Machining

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  1. 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...
  2. What is Casting?

    Casting involves introducing a liquefied plastic into a mold and allowing it to solidify. In contrast to molding and extrusion, casting relies on atmospheric pressure to fill the mold rather than using significant force to push the plastic into the mold cavity. Some polymers have a viscosity similar to bread dough even when they are at elevated temperature so they...
  3. Fear and Insanity in the World of Plastics Machining

    We have all heard the old saying: "The definition of insanity is doing the same thing over and over again and expecting a different result." Sometimes, we secretly can hope for things to be different. Fear can get in the way of making that hope a reality. We all know that fear can either motivate great change or cause great...