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US 5,509,335 AGranted
Cryogenic vapor oxygen free machining method
AssigneeValue Tech Engineering, Inc.
InventorEdwin L. Emerson
Life of this patent
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Abstract
A machining system including a machine tool having a workpiece holder and at least one cutting tool for machining a workpiece retained by the workpiece holder; a control for automatically controlling the machine tool; a material handling mechanism for loading and unloading workpiece material; and a hermetically sealed chamber enclosing the machine tool and the material handling mechanism. Also included in the system is a source of cryogen and a cryogen distribution network for directing cryogen toward the workpiece retained by the workpiece holder.
Claims5
A machining method comprising the steps of:
- providing a hermetically sealed chamber around a workpiece;
- evacuating said chamber so as to produce therein a substantially oxygen free environment;
- directing a cryogen vapor onto only a limited portion of said workpiece so as to substantially cool only said limited portion thereof;
- and
- machining said limited portion of said workpiece to produce a finished part therefrom.
2 more elements
Dependencies are inferred from the claim text.