Tumbling
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Definition:
A finishing operation for small plastic articles by which gates. Hash and fins are removed and/or surfaces are polished, by rotating them in a barrel together with wooden pegs, sawdust, and (sometimes) polishing compounds. The barrels are usually of octagonal shape with alternate open and closed panels, the open panels covered with screen to permit fragments of removed material to fall out. Blocks of dry ice may be added to the tumbling medium to embrittle the parts and thus facilitate cleaner flash rupture. Also known as TUMBLE FINISHING and barreling.
Definition Copyright ©1989 CRC Press LLC. All rights
reserved.
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