Mold Base Terminology - D

Dowels

These maintain the position of the component on a given plate. Only two dowels are used in a mold base plate to maintain the relative position. Using any more than two is usually a waste and creates alignment problems. While dowels are used to provide alignment, they are very limited in their effectiveness when it comes to controlling thermal expansion.

Draft

The tapered design of a mold wall, which facilitates removal of molded part.

Drooling

Leakage of resin from a nozzle or around the nozzle area during the injection step in injection molding. Also results in the escape of low viscosity resins from the nozzle.

 

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