Concept explainers
(a)
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
(a)
Answer to Problem 22P
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Explanation of Solution
The maximum material condition (MMC) and the least material condition (LMC) is used as a modifier to the size of a feature in the geometric control.
The symbol
The symbol
When the tolerance zone is modified with the (MMC) modifier, it means that the value applies when the feature is produced at its MMC.
The least material condition is applied, when it is too difficult to control the material at its minimum amount.
In case of MMC modification, the amount of deviation from the MMC is added to the specified geometric tolerance
In case of LMC modifier the deviation from LMC is added to the specified geometric tolerance.
For the given case, there is no modifier so the position tolerance zone is equal to the specified position tolerance and it is equal to the
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
(b)
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
(b)
Answer to Problem 22P
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Explanation of Solution
To calculate the position tolerance zone, add the value of deviation from the MMC.
Write the diameter at the maximum material condition (MMC) for hole.
Here, the base diameter is
Write the expression of the geometric tolerance for MMC modifier.
Here, the geometric tolerance is
Write the expression for the position tolerance zone.
Here, the position tolerance zone is
Conclusion:
Substitute
Substitute
Substitute
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Substitute
Substitute
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Substitute
Substitute
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
(c)
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
(c)
Answer to Problem 22P
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
The specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Explanation of Solution
Write the diameter at the least material condition (LMC) for hole.
Here, the base diameter is
Write the expression of the geometric tolerance for MMC modifier.
Here, the geometric tolerance is
Write the expression for the position tolerance zone.
Here, the position tolerance zone is
Conclusion:
Substitute
Substitute
Substitute
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Substitute
Substitute
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
Substitute
Substitute
Thus, the specification of the diameter allowed for the position tolerance zone, when the hole is produced with the diameter of
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Chapter 20 Solutions
MECHANICAL ENGINEERING DES.(LL)-W/CNCT
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