NEW TYPES OF DIAMOND TOOLS FOR MACHINING
V. F. Gerasimov
and B. V. Martynov
Translated from Novye Ogneupory, No. 7, pp. 32 – 33, July, 2007.
Original article submitted April 9, 2007.
The results of the development of several types of grinding tools of a large diameter (up to F700 mm) for treat
ment of high-alumina and periclase refractories are described, as well as the development of special drills for
obtaining core samples from refractories in accordance with the certification requirements, profiled mills for
treating corundum-graphite products without cooling.
The transition to higher-efficiency domestic and im
ported machines calls for new types of diamond tools to treat
refractory products. New requirements are imposed on some
types of products, in particular, that of mechanical treatment
without cooling. In 2005 – 2006 the Vyatich Research Center
developed and implemented the production of new special
types of diamond tools for the refractory industry; the prob-
lem was that such tools were produced in single numbers.
One of the first non-standard diamond tools produced in that
period was a grinding wheel of diameter F600 for treating
periclase refractories without cooling at the Magnezit Works.
In 2004 – 2005 we supplied to the former company diamond
grinding wheels F500 for rough grinding of slide gates.
In 2006 the Magnezit Works formulated a new target: to de
velop diamond tool F700 for grinding slide gates with cool
ing, which would have different types of diamond grains in
one diamond wheel. For this purpose we developed a dia
mond grinding wheel with three radially located rows of seg
ments (Fig. 1); each consecutive row was arranged on a
slight elevation compared to the preceding row. By placing
this wheel at a slight angle to the cutting plane, the segment
at the opposite diameter of the wheel do not contact the
treated surface and only the three first rows of segments con
tacting the cutting plane participate in the cutting process.
The third inner row of segments contains finer diamond
grains; as the result, we achieve better purity of the treated
surface before subsequent finish grinding and, accordingly,
improve the efficiency of finish grinding of slide gates. Such
tools are currently supplied to the Magnezit Works. The close
cooperation between the Vyatich Research Center and the
Magnezit Works makes it possible to develop new types of
efficient diamond tools.
In addition to supplying diamond grinding wheels, to-
gether with the specialists from the Magnezit Works we have
developed special drills for boring samples for testing ac-
Refractories and Industrial Ceramics Vol. 48, No. 3, 2007
1083-4877/07/4803-0168 © 2007 Springer Science+Business Media, Inc.
Vyatich Research Center, Russia.
Fig. 1. Diamond grind
ing wheel with three ra
dially located rows of
Fig. 2. Combined drills
for boring samples for