Общий каталог Yamawa 2021 - страница 403
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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
EH-CT
MS Material Specifi c Series
SP Carbide Taps for Hard Materials (<55HRC), Coated
FEATURES Carbide taps for high hardness steel (45 ÷ 55HRC).
HF 5P
SL Specifi c design, ultra fi ne micrograin, suitable coating for
COATING
CARBIDE THCHT long and stable tool life.
SYNCHRO
PO Recommended Tapping Speeds Depending On Materials ISO Vc (m/min) This item will be gradually replaced by:
H1 ≤5 H
. UH-CT page 400 H 1st choice I suitable ST
ROLL
DIN-EH-CT
Process Data
| CARBIDE | Work-material | X40CrMoV5 1 - 1.2344 |
| Still runningStill running EH-CT | ||
| DIN | Hardness | 50HRC |
| Size | M8x1.25 | |
| Breakage Competitor | ||
| LONG | Tapping speed | 6 m/min |
| Feed system | Full rigid | |
| Lubricant | non-soluble oil | |
| HAND | Work-material | X20Cr13 - 1.4021 |
| TAPS | EH-CT | Still runningStill running | ||
| Hardness | 52HRC | |||
| Size | M8x1.25 |
| Tapping speed | 6 m/min | Competitor | Breakage | ||
| EG (STI) | Feed system | Full rigid | |||
| Lubricant | non-soluble oil | ||||
| SPECIAL | Torque line in diff erent bored hole sizes | ||||
| THREADS, | EH-CT |
GAUGES Bored hole size 6.8mm (Actual 6.79mm) 6.9mm (Actual 6.89mm)
Size: M8 x 1.25 Thread engagement ratio Material: X40CrMoV5 1 - 1.2344 50 HRC
torque (N·cm) THREAD cutting speed: 6m/min thrust (N) feed: rigid
MILLS
Lubricant: non-soluble oil Beginning Enlarging bored hole size by 0.1mm can reduce the tapping torque by 10%. When tapping DIES materials of high hardness, Torque
torque (average) 770N·cm torque (average) 680N·cm it is recommendable to drill
and thrust lines the bored hole size as large as possible. CENTER
DRILLS After 50 holes tapping
info torque (average) 890N·cm torque (average) 780N·cm