L25 - Tolerancing GE 101 Engineering Graphics and Design...

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    Tolerancing GE 101 Engineering Graphics and Design
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    Motivation Products are mass-produced Parts manufactured in different parts of world,  brought together for assembly Parts must be interchangeable Variability  always exists in manufacturing  processes Designer must consider: Allowable range of variation of part features How parts fit together in assembly
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    Tolerances - 1 3.25 ± .03 lower limit = 3.22 upper limit = 3.28 tolerance = 0.06 A   tolerance   is the difference between the  maximum and minimum size limits on a part
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    Tolerances - 2 Tolerance specifies range for size and  location of features on a part that will allow  part to function properly Used to control variance that exists on all  manufactured parts State tolerances as generously as  possible Provides for a wider variety of processes that  can be used to manufacture part Keeps part cost low
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    Declaring Tolerances
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L25 - Tolerancing GE 101 Engineering Graphics and Design...

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