Общий каталог Yamawa 2022 - 2023 - страница 70

① Spiral Fluted Tap Series for blind 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 SP Spiral Fluted Taps (for blind hole) ① JIS Spiral Fluted Taps Spiral Fluted Taps (for through hole) ② Specification Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials Medium carbon steels High carbon steels 中炭素鋼 高炭素鋼 5 10〜 5 10 〜 Hand Taps ( m / min ) ( m / min ) ④ Product Features ●The spiral flutes of the SP tap pull the small continuous curly chips back towards the tapping chuck and prevents chips from clogging in the hole. These taps are ideal for blind hole tapping. Cemented Carbide Taps ●These taps cut easily into softer materials. ⑤ ●Intermittent cutting into pilot holes with a keyway or grooves is possible. ●The flute strength is inferior to the HT tap. The HT flute shape is more suitable for high hardness materials. Chip evacuation with a SP tap. The difference between a SP tap and a + SP tap Roll Taps ⑥ SP For low speed machining on drilling ＋SP Medium speed machining/Synchronous feed machines and machining centers. tapping is recommended on Machining Centers. Standard tap series SP (for blind holes). Plus series + SP for blind holes. Special Thread Taps Simple Inspection Tools ⑦ Old name New Name Size Range Old Name New Name Size Range N-SP SP M1.2 〜 M64 N＋SP ＋SP M2 〜 M12 Effective tapping on drill machines. Effective for use with synchronous feed (rigid) tapping on CNC machining centers. Pipe Taps * Both are general purpose spiral flute taps developed for varying tapping environments. ⑧ Speed chart Slow Tapping Speed Fast Hard Hard 5m/min 10m/min 15m/min 20m/min Perfect synchronous feed territory Work Piece Material Work Piece Material Thread Mills Premium Thread Mills Alloy SCM SCM Alloy ⑨ Steel SCr SCr Steel High S55C S55C High Carbon Carbon Steel S45C S45C Steel S45C S45C Medium Medium Carbon Carbon Dies Steel SP +SP Steel ⑩ S30C S30C S30C S30C Low Low Carbon Carbon Steel Steel Center Drills Centering Tools ⑪ SS400 SS400 Soft Soft 5m/min 10m/min 15m/min 20m/min Tapping speed range by tap series. JIS ①-35