Общий каталог Yamawa 2022 - 2023 - страница 584

⑥ Roll Tap Series Overall length L Thread length ℓ Thread + Neck length ℓn Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS MHRZ Spiral Fluted Taps (for blind hole) ① JIS Roll Taps for Medium Hardness Carbon Steels Spiral Fluted Taps (for through hole) ② Specification Coating 〜 Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials Medium carbon steels High carbon steels Alloy steels Thermal refined steels 中炭素鋼 高炭素鋼 合金鋼 調質鋼 10 30 10 30 10 30 10 20 〜 〜 〜 〜 Hand Taps ( m / min ) ( m / min ) ( m / min ) ( m / min ) ④ 25〜35HRC Product Features ●Torque reduction is achieved from the new design and specifications. ●Tool life is dramatically improved with superb tool materials and coatings offering excellent wear resistance. ●Stable screw thread tapping in thermal refined material up to 35 HRC. Cemented Carbide Taps ⑤ ●The MHRZ roll form taps can be used with water soluble cutting fluid. Tapping Data Comparison of tapping torque Tapping Conditions [M12×1.5] MHRZ Conventional Product Workpiece Material ＳＣＭ440/35HRC （N･㎝） （N･㎝） Roll Taps Bored Hole Size φ11.3 3000 10000 ⑥ Tapping Length 18mm through hole 2500 9500 2000 9000 Tapping Speed 20m/min 1500 8500 Machinery Type MC (perfect synchronous feed) 1000 1000 Tapping Fluid Water soluble cutting fluid 500 500 0 0 Special Thread Taps Simple Inspection Tools -500 -500 ⑦ Comparison chart for the number of holes processed -1000 -1000 -1500 -1500 MHRZ The tapping torque is high, and stable internal screw thread roll form tapping is possible even for SCM 440 (refining) with a hardness of 35 HRC. This material Can Continue hardness was thought to be difficult with roll tap in the past, but how it is possible. Pipe Taps Conventional Could not complete first hole. ⑧ Product 0 200 400 600 800 1,000 (Cutting tap) （Number of holes processed） Tangled chips Troubleshooting! Recommended speed chart Thread Mills Premium Thread Mills Workpiece Tapping Speed ⑨ Material Slow Fast 〜 35HRC MHRZ Refined Steel 〜 25HRC ◆ Eliminate problem of tangled chip by using roll taps! Dies Alloy Roll tapped thread Cutting tap thread ⑩ SCM Steel HP+RZ High Carbon S45C R+V HP-RZ OL+RZ Steel R-V Medium OL-RZ S45C Carbon N+RZ S30C N-RZ ◆ Thread surface finish improvement! Steel Center Drills Centering Tools 5m/min 10m/min 15m/min 20m/min 25m/min 30m/min 35m/min ⑪ You can also see it from the video site on the right. JIS ⑥-7