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Cutting Mechanics when Turning Powder Metallurgy Produced Nickel-Cobalt Base Alloy with a Cubic Boron Nitride Insert

Daź Waldemar, Habrat Witold, Tymczyszyn Jarosław, Krupa Krzysztof

Advances in Science and Technology. Research Journal

2022

Vol. 16, no 4

163--175

For the critical aero-engine parts it’s important to understand influence of cutting tools, cutting parameters, tool ware etc. on near surface condition which highly affect fatigue strength and at the same part life-time. New material implemented for the latest designs of aero-engines parts generate challenges for machining processes to fulfil strict requirements of aviation standards. Finish machining is the most important stage of process influencing fatigue strength. cBN tool are often used for final stage of machining. The objective of this study was analysis of cutting mechanics during finish turning of modern nickel-cobalt based alloy with cBN insert. Observations of cutting tool wear and cutting parameters influence on the components of cutting force, surface roughness and residual stress are presented in this paper.