When it comes to the large-scale production of thermoplastic polymer parts, the injection molding technique dwarfs others. Furthermore, it is cost-effective. Basically, an injection molding machine constitutes two parts: an injection section and a clamping section (fig.1 and 2). The injection section has a hopper where a material is fed, and an injection ram that drives a molten material to the clamp thanks to heaters. At the clamping sections, various molds/die are used to produce desired shapes. The molds are manufactured from a range of materials including aluminum, steel, and beryllium-copper alloy. These molds are manufactured by either “CNC machining or by using electrical discharge machining process” (Malloy 32).

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