Общий каталог Yamawa 2021 - страница 403

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Carbide Taps Intro EH-CT MS Material Specific Series SP Carbide Taps for Hard Materials (<55HRC), Coated FEATURES SL HF COATINGCARBIDE SYNCHRO 5P Carbide taps for high hardness steel (45 ÷ 55HRC).Specific design, ultra fine micrograin, suitable coating forTHCHTlong and stable tool life. 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 DIN Hardness 50HRC EH-CT Still running Size M8x1.25 LONG Tapping speed 6 m/min Competitor Breakage Feed system Full rigid Lubricant non-soluble oil HAND Work-material X20Cr13 - 1.4021 TAPS Hardness 52HRC EH-CT Still running Size M8x1.25 Tapping speed 6 m/min Competitor Breakage EG (STI) Feed system Full rigid Lubricant non-soluble oil SPECIAL Torque line in different bored hole sizes THREADS,GAUGES Bored hole sizeThread engagement ratio6.8mm (Actual 6.79mm) 6.9mm (Actual 6.89mm) EH-CTSize: M8 x 1.25Material: X40CrMoV5 1 - 1.2344 torque (N·cm) 50 HRC THREAD thrust (N) cutting speed: 6m/minfeed: 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, Torqueandthrust lines torque (average) 770N·cm torque (average) 680N·cm it is recommendable to drillthe bored hole size as large as possible. CENTERDRILLS After50 holes tapping Technical info torque (average) 890N·cm torque (average) 780N·cm 404