EN TW
 tel. +886-2-278-45675 (1-30)  fax.+886-2-278-45676  e-mail:     info@rgt.tw

COLD FORMING ROLL TAPS FOR THREAD ROLLING MACHINES

 


 


Benefits of using chipless taps

Chipless taps (rolling taps, cold forming taps) are recommended to be used when producing threads by plastic deformation (rolling) in parts made of non-ferrous and ferrous metals with high plasticity. These materials include: aluminum and its alloys, copper, brass, bronze with a high copper content, zinc and its alloys, low-carbon and high-plastic stainless and heat-resistant steels. Compared to cutting taps, forming taps have greater strength, provide accurate threads with low surface roughness, and increase thread strength (up to 20%).

Their main difference from cutting taps is the absence of longitudinal grooves that form cutting edges. In addition, the champfer on these taps is significantly shorter. At the end of the threaded part of the fluteless taps, there are small symmetrically located coolant grooves.

Chipless taps are much stronger than usual taps, their breakages are very rare and there are almost no defects of parts due to taps breakdowns. Thanks to the long threaded part, the tap can be re-sharpened several times. Thus, the service life of the chipless tap is much longer than cutting tap.

High productivity in threading is the main advantage of chipless taps. They are used for thread forming not only in through holes, but also in blind holes. The thread rolling profile is formed by pressing the tool into the workpiece material and extruding part of the material into the tool cavity.


Outlook & Drawing of Cold Forming Roll Taps for Non-Ferrous Alloys

Cold Forming Roll Taps for Non-Ferrous Alloysvanadium-containing high-speed steel with Homo Processingvanadium-containing high-speed steel with Homo Processing
taps for threads smaller than M6


Cold Forming Roll Taps for Non-Ferrous Alloysvanadium-containing high-speed steel with nitride coating
taps for threads M6 and more





G - Chamfer Length: 2 threads for blind holes (B) or 4 threads for through holes (P)
H - lubricating groove

Cold Forming Roll Taps for Non-Ferrous Alloys

Metric thread
Thread SpecificationA
Total Length
B
Thread Length
C
Shank Dia.
E
square length
F
square
number of facets
sizetolerancesizetolerancesizetolerancesizetolerance
M 240±0.712±130
-0.04
52.50
-0.1
4
   2.544 〞14 〞 〞 〞 〞 〞 〞 〞
   2.6 〞 〞 〞 〞 〞 〞 〞 〞 〞 〞
M 346 〞9 〞4 〞63.2 〞4
   3.548 〞 〞 〞 〞 〞 〞 〞 〞 〞
   452 〞10 〞5 〞74 〞 〞
   4.555 〞 〞 〞 〞 〞 〞 〞 〞 〞
   560 〞11 〞5.5 〞 〞4.5 〞 〞
   5.560 〞 〞 〞 〞 〞 〞 〞 〞 〞
   662 〞12 〞6 〞 〞 〞 〞 〞
   765 〞16 〞6.2 〞85 〞 〞
   870±1.218±1.4 〞 〞 〞 〞 〞 〞
   972 〞 〞 〞7 〞 〞5.5 〞 〞
  1075 〞19 〞 〞 〞 〞 〞 〞 〞
  1180 〞23 〞8 〞96 〞 〞
  1282 〞 〞 〞8.5 〞 〞6.5 〞 〞
1488 〞25 〞10.5 〞118 〞6
  1590 〞 〞 〞 〞 〞 〞 〞  〞 〞
  1695 〞27 〞12.50
-0.05
13100
-0.15
 〞
All table dimensions in mm.


American Thread
Thread SpecificationA
Total Length
B
Thread Length
C
Shank Dia.
E
square length
F
square
number of facets
sizetolerancesizetolerancesizetolerancesizetolerance
No .242±0.713±130
-0.04
52.50 -0.14
No .344 〞14 〞 〞 〞 〞 〞 〞 〞
No .4 〞 〞15 〞 〞 〞 〞 〞 〞 〞
No .546 〞9 〞4 〞63.2 〞 〞
    648 〞 〞 〞 〞 〞 〞 〞 〞 〞
    852 〞10 〞5 〞74 〞 〞
   1060 〞11 〞5.5 〞 〞4.5 〞 〞
   12 〞 〞 〞 〞 〞 〞 〞 〞 〞 〞
U 1 /  462 〞14±146 〞 〞 〞 〞 〞
  5 / 1670±1.218 〞6.1 〞85 〞 〞
  3 /  875 〞21 〞7 〞 〞5.5 〞 〞
  7 / 1680 〞23 〞8 〞96 〞 〞
  1 /  285 〞25 〞9 〞107 〞 〞
  9 / 1690 〞 〞 〞10.5 〞118 〞6
  5 /  895 〞27 〞120
-0.05
129 〞 〞
All table dimensions in mm.


Ordering of Cold Forming Roll Taps for Non-Ferrous Alloys

Metric thread
RG NO.Thread SizeTAP LimitChamfer (G)Total Length (A)Thread Length (B)Shank Dia. (C)
1000012714M3 X 0.5RH5P4694
1000012734M4 X 0.7RH6P52105
1000012735M4 X 0.7RH6B52105
1000012744M5 X 0.8RH6P60115.5
1000012745M5 X 0.8RH6B60115.5
1000012756M6 X 1RH7P62126
1000012757M6 X 1RH7B62126
1000128945M8 X 1.25RH6P70186.2
1000128946M8 X 1.25RH6B70186.2
1000012776M8 X 1.25RH7P70186.2
1000012777M8 X 1.25RH7B70186.2
1000012791M8 X 1RH7B70186.2
1000012808M10 X 1.5RH7P75197
1000012809M10 X 1.5RH7B75197
1000128947M10 X 1.25RH6P75197
1000128948M10 X 1.25RH6B75197
1000012822M10 X 1.25RH7P75197
1000012823M10 X 1.25RH7B75197
1000128951M12 X 1.75RH7P82238.5
1000128952M12 X 1.75RH7B82238.5
1000012846M12 X 1.75RH8P82238.5
1000012847M12 X 1.75RH8B82238.5
1000128943M12 X 1.75RH9P82238.5
1000128944M12 X 1.75RH9B82238.5
1000012860M12 X 1.5RH7P82238.5
1000012861M12 X 1.5RH7B82238.5
1000128941M12 X 1.5RH8P82238.5
1000128942M12 X 1.5RH8B82238.5
1000012876M12 X 1.25RH7P82238.5
1000012877M12 X 1.25RH7B82238.5
1000012894M12 X 1RH7P82238.5
1000012895M12 X 1RH7B82238.5
1000012912M14 X 2RH10P882510.5
1000012913M14 X 2RH10B882510.5
1000012926M14 X 1.5RH9P882510.5
1000012927M14 X 1.5RH9B882510.5
1000012940M16 X 2RH10P952712.5
1000012941M16 X 2RH10B952712.5
1000012954M16 X 1.5RH9P952712.5
1000012955M16 X 1.5RH9B952712.5
1000012968M18 X 2.5RH11P1002914
1000012969M18 X 2.5RH11B1002914
1000012984M18 X 1.5RH10P1002914
1000012985M18 X 1.5RH10B1002914
1000012986M20 X 2.5RH11P1053015
1000012987M20 X 2.5RH11B1053015
1000012988M20 X 1.5RH10P1053015
1000012989M20 X 1.5RH10B1053015
All table dimensions in mm.



Contacts
© 2007 - 2024 TAIWAN METIZ ALLIANCE