High-speed, ultra precision manufacturing station that combines direct metal deposition and EDM
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United States of America Patent
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Jan 14, 2014
Grant Date -
Sep 6, 2007
app pub date -
Jan 30, 2007
filing date -
Jan 30, 2006
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Abstract
A direct-metal deposition (DMD) processing stage and a 5DOF (degree of freedom) dry micro-EDM (mEDM) stage are integrated to provide the submicron scale resolution necessary for the ultra-precision processing of work pieces. The DMD processing stage includes optical feedback for dimensional control utilizing a high-power, fiber-coupled diode laser with fast response time and small beam parameter product. The electrical discharge machining (EDM) stage is a dry EDM stage using an inert gas with appropriate dielectric properties to perform the surface finishing operations. The system further includes one or more surface treatment operations to obtain a desired level of surface hardness or wear resistance and/or to minimize the distortion induced in treating the surface.
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