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Prediction of cutting forces of Solid end mills with differential helix angles - a numerical approach

 
: Westermann, Hans-Henrik; Thorenz, Benjamin; Müller, Robert; Steinhilper, Rolf

:

American Society of Mechanical Engineers -ASME-; American Society of Mechanical Engineers -ASME-, Design Engineering Division; American Society of Mechanical Engineers -ASME-, Computers and Information in Engineering Division -CIE-:
ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference 2016. Proceedings. Vol.:4: 21st Design for Manufacturing and the Life Cycle Conference; 10th International Conference on Micro- and Nanosystems : Charlotte, North Carolina, USA, August 21–24, 2016
New York/NY.: ASME, 2016
ISBN: 978-0-7918-5014-5
Paper DETC2016-59122, 8 S.
International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (DETC) <2016, Charlotte/NC>
Design for Manufacturing and the Life Cycle Conference ((DFMLC) <21, 2016, Charlotte/NC>
International Conference on Micro- and Nanosystems (MNS) <10, 2016, Charlotte/NC>
Englisch
Konferenzbeitrag
Fraunhofer IPA ()
Schneidwerkzeug; Zerspankraft; Hartmetallwerkzeug; Fräser; Schnittgeometrie

Abstract
Solid end mills with multi-section cutting edges and variable helix angles are available for application. New types of solid end mills for low energy consumption have recently been developed. These so-called Low Power Cutting (LPC)-Tools are characterized by differential helix angles. Compared to solid end mills with variable helix angles, the new differential helix angles change their pitch continuously over the cutting edge length. Due to this fact the cutting conditions are not in a constant state during the revolution of the cutting tool. Existing mathematical approaches for the calculation of cutting forces only consider constant helix angles in milling operations. This paper describes an approach for the prediction of cutting forces for differential helix angles. The developed mathematical model is based on geometrical considerations. Due to a continuously changing pitch over the cutting edge length a numerical approach for the mathematical model is chosen.

: http://publica.fraunhofer.de/dokumente/N-434994.html