Общий каталог Yamawa 2022 - 2023 - страница 378

③ Spiral Pointed Tap Series for through hole Overall length L Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS EH-PO Spiral Fluted Taps (for blind hole) ① JIS Spiral Pointed Taps for Hard-to-Machine Materials Spiral Fluted Taps (for through hole) ② Specification Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials High carbon steels Thermal refined steels Thermal refined steels 高炭素鋼 調質鋼 調質鋼 5 10 〜 5 10 〜 〜 5 Hand Taps ( m / min ) ( m / min ) ( m / min ) ④ 25〜35HRC 35〜45HRC Product Features ●The EH-PO taps are suitable for high hardness materials from 30 to 45 HRC in high carbon steel, alloy steel forging, tempering material and mold materials. Cemented Carbide Taps ●Tool life is greatly improved using a cutting edge shape suitable for difficult to machine materials. The tap exhibits excellent wear resistance. ⑤ ●For through hole applications. Tapping Data Processing conditions [Ｍ10×１.25 P4] Roll Taps Workpiece Material S55C/A hub ⑥ Bored Hole Size φ8.8 EH-PO Tapping Length 11mm（Through hole） Can continue Tapping Speed 10m/min Machinery Type Vertical machining center (asynchronous) Competitors PO Wear Special Thread Taps Simple Inspection Tools Holder With tension 0 100 200 300 400 500 ⑦ Tapping Fluid Water soluble cutting fluid （Number of holes processed.） Recommendation chart Pipe Taps ⑧ Slow Tapping Speed Fast Work piece 1m/min 3m/min 5m/min 10m/min 15m/min Work piece Material Material 60HRC 60HRC ※UH-CT、EH-CT Use a Thread Mills Premium Thread Mills UH-CT High High ⑨ 55HRC machine with 55HRC Hardness synchronous lead feed. Hardness 55HRC 55HRC Material Material EH-CT 45HRC 45HRC Tempered 45HRC 45HRC Tempered Material Material 25HRC EH-HT 25HRC Dies EH-PO ⑩ Tool Steel SKS・SKD SKS・SKD Tool Steel Alloy Alloy SCM・SCｒ SCM・SCｒ Steel Steel High HC + SP High Carbon HC - SP Carbon Steel S45C HC + PO S45C Steel Medium S45C HC - PO S45C Medium Center Drills Centering Tools Carbon Carbon ⑪ Steel S30C S30C Steel 1m/min 3m/min 5m/min 10m/min 15m/min Processing range chart. JIS ③-81