Bibliographic Details
| Title: |
Real-time tool wear condition monitoring in turning. |
| Authors: |
Li, Xiaoli |
| Source: |
International Journal of Production Research. 3/20/2001, Vol. 39 Issue 5, p981-992. 12p. 3 Diagrams, 1 Chart, 4 Graphs. |
| Subjects: |
Mechanical wear, Machine tool monitoring |
| Abstract: |
A new method to monitor tool wear condition in real time using feed-motor current measured with the aid of inexpensive current sensors installed on the AC servomotor of a CNC turning centre is presented. To achieve this, the feed drive system model is analysed, the feed-motor current is measured, and the relations between feed-motor current, cutting force, and tool flank wear are addressed. The functional dependence of the feed-motor current on tool wear is then expressed in the form of a difference equation relating variation in the feedmotor current to tool flank wear rate. The computerized system automatically compares successive feed-motor current and determines the onset of accelerated tool wear in order to issue a request for tool replacement. Experimental results show that this method of tool wear condition monitoring is effective and industrially applicable. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
