Today, it is popular to talk of eliminating electrodes for hard die milling. While it is true that the graphite mineral milling machine process for hardened steel has advanced by leaps and bounds.
Relative to hard die machining, graphite mineral milling machine is a much more robust process. The nature of graphite means that it is much more forgiving of "jerky" machine movements, tool runout and other process inadequacies than hard die machining. These deficiencies will still adversely affect graphite part quality, but likely will not cause the process to stop due to a broken tool. Furthermore, machining time for graphite electrodes is significantly less than that for equivalent hardened steel parts.
To fully optimize the production of electrodes, it is often necessary to implement an automated production environment. An automated graphite mineral milling machine production system must provide adequate tool and part storage to allow 72 hours or more of unattended operation. As important as the automation equipment itself is the capability of the machining center. It must be accurate and repeatable enough to eliminate the prospect of thermal drift over time.
Large diameter susceptors for induction furnaces are produced from solid graphite.
Shanghai ShiBang is capable of machining and fabricating graphite and carbon-graphite parts of practically any size from 1/16" in diameter to 24" x 48" x 120", which is the largest graphite manufactured today.
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