ZET-B (Unified Threads) | Spiral Fluted Taps for Titanium Alloys | YAMAWA
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THB 717.97
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YAM-ZET-B Unified Threads
Product Features
- The tap is produced from a high grade powder high speed steel that is excellent for heat resistance and wear resistance.
- The cutting edge geometry helps prevent material shrinkage. The the spiral flute design helps pull the chips ou of the hole to
allow the cutting heat to be carried out. - Appropriate flute shape for titanium alloy is utilized and the ejection of the chips is smooth.
- A nitride surface treatment is performed for added wear resistance
- Considering the shrinkage of the internal screw thread, the tap is produced to a moderate oversize condition.
Tapping Data
Tapping conditions [Ｍ12×１.75]
| Work Piece Material | Ti-6Aℓ-4V |  |
| Bored Hole Size | φ5.0 | |
| Tapping Length 25mm | 12mm | |
| Tapping Speed | 8m/min | |
| Machinery Type | CNC tapping center | |
| Tapping Fluid | Water soluble cutting fluid |
Characteristics of titanium alloy
It is mainly composed of titanium that has a high strength and is light weight. It has excellent heat resistance. There are various
types of titanium alloys such as Ti - 5Aℓ - 2.5Sn, Ti - 5Ta, and the most popular Ti - 6Aℓ - 4V which is commonly used due to its
good characteristics.
Examples of problems in tapping
- Titanium alloys have high temperature strength and the thermal diffusion is small, so abrupt abrasion occurs on the tap.
- The spring back on internal screw threads may cause diameters to shrink and the tap may be crimped causing breakage.
- Chip welding occurs easily on the cutting chamfer of the tap and the threads flank surface. The finished thread surface of the
internal screw thread also becomes rough and coarse.
Specification
Tapping Speeds depending on Materials
Segment：1C
|
Size |
Class |
Code |
Chamfer |
L (mm) |
ℓt (mm) |
ℓ (mm) |
ℓn (mm) |
ℓs (mm) |
Ds (mm) |
K (mm) |
ℓk (mm) |
No. of flutes |
TYPE |
|
For Unified Threads |
|||||||||||||
|
No.4-40UNC |
P2 |
ZETBMQUN4H |
3P |
46 |
5 |
9 |
14 |
25 |
4 |
3.2 |
6 |
3 |
1 |
|
No.6-32UNC |
P3 |
ZETBMRUN6J |
3P |
52 |
7 |
11 |
17 |
27 |
5 |
4 |
7 |
3 |
1 |
|
No.8-32UNC |
P3 |
ZETBMRUN8J |
3P |
60 |
7 |
13 |
22 |
31 |
5.5 |
4.5 |
7 |
3 |
1 |
|
No.10-24UNC |
P3 |
ZETBMRUNAM |
3P |
60 |
9 |
13 |
22 |
32 |
5.5 |
4.5 |
7 |
3 |
1 |
|
No.10-32UNF |
P3 |
ZETBMRUNAJ |
3P |
60 |
9 |
13 |
22 |
32 |
5.5 |
4.5 |
7 |
3 |
1 |
|
1/4-20UNC |
P3 |
ZETBMRU04N |
3P |
62 |
11 |
15 |
26 |
33 |
6 |
4.5 |
7 |
3 |
1 |
|
1/4-28UNF |
P3 |
ZETBMRU04K |
3P |
62 |
11 |
15 |
26 |
33 |
6 |
4.5 |
7 |
3 |
1 |
|
5/16-18UNC |
P3 |
ZETBMRU05O |
3P |
70 |
- |
12 |
- |
36 |
6.2 |
5 |
8 |
3 |
2 |
|
5/16-24UNF |
P3 |
ZETBMRU05M |
3P |
70 |
- |
12 |
- |
36 |
6.2 |
5 |
8 |
3 |
2 |
|
3/8-16UNC |
P3 |
ZETBMRU06P |
3P |
75 |
- |
13 |
- |
38 |
7 |
5.5 |
8 |
3 |
2 |
|
3/8-24UNF |
P3 |
ZETBMRU06M |
3P |
75 |
- |
13 |
- |
38 |
7 |
5.5 |
8 |
3 |
2 |
|
7/16-14UNC |
P3 |
ZETBMRU07Q |
3P |
82 |
- |
13 |
- |
42 |
8.5 |
6.5 |
9 |
3 |
2 |
|
7/16-20UNF |
P3 |
ZETBMRU07N |
3P |
82 |
- |
13 |
- |
42 |
8.5 |
6.5 |
9 |
3 |
2 |
|
1/2-13UNC |
P3 |
ZETBMRU08R |
3P |
88 |
- |
15 |
- |
45 |
10.5 |
8 |
11 |
3 |
2 |
|
1/2-20UNF |
P3 |
ZETBMRU08N |
3P |
88 |
- |
15 |
- |
45 |
10.5 |
8 |
11 |
3 |
2 |
|
5/8-11UNC |
P3 |
ZETBMRU10U |
3P |
95 |
- |
18 |
- |
48 |
12.5 |
10 |
13 |
4 |
2 |
|
5/8-18UNF |
P3 |
ZETBMRU10O |
3P |
95 |
- |
14 |
- |
48 |
12.5 |
10 |
13 |
4 |
2 |
|
3/4-10UNC |
P4 |
ZETBMSU12V |
3P |
105 |
- |
20 |
- |
50 |
15 |
12 |
15 |
4 |
3 |
|
3/4-16UNF |
P4 |
ZETBMSU12P |
3P |
105 |
- |
14 |
- |
50 |
15 |
12 |
15 |
4 |
3 |
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