GUHRING - Инструмент для снятия заусенцев и града - 2008 EN

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De-burring tools

Solid carbide de-burring spiral EW 100 S

For internal de-burring through the central hole, Guhring        in the cross-hole is subsequently accurately and cleanly
has developed the solid carbide de-burring spiral EW 100         peeled off at the root. Thereby very small chips are created
S. The slotted tool is available as a semi-standard tool         that can be evacuated problem-free from the hole.
with immediate effect, i. e. inside the diameter ranges
specified in the adjacent table tools can be supplied in         Pre-requisite for the development of the de-burring spiral
one-hundreth increments with the respective shank and            EW 100 S was a carbide as tool material that possesses
length dimensions as well as number of cutting edges             an accordingly low rigidity and permits the necessary
with short delivery times and at favourable prices. In           deformation in the cutting edge area. Thanks to Guhring‘s
addition, at any time other customer specific solutions          carbide expertise in development and production, then a
as special tools, for example, with further reach or other       carbide with such special attributes is available.
shank diameters.

The principle of function of the de-burring spiral EW 100 S      Cutting parameters de-burring spiral
is based on the pre-tension of the grooved cutting portion.
In the area of the cutting portion, the de-burring spiral has     range (mm)  Vc m/min                fu (mm)
a fractionally larger diameter than the bore to be machined.            <8       15 - 25              0.2 - 0.3
Through the run-on, the grooved cutting portion is pressed              8       15 - 25              0.4 - 0.8
together on entry into the hole to be machined and thereby
pre-tensioned. The pre-tension ensures that inside the bore
and especially in the area of the cross-hole to be de-burred
there is a perfect fit of the cutting spiral at the wall of the
bore or the edges of the cross-hole respectively. The burr

                                                                 Important:
                                                                 Please note, that the cutting parameters are recommen-
                                                                 dations.They can be adapted to higher and lower cutting
                                                                 parameters.

Die Funktionsweise

                                                                 Entry:
                                                                 Entry feed with max. helix of the tool up to the rst cross-hole.

                                                                                                                De-burring:
                                                                                                                Moving over the cross-hole with the specied operating feed.Thereby, at
                                                                                                                least 50% of the head length must pass the cross-hole.

                                                                                                                 Chip is peeled off
                                                                                                                Exit:
                                                                                                                Turning clockwise with approx. 2 - 5 x feed rate or turning anti-clockwise
                                                                                                                with helix

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