Sawing Hot Billets at the Extrusion Press
David Turnipseed and Michael T. Kohn, Belco Industries, Inc., USA
Track: EXTRUSION EQUIPMENT - Sawing
ABSTRACT --- Until the production of the log shear, there has been only one
alternative method of delivering usable lengths of aluminum billet to the
extrusion press. The log shear delivers preheated cut-to-length billets on demand
but not without adverse conditions that can offset savings of cutting billets at the
press. While operating the log shear, the aluminum extrusion producer suffers
high mechanical downtime, high maintenance cost, and extrusion surface defects.
With no other alternative available, aluminum extrusion companies have been
forced to accept these adverse side effects as part of the process and they can be
only minimized, not eliminated. In today’s competitive global economy,
increasing demands are challenging equipment designers for better solutions.
One new invention meets this demand, the patented Belco/B&O Hot Log Saw.
After listening to the needs of the extruders, these sister companies teamed
together to produce the world’s first commercially successful circular saw for
cutting aluminum billets from a preheated log. Thanks to their ingenuity, the
extrusion industry is now able to raise its standards. The hot log saw is vital to
more future developments of the extrusion process that will require such
precision only this method of processing delivers.
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