Общий каталог Yamawa 2022 - 2023 - страница 66

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 MHSP Spiral Fluted Taps (for blind hole) ① JIS Z-PRO Spiral Taps for Medium Hard Carbon Steels Spiral Fluted Taps (for through hole) ② Specification <2D Coating Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials High carbon steels Alloy steels Thermal refined steels 高炭素鋼 合金鋼 調質鋼 10 20 10 20 10 20 〜 〜 〜 Hand Taps ( m / min ) ( m / min ) ( m / min ) ④ 25〜35HRC Product Features ●Ideal for forged products and tempered materials like S48C to S55C at 25 to 35HRC. ●Utilizing a unique high speed steel material and a special coating has created an excellent wear resistance with longer tool life. ●The special threaded portion design makes it effective against flute chipping at the full thread portion of the tap.  Cemented Carbide Taps This new design helps reduce tapping torque and frictional resistance to maintain the screw thread guide properties. ⑤ ●The new design allows for a longer tool projection to accommodate the discharge of the chips and prevents them from being entangled with the holder. Tapping Data Tapping conditions [M8×1.25] Roll Taps Workpiece Material SCM440 35HRC ⑥ Tapping Length 12mm MHSP Can Continue Tapping Speed 15m/min Machine Machining center (Vertical) Standard SP Worn-out Tapping Fluid Water soluble cutting fluid Special Thread Taps Simple Inspection Tools 0 100 200 300 400 500 600 ⑦ （Number of holes processed) MHSP Microphotography · Compatible with a wide range of workpiece machining. after Tapped 550 Holes Workpiece Material Target Tapping Speed (m/min) Pipe Taps ⑧ High Carbon Steel/Alloy Steel S50C/SCM440 35HRC 5 〜 15 High Carbon Steel/Alloy Steel S50C/SCM440 25HRC 5 〜 20 High Carbon Steel/Alloy Steel S50C/SCM440 raw material 5 〜 30 Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ JIS ①-31