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Актуальные проблемы в машиностроении. 2016. №3
Технологическое оборудование,
оснастка и инструменты
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THE INCREASE OF DRILLS WITH RMP OPERABILITY DUE TO THE CUTTING
PLATE EDGE PROFILE CHANGE
Bakanov A.A.
, Ph.D. (Engineering), Director, e-mail:
alekbaknov@yandex.ruKuzbass State Technical University named after T.F. Gorbatchev, Institute of Information
Technology, Machine Building and Transport, 28 Vesennaya st., Kemerovo, 650000, Russian
Federation
Abstract
When drillings in the volume tempered rails the problem – low operability of this type of the tool
arises combined drills with replaceable multiface plates from a firm alloy. The main reason for it is
presented in this article is existence of an unbalanced of cutting force radial component . The
technique of design of a profile of cutting plate edge based on compensation of an unbalanced radial
component of cutting force on each elementary working site of the cutting plate edge due to
formation of cutting edge slope in the plane of the cutting allowing to minimize an unbalanced
radial component of cutting force on each this site is offered. The flowchart for calculation of the
cutting plate edge profile is submitted. This technique allows to increase operability of the
composite drills on average for 30%.
Keywords
Composite drill, the increase of operability, replaceable multiface plate, the cutting edges profile,
the cutting edge slope, an equilibration of the cutting forces radial component