Общий каталог Yamawa 2021 - страница 403

Carbide Taps Intro EH-CT MS Material Specific Series SP Carbide Taps for Hard Materials (<55HRC), Coated FEATURES Carbide taps for high hardness steel (45 ÷ 55HRC). 5P SL HF COATING Specific design, ultra fine micrograin, suitable coating for long and stable tool life. CARBIDE SYNCHRO THCHT Recommended Tapping Speeds Depending On Materials PO 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 EH-CT Still running Hardness 50HRC DIN Size M8x1.25 Competitor Breakage Tapping speed 6 m/min LONG 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, Bored hole size 6.8mm (Actual 6.79mm) 6.9mm (Actual 6.89mm) EH-CT GAUGES Thread engagement ratio Size: M8 x 1.25 Material: X40CrMoV5 1 - 1.2344 torque (N·cm) 50 HRC cutting speed: 6m/min THREAD 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 Torque materials of high hardness, 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 After DRILLS 50 holes tapping Technical info torque (average) 890N·cm torque (average) 780N·cm 404