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Actual Problems in Machine Building. 2015. N 2
Innovative Technologies
in Mechanical Engineering
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THERMOPHYSICAL BASICS OF HOLE MACHINING GEOMETRY ACCURACY
Milovanova L.R.
, Ph.D. (Engineering), Associate Professor, Dean,
e-mail:
sarmilovanova@mail.ruStekolnikov M.V.
, Ph.D. (Engineering), Associate Professor, e-mail:
stekolnikov2008@mail.ruPrigorovsky A.S.
, Student, e-mail:
Michaelkheel@bk.ruEngels Technological Institute (branch) of Yuri Gagarin State Technical University of Saratov,
17 Svoboda square, Engels, Saratov Region, 413100, Russian Federation
Abstract
The paper addresses the axisymmetric thermolphysical problem of deep-hole drilling using the
proposed mathematical model of temperature calculation by the heat source method based on the
principles of space-time correspondence and local influence. The temperature in the tool-part
contact zone and the workpiece temperature distribution (temperature gradient) are calculated. The
adequacy of the proposed mathematical model is proved.
Keywords
heat source, deep-hole drilling, heat conduction, heat source method, space-time correspondence
principle