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Smart ways to design with Aluminum Extrusions
stock. With extrusions, designers spend virtually about the same amount on first article dies which also serve production when proven. Another factor is the time, often months, that it takes to make and prove casting tools. Extrusion dies, on the other hand, often take only a few weeks to build...
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Extrusion Processes
rings for pipe and tube, or geometric patterned. and less costly. shapes for items such as vinyl siding and window frame stock. All. e. Fillers are typically inorganic compounds (talc, graphite,. die surfaces must be free from defects otherwise unwanted pat-. chalk, etc.) that are cheap and do...
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Rolling out complex metal parts
Revolution. Cold rolling compresses and spreads metal bar or coil stock between a series of preshaped rollers. This improves the metal's mechanical properties. Of the two processes, cold rolling imparts better surface finishes and is more suited for simpler profiles with less-demanding tolerances...
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No stress nylon
advantage: It can be processed from both pellets via melt-oriented processes such as extrusion, injection molding, and compression molding as well as cast where the monomer polymerizes in the aluminum mold cavity. This monomer casting has been used since the 1960s to produce stock rod, plate...
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Nickel
Nickel 200 is one of the many specialty metals in stock at All Metals & Forge. It is available from their steel service center in over a dozen pre-cut shapes, with each shape offered in a number of sizes. The custom forging company at All Metals & Forge can also produce several forms of Nickel 200...
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Tips for no-melt machining
. It's also important to look at the wide array of profiles available when selecting stock shapes. Stock shapes are made by compression and injection molding, extrusions, and castings. The process used to make the stock shape often has little bearing on the choice of material. But the initial...
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Superstrong parts
Advanced forging processes now yield parts with directional strength and high impact resistance. A thin-walled ring takes shape on a ring mill. A spindle has been forged and is now being planished under the press to achieve a smooth surface, keeping stock allowance to a minimum. The open-die...
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Polyimide
as laminates and shapes, molded parts, and stock shapes from some materials producers. Thin-film products enamel, adhesives, and coatings - are usually derived from thermoplastic polyimide resins. Laminates are based on continuous reinforcements including woven glass and quartz fabrics, or fibers...
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Structural Foam
and extrusion machinery. Processing temperatures, however, are higher than those of other thermoplastics; the sulfones are processed on equipment that can generate and monitor stock temperatures in the range of 650 to 720° F. Natural color of the sulfone resins is transparent light amber. Continuous...
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Plastic Compounder's PET Project: Recycling
. The feedstock can be converted into PBT resin, which is widely used in injection or blowmolding applications. A better way to reuse PET might be to convert it into more-valuable "virgin" PBT base stock. To make PBT, cleaned PET flakes are fed into a high-temperature reactor along with a diol...