Общий каталог Yamawa 2021 - страница 387
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Обший каталог Yamawa 2016 - 2017
Краткое руководство Yamawa по каталогам
Общий каталог Yamawa 2022 - 2023
Каталоги Yamawa твердосплавные метчики для закаленной стали
SURZ
MP Multi Purpose Series
SP Thread Forming Taps for Stainless Steel, Coated
FEATURES Multi purpose forming taps for blind and through hole 2P application.
SL HSS-P
COATING
THCHT Special form on thread root to control the minor diameter of internal threads. Special lobe shape to reduce tapping torque. PO Recommended Tapping Speeds Depending On Materials ISO Vc (m/min) ISO Vc (m/min)
| P1 | 15÷30 | H | M1 10÷25 | H | |
| P2 | 15÷30 | H | M2 10÷25 | H | |
| ST | P3 | 15÷25 | H | ||
| P4 | 15÷25 | H | |||
| P7 | 10÷25 | H |
H 1st choice I suitable ROLL JIS JIS-SURZ Product Features
- Adopting the special form on thread root, SURZ controls the minor diameter geometry of internal threads.
CARBIDE
- Special lobe shape reduces the tapping torque. - High effi ciency can be obtained in thread forming of stainless steel parts. - The minor diameter geometry of internal threads can be adjusted modifying the bored hole size.
LONG
Process Data M2×0.4 Recommended bored hole diameter before tapping
| Work-material | AISI 304 - 1.4301 | M2x0.4 6H internal | |||
| HAND | thread minor diameter | ||||
| Tapping length | 5.2mm (Blind hole) | and tolerance | Unit : mm |
TAPS
| Size | Class | Recommended bored hole size |
| M1X0.25 | G4 | 0.90 |
| M1.2X0.25 | G4 | 1.10 |
| M1.4X0.3 | G4 | 1.28 |
| M1.6X0.2 | G3 | 1.52 |
| M1.6X0.35 | G4 | 1.46 |
| M1.7X0.35 | G4 | 1.56 |
| M2X0.4 | G4 | 1.82 |
| M2.3X0.4 | G4 | 2.12 |
| M2.5X0.45 | G4 | 2.30 |
| M2.6X0.45 | G5 | 2.40 |
| M3X0.5 | G5 | 2.77 |
| No.2-56UNC | G4 | 1.98 |
| No.4-40UNC | G5 | 2.55 |
| No.6-32UNC | G5 | 3.14 |
Bored hole ø1.85 - ø1.82 Min. 1.567
Machine Machining center (BT15) Tolerance 0.112 Feed Rigid Tapping direction Vertical
Lubricant Water soluble oil (×20)
THREADS, Bored hole size φ1.82 φ1.81
THREAD picture of internal
MILLS
| Seam shape | Small seams | No seam | ||
| DIES | Minor diameter | φ1.59 | φ1.58 |
Based o n our tapping test experiences the CENTER recommended bored hole diameters shown in Cross section
| DRILLS | picture of internal | above table have been calculated aiming at 90% |
| threads | thread engagement and tr ying to avoid tap | |
| breakage. | ||
| Technical | Seam shape | Small seams Regular seams Recommended bore hole diameter may change |
| because material deformation can slightly change | ||
| info | Minor diameter | φ1.60 φ1.62 depending on material, hardness, dimension of |
workpiece and tapping condition.