Principles of Dimensional Metrology
1. 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:
A) Angle of taper and the large end diameter.
B) Assuming an error of upto 0.005 mm in measuring the distances and no errors in the ball diameter, determine the possible error in angle?
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.
3.Given the following gages and their classify then in one of the eleven categories and justify your selection
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Gage Description
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Application
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Classification
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Mahr/Federal XLI-22P=20 Portable Thickness Gage
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Verify Flange thickness by an operator on assembly floor
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Mahr Form MMQ 400-2
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Small lot of engine shafts to be measured for First Article
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Nikon XC65d(-LS) Cross Scanner on a LK V 21.12.10
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Measure Sheet metal profile in stamping inspection cell
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Renishaw Equator
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Introducing gage to replace multiple hand inspections for process control
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Zygo 7300 New View
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Parts sent for measurement for a customer return. Need improved data to complement production inspection from layout
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Starrett 1-2" Micrometer
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Small lot of engine shafts to be measured for First Article
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Starrett 0-2" Micrometer
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Verify Flange thickness by an operator on assembly floor
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Habco Model AF1000 Digital Airflow Test Stand
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Measurement of in-process inspection for part acceptance by lead man
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MitutoyoSurftest SJ-310
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Production method of inspection for shaft surface finish
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OGP Focus
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Profile measurement of ground surface by an operator
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INTRA Variable Fixture Electronic Gage
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Measurement of crankshaft journal runout
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North Star Imaging CXMM CT System
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Measurement of internal hole diameters of nozzle
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Accent Industrial FPI System
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Crack Detection of machined disks
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GARMicrofinish Surface Comparator
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Used at final inspection by operator to verify grind surface
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Schenk PASIO50
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Small Rotor Balancing per ISO specification
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