold Extrusion
Cold Extrusion - Brynolf Manufacturing Inc.
Cold Extrusion - Brynolf Manufacturing Inc.
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