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Plastic toys often have a flash or seam resulting from excess plastic leaking out of the mold. Such a seam is clearly visible on the base of these toys.

Flash or flashing is excess material attached to a molded, forged, or cast product, which must usually be removed. This is typically caused by leakage of the material between the two surfaces of a mold. (This leak begins along what is called a parting line in mold design^[1]) Molding flash is seen when the optimized parameter on cull height is not calibrated.

Note: The excess material, commonly considered a quality defect in Semicon industries, is on occasion mistakenly described as 'flashing'.

References

^ SolidWorks Express | April 2002

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[1] SolidWorks Express | April 2002

[1]

Revision as of 20:02, 11 November 2008 edit Wizard191 (talk \| contribs) Autopatrolled, Pending changes reviewers, Rollbackers 39,388 edits added cats and stubs; added processes that flashing also applies too ← Previous edit		Revision as of 18:27, 27 January 2009 edit undo Nimur (talk \| contribs) Extended confirmed users, Pending changes reviewers 24,659 edits +image of plastic Army Men toys, which show a seam / flash Next edit →
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			[[File:Airfix54mm.JPG\|thumb\|Plastic toys often have a '''flash''' or '''seam''' resulting from excess plastic leaking out of the [[molding (process)\|mold]]. Such a seam is clearly visible on the base of these toys.]]
	'''Flash''' or '''flashing''' is excess material attached to a [[molding (process)\|molded]], [[forging\|forged]], or [[casting\|cast]] product, which must usually be removed. This is typically caused by leakage of the material between the two surfaces of a mold. (This leak begins along what is called a [[parting line]] in mold design<ref>[http://www.solidworks.com/swexpress/april/200204_techtip_02.cfm SolidWorks Express \| April 2002<!-- Bot generated title -->]</ref>) Molding flash is seen when the optimized parameter on cull height is not calibrated.		'''Flash''' or '''flashing''' is excess material attached to a [[molding (process)\|molded]], [[forging\|forged]], or [[casting\|cast]] product, which must usually be removed. This is typically caused by leakage of the material between the two surfaces of a mold. (This leak begins along what is called a [[parting line]] in mold design<ref>[http://www.solidworks.com/swexpress/april/200204_techtip_02.cfm SolidWorks Express \| April 2002<!-- Bot generated title -->]</ref>) Molding flash is seen when the optimized parameter on cull height is not calibrated.