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Basics of Machined Plastic Selection

MatWeb Featured Article
By Tom Rohlfs
PEP Connecticut Plastics

Machining of plastics can be advantageous for applications requiring low volume production, close tolerance dimensions, and/or difficult to mold configurations. There is an array of plastics from which to choose, ranging from highly engineered, high performance products to low cost, low performance. Determining which is appropriate for a particular application can be challenging. Typically an engineer will require three or less characteristics that are critical to the functionality of the component. A basic search will prioritize and look for a material that can supply all three. The below list presents only the most common machined plastics. Many plastics are available with fillers to enhance particular characteristics. For example, glass fill improves tensile strength while reducing machinability. Molybdenum disulphide improves wear while reducing dimensional stability.

Learn more about machined plastic component design
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