One fearure that all manufacturing gauges share is that they are normally made from a heat treatable tool steel to provide wear resistance. T or f
True
Most common types of gauges
-cylindrical plug
-plain ring
-taper plug
-taper ring
-thread plug
-thread ring
-snap
Use a __ gaufe to check the diameter of a bore. Should be a go/no go gauge
Cylindrical plug gauge
You use __ gauge to check the diameter of a shaft. Usually comes in pairs, one is GO and the other NO GO
Plain ring gauge
No go has an annular groove cut on the side on the OD
Use a __ gauge to check the diameter and angle of a tapered bore. Use blue dye to check taper and it has a gaugr line to indicate whether or not the diameter has been reached
Taper plug gauge
Use a __ gauge to check the diameter and angle of an outside taper
Taper ring gauge
Use a __ gauge to check the accuracy of a threaded hole. Comes with a go and no go
Thread plug gauge
Use a __ gaufe to check the accuracy of outside threads. Comes with go and no go, the no go has an annular groove around the gsuge
Thread ring gauge
Use a __ gauge like other fixed gauges, but it is adjustable to within certain limits. It has a c shape frame and a pair of adjustable anvil. You must adjust these anvils to the upper and lower limits of the workpiece
Snap gauge
Only authorized individuals are allowed to set and adjust snap gauges
True
The 3 factors that can affect a gauges reliability in checking a part are
-gauge dimensional accuracy
-gauge geometric form
-gauge surface finish
General rule of thumb is gauge accuracy should be 10x more accurate than the feature you are gauging. However ANSI recommends 5%
True
Reasons why gauges are expensive
-cost of buying equipment to produce the gauge
-Specialist skills to operate equipment
-additional time needed to make the gauge to the increased accuracy
Manufacturing costs increases exponentially as accuracy increases. Twice the accuracy, twice the cost
True
Use IT (international tolerance) grades when making gauges. Grades are 0-11, the lower the number the tighter the fit. 5 to 11 is typically used for fits
True
ISO stands for? Not exact acronyms
International organization for standardization
Grinding can routinely produce surface finish between __. Lapping can go up to __?
4 to 32microinch
.5microinch
Some examples of gauge geometric form that might need to be tightly controlled are
-straightness
-parallelism
-cylindricity
-circularity
-perpendicularity
-profile
-flatness
GD&T stands for
Geometric dimensioning and tolerancing
An additional wear allowance for wear can be made in addition to the gauge tolerance, but you can only apply wear tolerance to the maximum material condition (MMC) of the workpiece limit size
True
Wear allowance only applies to GO plug gauges
True
