Plastic Shaping

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  1. Some plastics need preservation too

    While the push to reduce plastic use and its impact on ecology continue, experimentation about getting new life injected into materials, there is the inverse issues being identified in the art world currently. This study is being headed by POPART (Preservation Of Plastic ARTefacts in museum collections) and real focus is being put on preserving history and influential works, worldwide...
  2. What is a near net shape?

    Nylon parts can come in all shapes and sizes. The various shapes and sizes of parts widgets are made out of in nylon can many times lend itself to a near net cast nylon shape. A near net shape is simply a molten nylon resin poured into a tool that will give it a near finish or "near net" geometry...
  3. What are the ingredients in plastics?

    Plastic materials offer a wide variety of properties and design flexibility that have made them the material of choice for making many different products. From injection molded toys to machined bearings or bushings, plastics are allowing for creative ideas to become realities in a more affordable way to solve difficult problems. There are times when a plastic material by itself...
  4. Finding the Sweet Spot in Plastic Cutting Tools

    FINDING THE SWEET SPOT There are a number of factors to consider when setting up to machine plastics.  Most importantly, plastic has a higher thermal expansion rate than most other materials, such as metal or wood products.  Thermal expansion is the tendency of the material to change volume in response to the heat introduced during the formation of chips created...
  5. What is laminating?

    Lamination occurs when two or more layers of material are put together by either cohesion or adhesion. Plastic laminates are usually various layers of material held together by some sort polymer or plastic material. Laminates and reinforced plastics can be difficult to distinguish from reinforced plastics because the layers often provide strength and reinforcement as well to the base plastic...
  6. What is Compression Molding?

    Compression molding is a common process used for both thermoplastic and thermoset stock shape materials. Compression molding is accomplished by placing the plastic material (can be a granular or pelletized form) in a mold cavity to be formed by heat and pressure. The process is someone similar to making waffles. The heat and pressure force the materials into all areas...