Cutting force model for multi-toothed cutting processes and force measurement equipment for face milling
Författare
Summary, in English
This article presents a mechanical cutting force model for multi-tooth cutting processes, where initial position errors in radial and axial direction, eccentricity and edge wear are taken into account. The cutting forces are presented for each individual cutting edge, and in a system of coordinates where one axis is parallel to the cutting speed vector at any instant. The process parameter cutting resistance, Cr is derived from the measured main cutting force FM. Cr should be regarded as a parameter since it is always increasing with decreasing values of theoretical chip thickness h1. A new way of measuring cutting forces in multi-tooth cutting processes is also presented. Eight cutting force components are measured on the tool close to each of the four cutting edges. The aroused signals are filtered, amplified, A/D-converted and put together in a serial stream for transmission through a hollow spindle via a fibre optic cable. The signals are sent from the rotating spindle to the frame of the machine over an air gap with Light Emitting Diodes. They are then demultiplexed, D/A-converted, and stored in a PC-based eight channel oscilloscope. With this measurement equipment it is possible to directly measure the cutting forces acting on each individual cutting edge.
Avdelning/ar
Publiceringsår
1995
Språk
Engelska
Sidor
1715-1728
Publikation/Tidskrift/Serie
International Journal of Machine Tools & Manufacture
Volym
35
Issue
12
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Materials Engineering
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0890-6955