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Small Scale Foundries for Developing Published by: Intermediate ...

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tool and material storage space.<br />

Parts of patterns must be located together<br />

accurately. It is also necessary to provide<br />

accurate iocation <strong>for</strong> coreboxes and <strong>for</strong><br />

moulding hexes. For these purposes accurate<br />

bushes (sockets) and pins or dowels are<br />

needed. For the most accurate work these<br />

should be purchased from specialist manufacturers<br />

and made in hardened steel. Lwever,<br />

<strong>for</strong> less critical castings, simple metal<br />

location pegs and bushes may be made in<br />

pattern shops. The use of wooden location<br />

pegs is not recommended.<br />

A good supply of screws and bolts of different<br />

sizes is also necessary as is a good<br />

quality adhesive and a hard setting “filler”<br />

material.<br />

Pattern Storage<br />

If repeat casting orders are likely, patterns<br />

should be stored with care - especially since<br />

the pattern is often (depending upon the<br />

commercial arrangements) the property of<br />

the foundry’s customer. Wooden and metal<br />

patterns shou!d be kept on racks away from<br />

the foundry and the risks of accidental<br />

bruising or da.mage, fire hazards or damp.<br />

In designing a foundry, adequate space<br />

should be provided <strong>for</strong> pattern storage.<br />

5

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