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A Design Study in Aluminum Castings -Uplock Support                                          

Machining Allowances
The drawing to the right highlights three features on the uplock with different machining and tolerance requirements.

Feature A -- Mating Surface for Cover Plate on Angle Face

Feature B -- Access Hole on Side Wall

Feature C -- Fit-up Surface on Lower Horizontal Edge of Side Wall.

The casting engineer should consider which features need additional machine stock.

Which Feature (A, B, or C) should have added machine stock?

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Copyright 2001 by the American Foundry
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Last Modified:November, 2001 by STG

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