𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The torque and thrust force in twist drilling—I. Theory

✍ Scribed by C. Rubenstein


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
537 KB
Volume
31
Category
Article
ISSN
0890-6955

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Measurements of the chip flow angle and of the chip length ratios (which afford estimates of the normal shear plane angle) along with calculations of the change of rake angle along the lips of spade drills reveal that removal by the kips in spade drilling is quasi.orthogonal. This, coupled with the