Why pattern allowances are used in casting?

This topic contains 1 reply, has 2 voices, and was last updated by Profile photo of SATHISH KUMAR .S sathishkumar-s 1 year, 10 months ago.

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    Profile photo of MEW Team MEW Team 

    In most of the cases the shape of the casted part needs to be corrected in order to ensure the proper required shape, for this allowances are provided in the pattern.

    Machining allowance is provided in pattern for grinding the casted part for smooth surface.


    Profile photo of SATHISH KUMAR .S sathishkumar-s 

    Pattern allowance required to make smooth surface of casting part.

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