Общий каталог Yamawa 2022 - 2023 - страница 584

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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 ⑥ Roll Tap Series Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk JIS ① MHRZ Roll Taps for Medium Hardness Carbon Steels ② Specification Coating 〜 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 ④ (m/min) (m/min) (m/min) (m/min)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. 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･㎝） 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 ⑦ -500Comparison chart for the number of holes processed-1000 -500-1000 -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 ⑧ Conventional Could not complete first hole. Can Continue hardness was thought to be difficult with roll tap in the past, but how it is possible.Product 0 200 400 600 800 1,000 (Cutting tap) （Number of holes processed） Tangled chips Troubleshooting! Recommended speed chart Workpiece Tapping Speed ⑨ Material Slow Fast 〜 35HRC RefinedSteel MHRZ 〜 25HRC ◆ Eliminate problem of tangled chip by using roll taps! Alloy⑩Steel SCMHigh HP+RZ Roll tapped thread Cutting tap thread Carbon S45C R+V HP-RZ OL+RZ Steel R-VMediumS45CCarbonN+RZOL-RZSteelS30CN-RZ ◆ Thread surface finish improvement! ⑪ 5m/min 10m/min 15m/min 20m/min 25m/min 30m/min 35m/min You can also see it from the video site on the right. JIS ⑥-7