Open AccessDetermination of cutting forces based on DMG MORI CTX300 ecoline CNC lathe drive power data
Author(s) -
A. P. Starostin,
David Elkind
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/966/1/012075
Subject(s) - machining , numerical control , power (physics) , machine tool , mechanical engineering , engineering , process (computing) , path (computing) , parametric statistics , computer science , control engineering , mathematics , physics , quantum mechanics , statistics , programming language , operating system
Modern machine building needs demand for machines and control systems which provide higher accuracy of machining. For this purpose, setup methods are being researched and accuracy of machines and devices is being improved. The main topic of this paper is a tool path predistortion system which is necessary for improvement of shaft turning accuracy when a steady rest cannot be used on a CNC machines. Calculation of such tool path requires one to know the cutting force during turning on a CNC lathe. The research in question allowed to determine the dependence of cutting force during turning on the power consumed by the feed drive, cutting depth, cutting velocity, and feed value. An equation for further calculation applicable to a specific lathe in the turning process was derived. This equation serves as basis for adaptive turning of shafts and other parts with the aid of a mathematical model, which must account for the cutting force. Application of this formula in a CNC controlled lathe’s parametric program will provide for higher accuracy of turning without special devices.