Sand casting for flexible production
A
Norse Precision Castings product story
Edited by the Engineeringtalk editorial team
Oct 21, 2002
Design variants can be economically accommodated in sand casting.
Design variants can be economically accommodated in sand casting.
The sand mould often contains up to eight cores carefully pieced together, enabling product variations to be made by changes to only one or two pieces.
Sand casting is an art as old as technology itself, but the accuracy of modern-day sand casting ranks it alongside the best metal forming techniques available, both cost and styling benefits suggest designers should give it serious consideration for anything less than high volume production.
Aluminium casting techniques at Norse Precision Castings can achieve tolerances of +0.4mm and wall thickness of 3mm.
Experience in mould design, particularly the feeders and the excellent fluidity of aluminium, enables cavities and strengthening ribs, even logos, to be incorporated.
Good machinability post casting then allows the finished part even tighter tolerances.
With the absence of high tooling costs, sand casting equates well to products with a series of variants although runs of several thousands of casting are well within capability at Norse Precision Castings.
(This was Engineeringtalk's Top Story on 18 October 2002).
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