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Actual Problems in Machine Building. 2015. N 2
Innovative Technologies
in Mechanical Engineering
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17. Янюшкин А.С., Ереско С.П., Лобанов Д.В., Сурьев А.А., Кузнецов А.М.
Устройство для комбинированной электроалмазной обработки с непрерывной правкой круга:
пат. 2239525 С1. Рос. Федерация; заявл. 25.02.03; № заявки 2003105413/02, опубл. 10.11.2004.
18. Янюшкин А.С., Попов В.Ю., Янюшкин Р.А. Элементы модернизации станков
шлифовальной группы под процессы электроалмазной обработки // Труды Братского
государственного университета. Сер. Естественные и инженерные науки. 2000. Т. 1. С. 189-
190.
SURFACE ROUGHNESS OF HIGH SPEED TOOLS AFTER ELECTRO-DIAMOND
MACHINING
Popov
V.Yu.
, Ph.D. (Engineering), Associate Professor, e-mail:
berkutoff@rambler.ruBratsk State University, 40 Makarenko st., Bratsk, 665709, Russian Federation
Abstract
The purpose of this research was to determine efficient conditions for electrochemical grinding
of tools from high speed steel with diamond grinding wheels based on metallic bonds.
Technological characteristics of combined electro-diamond machining (CEDM) and their impact on
the quality of the surface layer were established and theoretically grounded. The dependences of the
machined surface roughness with regard to internal relations between electrical (dressing and
etching currents) and mechanical factors were found during the experiments. The research has
shown that the CEDM technology provides a low roughness (R
a
= 0.05 - 0.08 µm). The application
of the CEDM technology in high-precision machining of advanced nanostructured and
nanostrengthened materials promotes its further development.
Keywords
Surface roughness, high speed steels, combined electro-diamond grinding, diamond wheels,
metal bonds, density of anode current, adhesive-diffusion blockage