Deducing the Coefficient of Non-Free Cutting of Major Cutting Edges of a Standard Twist Drill
A standard twist drill is divided into a series of elementary cutting tools (ECT) along its major cutting edges. The natural power consumed by each ECT during free cutting is calculated on the basis of the theory of shear plane. Through optimization, the actual power consumed and the coefficient of...
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Veröffentlicht in: | Key engineering materials 2006-01, Vol.315-316, p.681-685 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A standard twist drill is divided into a series of elementary cutting tools (ECT) along its
major cutting edges. The natural power consumed by each ECT during free cutting is calculated on
the basis of the theory of shear plane. Through optimization, the actual power consumed and the
coefficient of non-free cutting of the major cutting edges subject to the principle of minimum
energy are calculated. The results indicate that although the major cutting edges of the standard
twist drill are straight lines, their cutting process is not free cutting in full sense of the term. |
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ISSN: | 1013-9826 1662-9795 1662-9795 |
DOI: | 10.4028/www.scientific.net/KEM.315-316.681 |