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Aluminum Extrusion Press Down Time Monitoring & Extrusion Process Monitoring

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Aluminum Extrusion Press Down Time Monitoring &
Extrusion Process Monitoring

Markus Dobler, Manufacturing Consulting Establishment,
Vaduz, Principality of Liechtenstein

Track: MANAGEMENT ISSUES - Operations

ABSTRACT—Press productivity is an important key figure to indicate if an extrusion
operation is performing well. The key drivers for this are the lost time, the scrap and the ram
speed. This document will show a simple way to monitor time losses and the cycle time of a
billet, which is a result of the ram speed. The idea is to monitor and visualize online the actual
situation of the extrusion press. Down time monitoring: the system looks at contact pressure;
when there is an interruption in the dead cycle longer than expected, the system will highlight the
buttons representing the “cause” of the problem from which the operator must choose. Extrusion
process monitoring: The software module monitors the calculated cycle time of each billet vs. the
actual cycle time online for each billet. The performance of each billet is visualized on the screen
at the press. Because most of the extrusion plants have an internal local area network (LAN), all
personnel (maintenance, die technicians, planning etc.) needing access to the information can
understand what is occurring in production on various extrusion lines, which provides the
opportunity to act/support immediately.

© Extrusion Technology for Aluminum Profiles Foundation (ET Foundation). All rights reserved. No part of The Proceedings may be reproduced in any form without the express written permission of the ET Foundation.