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The Finished Part Blog

The Finished Part Blog

Tuesday, September 3, 2013

Deflashing Polyethylene

Deflashing UHMW Polyethylene
Ultra high molecular weight (UHMW) polyethylene is a plastic that has a density and hardness that is perfect for machining to whatever shape or design is needed. During this machining process, flashing and 'hairs' are created (see left side of picture). These parts need to go through a deflashing operation to produce a smooth, uniform surface finish (see right side of picture).

The part in the picture was vibratory tumbled for 2 hours with a general purpose Ceramic Media. This process removed all the flashing, rounded the edges slightly and remove the cutting and machining marks from the surface.


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