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Актуальные проблемы в машиностроении. 2016. №3
Инновационные технологии
в машиностроении
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14.
Ваксер Д.Б
. Пути повышения производительности при шлифовании. – М.; Л.:
Машиностроение, 1964. – 122 с.
15.
Ефимов В.В
. О влиянии технологической среды на условия перехода от внешнего
трения к микрорезанию // Трение и износ. – 1988. – Т. 9, № 1. – С. 150–154.
16.
Коротков А.Н
. Эксплутационные свойства абразивных материалов: монография. –
Красноярск: Изд-во Красноярского ун-та, 1992. – 122 с.
IMPROVING OF ABRASIVE THE EFFICIENCY OF LAPPING OPERATIONS
THROUGH THE APPLICATION OF GRAINS WITH THE CONTROLLABLE FORM
Korotkov A. N.
,
D.Sc.(Engineering), Professor, e-mail:
korotkov.a.n@mail.ruVidin D. V.
, Senior Lecturer, e-mail:
dionis.vidin@gmail.comKuzbass State Technical University named after T.F. Gorbatchev, 28 Vesennaya st., Kemerovo,
650000, Russian Federation
Abstract
Lapping is used for finishing of details. But this type of treatment has a significant drawback.
Which is that for abrasive pastes diamond and abrasive grains with disordered and arbitrary shape
are used. As a result, grains do not work or make a minimum contribution to the overall treatment
process.
We propose new compositions abrasive lapping pastes. They are differ from the conventional
ones in using of grains with a controlled form. These grains are prepared through the use of abrasive
masses vibration division technology. Quantitative control of grain form in fractions after the
separation was carried out through the use of the concept of form factor. It is the ratio of the
projections described and inscribed circles in the contours of grains. To determine the shape factor
specially designed computer programs are used. They are able to handle large amounts of
experimental data (at least 100 pieces of individual grains). We describe the results of tests of new
compositions of pastes with different schemes of lapping. The results show that purposeful choice
of the form of grains can achieve a significant improvement in the cutting ability of abrasive
lapping pastes and surface quality of processing parts.
Keywords
abrasive valve lapping, grinding grains, form factor, circuit lapping, cutting ability, surface
roughness treatment