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EFFECTOFMISALIGNMENTONTHECUTTINGFORCESIGNATUREINDRILLINGAALHAMDANMECHANICALENGINEERINGDEPARTMENT,MUTAHUNIVERSITY,MUTAH,KARAK,JORDANRECEIVED27JUNE2000；ACCEPTED2JANUARY2002ABSTRACTTHISPAPERPRESENTSASTUDYWHICHINVESTIGATESTHEEFFECTOFMISALIGNMENTBETWEENTHEAXESOFROTATIONOFDRILLANDTHEWORKPIECEONTHESTEADYSTATEANDDYNAMICOFTHEAXIALCUTTINGFORCEANDTORQUEANOVELMETHODOLOGYHASBEENPROPOSEDTOMEASURETHEMISALIGNMENTBETWEENTHEAXESOFROTATIONOFTHEDRILLANDTHEWORKPIECETHISUSESALASERBASEDSYSTEMTOMEASURETHISMISALIGNMENT,WHEREAREFERENCEBEAMHASBEENGENERATEDBYALASERTUBE,WHICHISHELDINTHECHUCKOFTHEMACHINEUSINGASPECIALENCLOSURETHELASERBEAMISCAPTUREDBYAPHOTOSENSORCAMERAHAVINGAVIDEOCAPTURECARDTOSTUDYTHEEFFECTOFTHEMISALIGNMENT,THESTARTINGBUSHWASINTENTIONALLYMISALIGNEDBYMOVINGTHEPRESSUREHEADOVERTHECARRIAGEUSINGTHELEADSCREWOFTHECROSSSLIDEKEYWORDSMETALCUTTING；DRILLING；DEEPHOLEMACHINING；IMAGEPROCESSING；MISALIGNMENT；CUTTINGFORCES1INTRODUCTIONTHERELATIVEPOSITIONANDMOTIONBETWEENTHETOOLANDWORKPIECEMAYAFFECTBOTHTHESTEADYSTATEAND
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