Recommended Charactertistics For The Use Of Hss-E Machine Taps - ALFRA 18652 Bedienungsanleitung

RECOMMENDED CHARACTERTISTICS FOR THE USE OF
HSS-E MACHINE TAPS
1. Clearance Hole
For Clearance Holes we
recommend alongside mentioned
taps, which safely conveys
the chips out of the hole. The
specially shaped grinding
guarantees a safe re-mounting,
when the tap opted out of the
thread hole and returns in left
hand rotation.
2. Tapped Blind Holes
For Tapped Blind Holes we
recommend alongside
mentioned taps. The chips
are conveyed out of the hole
contrary to the cutting direction.
Important: do not run aground
with tap, as otherwise the
automatic return run won't be
activated. A correspondingly
larger pre-drilling depth must be
carried out.
In case of a disregard, the tap
must be manually released.
3. Pocket Holes up to 1,5 x D
Taps according to alongside
mentioned image are suitable.
Here as well, The chips are
conveyed out of the hole
contrary to the cutting direction.
Important: do not run aground
with tap. A corre- spondingly
larger pre-drilling depth must
be carried out.
In case of a disregard, the tap
must be manually released.
Beside our taps with reinforced shanks, other taps according to DIN 376 with tapper shank are suitable as well.
!
Please work with sufficient cooling, recommended for tapping by the
corresponding manufacturer.
10
Chip ejection downwards
through the bore
Chip ejection alongside the tool
Chip ejection alongside the tool
Tolerance acc. to ISO 2 6H
DIN 371 with
reinforced shank
Shape B, with spiral
face inclina- tion,
3,5 to 5 convolutions
DIN 376 with tapper
shank Tap depth 3 x D
DIN 371 with
reinforced shank
spiral grooved,
ca. 35° right hand
twist, Section shape C,
ca. 3 con- volutions
DIN 376 with
tapper shank Tap
depth 2,5 x D
DIN 371 with
reinforced shank
spiral grooved,
ca. 17° right hand
twist, Section C,
ca. 2 to 3
convolutions
DIN 376 with
tapper shank
Tap depth 1,5 x D