In forming tap processing, burrs form on the hole entrance , resulting in a raised shape.
In order to suppress the burr of the hole entrance , it is effective to perform a chamfer of 60~70° (full-width) in advance on the pilot hole of the forming tap .
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No : 582
公開日時 : 2019/02/26 18:10
更新日時 : 2024/08/28 02:29
In forming tap , the pilot hole is also enlarged as it becomes larger.
Since the RH number is +0.013mm for every 1 increase,
In the case of STD+3, STD+0.039mm is a guide.
For that reason, please try from a larger size.
No : 583
公開日時 : 2019/02/26 18:10
更新日時 : 2022/06/09 11:43
PT threaded pilot hole diameter
Straight holes are recommended for pilot holes.
If you want to increase the pilot hole diameter when tapping PT screws than the catalog value, consider that the allowable range is up to +0.3 mm from the catalog recommended value for nomi
No : 639
公開日時 : 2019/02/26 18:10
更新日時 : 2024/08/28 02:29
The cutting conditions when machining SS400 with TPT, PT1/4, a tap for tapered thread machining for pipes, are as follows:
A cutting speed of 3~6m/min is recommended.
The reference diameter of 13.157 mm is calculated as the tool diameter.
For example, if the cutting speed is 4 m/min, which is within the ra
No : 641
公開日時 : 2019/02/26 18:10
更新日時 : 2022/04/27 16:02
What is the processing depth of tapered taps for pipes?
The number of reference diameter positions in the catalog is a guide to the machining depth.
Example: Processing depth of tapered taps for pipes PT3/8
Tapered tap TPT for pipes (long thread type) The machining depth for machining PT3/8 threads is 21 mm.
Tapered Taps for Pipes S-TPT
No : 642
公開日時 : 2019/02/26 18:10
更新日時 : 2024/08/28 02:29
A interrupted -shaped tap is a type of tap for tapered threads, in which the peak of the complete tap thread is removed so that it jumps into a single peak.
Tapered taps for pipes perform thin cutting even in fully threaded parts.
By reducing the number of threads in the thinly cut part, the interrupted typ
No : 647
公開日時 : 2019/02/26 18:10
更新日時 : 2022/06/16 14:50
カテゴリー：
General
NPTF has shallow valleys and sharp mountains.
They crush each other and fit together, resulting in screws that do not require a sealing material.
Therefore, the NPT and NPTF cannot share tools.
No : 648
公開日時 : 2019/02/26 18:10
更新日時 : 2020/09/15 11:49
カテゴリー：
General