Choice Of Cutting Speed; Specimen Holders; Choice Of Specimen Holder - struers Accutom-2 Gebrauchsanweisung

Choice of Cutting Speed

Specimen Holders

Choice of Specimen Holder

16
Accutom-2
Instruction Manual
Mount the cut-off wheel.
Put outer flange on (fig. 1.14).
Mount the flange screw (fig. 1.15) and tighten with a two-pin spanner. It
is sufficient just to hold on to the flanges when tightening the flange
screw.
After cutting the cut-off wheel should be dismantled in order to prevent
corrosion on the sides of the cut-off wheel. The screw may be a little
tight because of self-tightening, therefore a backstop with a hexagonal
key at the left side of the spindle may be a possibility.
In any case it must be ensured that keys in question are moved right to the
bottom of the holes before loosening or tightening.
On Accutom-2 it is possible to use 2 gear ratios between motor and spindle.
This results in two ranges of speed of the cut-off wheel, viz. 100-1000 rpm
and 300-3000 rpm. The switch is carried out manually by changing belts.
(See section 8.3).
As a general rule, the range 300-3000 rpm should always be used, as this
gives the fastest cutting, the smallest surface roughness and the best
planeness .
The torque of the shaft being three times larger at the range 100-1000 rpm,
this range should be used with 356CA and 357CA, and 551CA at manual
cutting.
The following specimen holders are available as accessories:
Specimen holder with parallel vice (CATCH). Opening between the
screws allows a specimen width of max. 26 mm. Screws of various
lengths are included so that it is possible to clamp specimens with
lengths of up to 40 mm.
Specimen holder with drop shaped cut-out (CATEL). Max. specimen
width 25 mm. For clamping of circular and rectangular specimens.
Clamping with one screw.
U-shaped specimen holder with 7 screws (CATIN). Max. specimen
width 32 mm. For clamping of very irregular specimens.
Specimen holder with goniometer device (CATNI). 1 x "15E ("0,1E), 1 x
"20E ("0,1E) and 1 x 360E (without dial). Can be displaced horizontally
by means of the micrometer screw of the cutting stand. The specimen
is affixed on a circular plate, Ø 13 mm.
IMPORTANT