GUHRING - Высокопроизводительные развертки HR500 - 2010 EN
для размещения заказа - guhring@guhring-tools.ru
HR 500 high-performance reamers
Technology and advantages
Dramatic time reduction coolant delivery is unconditionally Better than cermet,
up to factor 50 maintained even with re-ground tools. but without its disadvantages:
With the comrehensive HR 500 range By the way, the user need not fear a HR 500 solid carbide high-
Guhring provides high-performance negative influence on the clamping in performance reamers
reamers for virtually any application hydraulic or shrink fit chucks due to The performance level of solid carbide
task. Countless technical innovations the oil grooves.The remaining bearing HPC reamers HR 500 could so far
give HR 500 high-performance surface is more than sufficient for a only be achieved with cermet tools
reamers their exceptional properties, secure clamping. and had to be acquired with several
from which the user benefits from disadvantages. Cermet reamers are
maximum cutting rates and therefore Maximum performance only suitable for the machining of few
shortest machining times as well as in blind holes materials, whilst solid carbide reamers
optimum hole qualities. HR 500 high-performance reamers HR 500 can be applied in close to all
for the machining of blind holes are materials including soft and stainless
New ways of machining internally cooled with a central coolant steels as well as aluminium and AlSi-
through holes duct. Its especially large cross-section alloys.
The specially developed straight-flute ensures the optimal delivery of the Machining with interrupted cut or
geometry is unique with reamers for coolant to the cutting edge of the non-rigid machining conditions are
through holes. It enables extremely high tool. The straight-fluted tool geometry not possible at all with cermet tools
cutting rates also for deep holes. At the combined with the outstanding but with solid carbide in most cases
same time, the straight-flute geometry coolant supply again ensure the safe this is not a problem. In addition,
combined with the exceptional coolant evacuation of the optimally formed generally cermet reamers are
delivery supports the problem-free chips. comparatively more expensive.
chip evacuation ahead of the cutting
edge. Subsequently, the excellent The user gains multiple benefits with
reamed surface remains optimally the new Guhring HR 500 reamer:
preserved, as chips do not return back • extremely high cutting rates,
within the flutes. • considerable time saving and
therefore cost saving in the
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• broad range of application
• a standard program with favourable
prices as well as excellent stock
availability
• intermediate dimensions, that can
be produced quickly and cost-
effectively at any time.
• HR 500 ACTIVE special range with
4 weeks delivery for intermediate
sizes and stepped tools.
The optimal coolant supply is ensured Coolant pressure (bar) 80 HR 500 D 20
by patent applied for longitudinal 70 HR 500 D 14
grooves ground in the re-inforced 60 100 120 160 200 HR 500 D 10
HA shank, their position exactly 50 HR 500 S
synchronised to the spacing of the 40 Cutting speed (Vc)
reamer flute. This version of external 30 250
cooling has more than one advantage 20
over internal cooling via radial coolant 10
ducts:The solid portion is considerably
more rigid and a flow restriction is not 0
created through eroded or sintered 60
cooling ducts. In addition, chips
cannot become lodged - with this Coolant pressure - cutting speed
solution non existent - exit holes of the valid for standard dimensions
coolant ducts. Furthermore, the optimal
2 HR 500 guhring@guhring-tools.ru
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