Principles of Dimensional Metrology
Balls of diameters 25 mm and 20 mm were used to measure a taper ring gage. The large ball protruded mm above the end face of ring gear while the distance of the end face from the top of the 20 mm diameter ball was 40 mm.
Determine:
Angle of taper and the large end diameter.
Assuming an error of up to 0.005 mm in measuring the distances and no errors in the ball diameter, determine the possible error in angle?
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2.
Figure above shows a method to measure taper of a cone with a 10 in sine bar as shown. If the height h of the slip blocks assembly is 2. 5321 in, determine the taper of the cone. A ½ in ball with a slip gage stack of s = 0.1203 in is assembled as shown such that the dial gage reading over the taper and the block are identical.
Calculate the diameter of the smaller end of the cone.
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3. Given the following gages and their classify then in one of the eleven categories and justify your selection
Gage Description
Application
Classification
Mahr/Federal XLI-22P=20 Portable Thickness Gage
Verify Flange thickness by an operator on assembly floor
Mahr Form MMQ 400-2
Small lot of engine shafts to be measured for First Article
Nikon XC65d(-LS) Cross Scanner on a LK V 21.12.10
Measure Sheet metal profile in stamping inspection cell
Renishaw Equator
Introducing gage to replace multiple hand inspections for process control
Zygo 7300 New View
Parts sent for measurement for a customer return. Need improved data to complement production inspection from layout
Starrett 1-2” Micrometer
Small lot of engine shafts to be measured for First Article
Starrett 0-2” Micrometer
Verify Flange thickness by an operator on assembly floor
Habco Model…