Общий каталог Yamawa 2021 - страница 595
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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
Intro PRML
SP
Premium Thread Mills
SL HF
COATING
CARBIDE
PO RECOMMENDED APPLICATIONS ISO ISO
| P1 | H | K1 | H | |
| P2 | H | K2 | H | |
| ST | ||||
| P3 | H | |||
| P4 | H | |||
| P5 | H | |||
| ROLL | P6 | H |
H 1st choice I suitable
Product Features
FEATURES Ultra-fi ne micrograin carbide Specific design and special coating for extraordinary thread surface fi nishing. Low cutting resistance and reduced side forces, allow to produce internal threads with high accuracy and straightness.
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YMW-PRML
| Work-materials | Vc (m/min) | Feed per tooth fz (mm/t) |
| Thermal Refined Steel 35 to 45HRC | 40÷100 | 0.02÷0.05 |
| Thermal Refined Steel 25 to 35HRC | 40÷100 | 0.03÷0.06 |
| GreyCast Iron | 40÷100 | 0.02÷0.05 |
| Nodular Cast Iron | 40÷100 | 0.02÷0.05 |
| AlloySteel | 40÷100 | 0.04÷0.06 |
| High Carbon Steel | 40÷100 | 0.04÷0.06 |
| Medium Carbon Steel | 60÷100 | 0.03÷0.05 |
| Low Carbon Steel | 60÷100 | 0.03÷0.05 |
The PRML feeds in the Z axis from the top as shown below.
Process Data
EG (STI) PRML 9.0P1.75 M12x1.75 Degradation of Pitch Diameter
| Work-material | 42CrMo4 - 1.7225(30HRC) |
| CuttingSpeed | 100 m/min |
| Feedper tooth fz | 0.06 mm/t |
| CuttingDepth | 24 mm |
| Hole diameter | ø10.3 |
| Number of insection | 1 |
| Machine | MachiningCenter(BT30) |
| Lubricant | Water soluble oil(x20) |
MILLS
YMW
DIES Internal coolant External coolant
No chips Excellent fi nishing Residual chips Bad fi nishing
CENTER DRILLS