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SME IQ920186
- Alternative Methods Of Evaluation And Reduction Of Measurement Error On A Coordinate Measurement Machine
- standard by Society of Manufacturing Engineers, 06/01/1992
- Publisher: SME
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THE COORDINATE MEASURING MACHINE IS GAINING IMPORTANCE AS THE PRIMARY METHOD OF VERIFYING PROCESSES IN A MANUFACTURING ENVIRONMENT. CURRENT PRACTICE REQUIRES THAT THE CMM BE SUBJECTED TO A GAGE REPEATABILITY AND REPRODUCIBILITY STUDY TO EVALUATE THE PERCENTAGE OF TOLERANCE CONSUMED BY THE MEASUREMENT DEVICE. A CMM CHECKS MANY CHARACTERISTICS VERY QUICKLY WHICH RESULTS IN A VERY TIMES PROCESS TO EVALUATE THE SYSTEM. THIS PAPER ADDRESSES A METHODOLOGY THAT ACTS AS A SIMPLE EVALUATION METHOD TO TEST WHETHER THE CMM PROGRAM IS READY TO HAVE A GR&R PERFORMED OR NEEDS TO BE IMPROVED. IT ALSO PROPOSES A METHODOLOGY TO IMPROVE THE CAPABILITY OF THE CMM.