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Development of Single Point Turning Technology For Beryllium Mirrors

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Abstract

Single point diamond turning techniques have been developed and employed to produce a variety of nonferrous metal mirrors. These techniques have not been effective for turning beryllium. Because of the unique properties of beryllium to military applications and the advantages of single point turning, a development program has been instituted to single point turn beryllium.2 Tool materials, cutting fluids, and machining parameters such as spindle speed, feed rate, depth-of-cut, and tool geometry have been evaluated, resulting in a significant improvement in the machining process. Tool wear has been the primary limitation in precision machining beryllium, but advances have allowed a two order-of-magnitude reduction in this problem. The safety aspects of machining beryllium are crucial and have also been addressed in this program.

© 1990 Optical Society of America

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