Fig.1showstherelationshipbetweennumericallycomputedamplitudesandfrequenciesoftheworkingrollaxisverticalvibrationandthestriptensionrequiredbytheprocess,atvariousfeedvelocities.Asitcanbeseen,theinfluenceofthefeedvelocityissignificantanditcannotbeneglectedintheevaluationofamplitudelevels.Asregardsvibrationfrequency,thisinfluenceisnotconsiderable.