Limits:
A useful definition is provided by McGraw Hill: "Two extreme permissible sizes of a part between which the actual size is contained, are called Limits".
Fits:
The relationship between two parts, which are to be assembled, with respect to difference of their sizes, before assembly is called 'Fit'.
It is the general term used to signify the range of tightness or looseness that may result from the application of a specific combination of allowances and tolerances in mating parts.
Tolerance:
The total permissible variation of a size is called Tolerance. It is the difference between maximum and minimum limit of size.
1. Definitions
2. Types of Fits
3. The basic systems for determining fits
4. Common terminology used with respect to fits & limits
5. International Tolerence Grade (ITG)
6. Fit of a component specification
7. Fundamental tolerence chart
8. Common aplications of various fits
9. Achievable tolerence levels by various machining processes
10. Limit gauges and their applications
1. Definitions
2. Types of Fits
3. The basic systems for determining fits
4. Common terminology used with respect to fits & limits
5. International Tolerence Grade (ITG)
6. Fit of a component specification
7. Fundamental tolerence chart
8. Common aplications of various fits
9. Achievable tolerence levels by various machining processes
10. Limit gauges and their applications
No comments:
Post a Comment