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A new approach to eliminate twist drill chisel edge Part 2. Symmetric configuration

 

作者: H. H. THORMLEY,   A. B. T. EL-WAHAB1,   J. D. MAIDEN,  

 

期刊: International Journal of Production Research  （Taylor Available online 1987）
卷期: Volume 25, issue 5  

页码: 741-759

 

ISSN:0020-7543

 

年代: 1987

 

DOI:10.1080/00207548708919874

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

The flute shape to produce two new drill configurations are presented. The first configuration is to provide a straight diametral lip which could be extended to eliminate the chisel edge. The second configuration, which encompasses the feature of the first one at the inner portion of the lip and the curved shape at the outer portion of the drill lip, is provided to enhance the overall life of the drill.

 

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