Общий каталог Yamawa 2022 - 2023 - страница 148

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Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools JIS ① Spiral Fluted Tap Series for blind hole Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk JIS ① SU2-SP Spiral Fluted Taps for Tough Stainless Steels ② Specification Oxide ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels Alloy steels Stainless steels 低炭素鋼 中炭素鋼 高炭素鋼 合金鋼 ステンレス鋼 5〜20 5〜20 5〜20 5〜20 5〜15 ④ (m/min) (m/min) (m/min) (m/min) (m/min) Product Features ●The SU2-SP is a spiral flute tap for hard to cut stainless steel that is optimum for blind hole BLF Shape ⑤ machining of stainless steel such as SUS 316 and SUS 317.●It is a special design of full threads for the first few threads and the balance are half the thread height. ●With this special shape, it is effective in the prevention of flute chipping of the full threads. It reduces tapping torque and has good abrasion resistance while allowing to maintain the screw thread guide specifications. ●It has improved chip ejection from the unique flute design. ⑥ Tapping Data Thread Size [M12×1.75] Workpiece Material SUS316 SU2-SP Bored Hole Size φ10.3 Can Continue Tapping Length 25mm blind hole ⑦ Machinery Type CNC tapping machine SU-SP Tapping Speed 8m/min 0 200 400 600 800 Tapping Fluid Non-water soluble cutting oil （Number of holes processed.） ⑧ Characteristics of stainless steel ・ It work hardens easily. Chip welding occurs frequently. Type of Material Element Content (%) Chip ejection is poor.・It tends to shrink. Ni Cr ・Tool friction tends to occur. SUS303 8.00 〜 10.00 17.00 〜 19.00 ⑨ SUS304 8.00 〜 10.50 18.00 〜 20.00 In general wear, austenitic stainless steel have the characteristics described above and are regarded as difficult to cut materials. Among SUS316 10.00 〜 14.00 16.00 〜 18.00 these stainless steels there are a few that have a higher Ni content. SUS317 11.00 〜 15.00 18.00 〜 20.00 Austenitic stainless steel with the Ni content of more than 10% such as SUS 316 is regarded as "difficult-to-cut stainless steel". ⑩ ⑪ JIS ①-113