THE TORQUE AND THRUST FORCE IN TWIST DRILLING .2. COMPARISON OF EXPERIMENTAL-OBSERVATIONS WITH DEDUCTIONS FROM THEORY

被引：16

作者：

RUBENSTEIN, C

机构：

[1] Department of Mechanical Engineering, Ben Gurion University of the Negev, Beer Sheva, 84105

来源：

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 1991年 / 31卷 / 04期

关键词：

D O I：

10.1016/0890-6955(91)90032-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Published data are shown to conform with previously derived expressions relating the torque and the thrust to feed and drill diameter in drilling operations conducted with a set of geometrically similar twist drills. The model from which the theoretical expressions are derived is shown to be capable of explaining the apparently deviant behaviour observed when drilling workpieces which exhibit high adhesion. The model is based on the assumption that the removal process at the drill lips is quasi-orthogonal which is valid provided the drill diameter is sufficiently large compared to the chisel edge length. The behaviour observed with small diameter drills is shown to be consistent with the removal process becoming noticeably oblique. The consequences of geometric dissimilarity of drill shape are discussed.

引用

页码：491 / 504

页数：14

共 6 条

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[6]

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