Positional TSU of Assembly, RFS
Positional TSU of Assembly, MMS
Positional TSU of Assembly with Datum Shift)
Positional TSU of Assembly, RFS
Positional TSU of Assembly, MMC
Positional TSU of Assembly with Datum Shift
Chapter 5
Profile Tolerance Stack-up
Dimension and Tolerance Entry of Profile
Profile TSU of Parts
Composite Profile TSU of Parts
Dimension and Tolerance Entry of Profile
Entry of Profile TSU
.Profile never allows bonus tolerance, but allow possibility of datum shift.
.Profile is entered into the Tolerance Stack-up report form on two lines: profile and datum
shift. shift.
.Geometric dimensions and tolerances are specified as unequal bilateral or unilateral, they must be converted to equal bilateral format before they can be entered into the Tolerance Stack-up report form.
Profile TSU of Parts
Calculate the Max and Min Distance of A-B,C-D
Composite Profile TSU of Parts
The profile tolerance specified in the upper segment of the feature control frame represents the total allowable variation in location of the features to a datum reference
frame.
Typically the tolerance defined in the upper segment is used in TSU
The profile tolerance defined in the lower segment of the feature control frame is not basically located to a datum reference frame—they may only be basically oriented to a datum reference frame and is basically located to each other in the case of a pattern.
The profile tolerance specified in the lower segment may be used in TSU if the TSU is between features in a pattern.
Calculate the Max and Min Distance of A-B
Chapter 6
http://www.cadfamily.com/html/Article/GD&T%20Tolerance-Positional%20TSU%20of%20Assembly_600_1.htm
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