Общий каталог Yamawa 2022 - 2023 - страница 484

④ Hand Tap Series 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 SU-HT Spiral Fluted Taps (for blind hole) ① JIS Hand Taps for Stainless Steels Spiral Fluted Taps (for through hole) ② Specification Spiral Pointed Taps (for through hole) Oxide ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels Stainless steels 低炭素鋼 中炭素鋼 ステンレス鋼 5 10 〜 5 10〜 〜 5 Hand Taps ( m / min ) ( m / min ) ( m / min ) ④ Product Features ●The SU-HT is a hand tap suitable for machining of stainless steel, chromium steel, molybdenum steel. These materials have a tendency to work harden easily. Cemented Carbide Taps ●To prevent welding, the taps surface is oxidized. ⑤ Tapping Data Tapping Conditions［Ｍ8×１.25］ Workpiece Material SUS304 10mm thick SU-HT Roll Taps Tapping Speed 5m/min （HSS P3 4P） ⑥ Can Continue Bored Hole Size φ6.8 through hole HT OX Cutting Fluid JIS 2, No. 13 （HSS P3 5P） Machinery Type Tapping machine HT Special Thread Taps Simple Inspection Tools The figure on the right shows test data comparing the tool life （HSS P3 5P） ⑦ in tapping SUS 304 with an oxidized standard M8 × 1.25, a standard bright hand tap and the oxidized SU - HT tap. 0 100 200 300 400 500 （Number of holes processed） Pipe Taps ⑧ Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ JIS ④-87