Общий каталог Yamawa 2022 - 2023 - страница 308

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 PO Spiral Fluted Taps (for blind hole) ① JIS Spiral Pointed 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 chips from the tap's cutting chamfer are pushed forward. This is optimal for through hole tapping where there are no obstructions created Cemented Carbide Taps by the chip. ⑤ ●Straight flutes are shallow so the taps strength is very high. Comparison of a PO and + PO tap Chips discharge of a PO tap Roll Taps ⑥ PO For low-speed machining on drilling ＋PO For CNC Machining center at medium speed machines and CNC machining centers machining. Synchronous feed is recommended. Standard tap series PO for through holes. Plus series + PO for through holes. Old Name New Name Size Range Old Name New Name Size Range Special Thread Taps Simple Inspection Tools ⑦ N-PO PO M1.2 〜 M50 N＋PO ＋PO M3 〜 M6 The PO and +PO use similar wording but have different The PO and +PO use similar wording but have different meanings. meanings. * Both are general-purpose spiral point taps developed for the processing environment of our customers. Pipe Taps ⑧ Application chart Slow Tapping Speed Fast Hard Hard 5m/min 10m/min 15m/min 20m/min Work piece Material Fully synchronous feed area 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 +PO Dies Steel S30C S30C Steel PO ⑩ S30C S30C Low Low Carbon Carbon Steel Steel Center Drills Centering Tools SS400 SS400 ⑪ Soft Soft 5m/min 10m/min 15m/min 20m/min It is an image diagram of a processable range. JIS ③-11