Dynamic stabilization of the turn-milling process by parameter optimization

• Published in: Proceedings of the Institution of Mechanical Engineers. Part B, Journal of engineering manufacture Vol. 214; no. 2; pp. 127 - 135
• Main Authors: Pogacnik, M, Kopac, J
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.02.2000; Mechanical Engineering Publications; SAGE PUBLICATIONS, INC
• Subjects: Applied sciences; Cross-disciplinary physics: materials science; rheology; Cutting; Exact sciences and technology; Fundamentals and general; Kinematics of deformation and flow; Metals. Metallurgy; Physics; Production techniques; Rheology; turn-milling; optimal set-up; dynamic; decision diagram; quality; Process dynamics; Cutting; Simulation; Kinematics; Milling; Turning; High speed machine; Dynamic stabilization
• ISSN: 0954-4054; 2041-2975
• DOI: 10.1243/0954405001517504

Abstract The process of turn-milling was a subject of intensive research in the late 1980s, which was followed by a number of practical applications. However, this process has not been investigated as extensively as other conventional cutting processes (turning). The main limitations preventing wider use have been the kinematics (smaller shape elements) and the dynamic instability. This paper presents guidelines showing how to avoid dynamic instability by using optimum entry—exit conditions which can be achieved through a proper set-up of the process parameters. As a result, a decision diagram is proposed. The paper also presents the results of comparison with turning, showing that, at the same productivity, turn-milling enables better surface roughness and is much more suitable for high-speed cutting (HSC) machining than turning, where the centrifugal force restrains the process.