Carbide tap, forming tap, Forming roll tap without male center.
Carbide forming taps, this tap is a new type of thread tapping tool
which uses metal plastic deformation principle to tap internal
thread. Forming is a chip free tapping technology, especially
suitable for tapping copper alloy and aluminum alloy with low
strength and good plasticity, and materials with low hardness and
high plasticity, such as stainless steel and low carbon steel, with
long service life.
Carbide forming taps with male center:
| Thread Size | Tap Limit | Lc | L | f1 | d |
| M6*1.0 | RH7-P | 4P | 62 | 19 | 6 |
| M6*1.0 | RH7-B | 2P | 62 | 19 | 6 |
| M8*1.25 | RH7-P | 4P | 62 | 13 | 6.2 |
| M8*1.25 | RH7-B | 2P | 75 | 13 | 6.2 |
| M10*1.5 | RH7-P | 4P | 75 | 15 | 7 |
| M10*1.5 | RH7-B | 2P | 75 | 15 | 7 |
| M10*1.25 | RH7-P | 4P | 75 | 15 | 7 |
| M10*1.25 | RH7-B | 2P | 75 | 15 | 7 |
| M12*1.75 | RH7-P | 4P | 82 | 17 | 8.5 |
| M12*1.75 | RH7-B | 2P | 82 | 17 | 8.5 |
| M12*1.5 | RH7-P | 4P | 82 | 17 | 8.5 |
| M12*1.5 | RH7-B | 2P | 82 | 17 | 8.5 |
| M12*1.25 | RH7-P | 4P | 82 | 17 | 8.5 |
| M12*1.25 | RH7-B | 2P | 82 | 17 | 8.5 |
Remark,2P for blind hole, 4p for through hole.
product picture:
Same as the carbide cutting tools gradually replaces the high speed
steel tools in turning, cemented carbide taps also begin to be more
and more used for thread hole tapping. Compared with HSS taps,
cemented carbide taps have high hardness and brittleness, so there
is a problem of chip removal when tapping with cemented carbide
taps. In spite of this, cemented carbide taps are super good for
tapping cast iron and aluminum alloy materials,tap damage form is
mainly mechanical wear out. Because a large number of cast iron and
aluminum alloy parts are applied in the automotive industry,
carbide taps are used more and more wider to obtain long tool life.
In the automotive industry, the reduction of the tool replacing
time is obviously an important factor, and the long tool life of
cemented carbide taps will minimize the time for replacing taps.
The performance of coated cemented carbide taps with small helix
angle is very good to tap aluminum alloy workpiece with silicon
content of 8% - 12%. The tap made of sub-micron grain cemented
carbide can increase the toughness without reducing its hardness.
It is very good in tapping hardened steel, plastics and difficult
to machine nickel base alloy.
