Transcription of UNIT 8 COORDINATE MEASURING Coordinate Measuring …
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UNIT 8 COORDINATE MEASURING Coordinate Measuring …
97 COORDINATE MEASURING Machines (CMM) UNIT 8 COORDINATE MEASURING MACHINES (CMM) Structure Introduction Objectives Description of Parts CMM in Computer Aided Manufacturing Advantages of CMM Summary Key Words Answers to SAQs INTRODUCTION With the advent of numerically controlled machine tools, the demand has grown for some means to support these equipment. There has been growing need to have an apparatus that can do faster first piece inspection and many times, 100% dimensional inspection. The COORDINATE MEASURING Machine (CMM) plays a vital role in the mechanisation of the inspection process.
Metrology and Instrumentation Probing System It is the part of a CMM that sense the different parameters required for the calculation. Appropriate probes have to be selected and placed in the spindle of the CMM. Originally, the probes were solid or hard, such as tapered plugs for locating holes.
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