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.
measuring system, eliminating the introduction and the accumulation of errors that can result with hand-gage inspection methods and transfer techniques. Reduced Operator Influence The use of digital readouts eliminate the subjective interpretation of readings common with dial or vernier type measuring devices. Operator “feel” is virtually
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