Общий каталог Yamawa 2022 - 2023 - страница 572

⑤ Cemented Carbide Tap Series 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 ACHSP Spiral Fluted Taps (for blind hole) ① JIS Spiral Fluted Tap for Aluminum Casting Spiral Fluted Taps (for through hole) ② Specification <2D Coating Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials Aluminum alloy castings アルミ合金鋳物 30 50 〜 Hand Taps ( m / min ) ④ Features  Direct tapping of cored holes without drilling first, results in reducing the manufacturing time. ● ● Made from an ultrafine grain carbide alloy combining the hardness and toughness. Cemented Carbide Taps ● The shank diameter is the same as the major diameter of the tap which improves rigidity and makes the ACHSP more ⑤ resistant to deflection and the cutting side pressure caused from misalignment. (Maximum displacement of core hole: M6 · M8 within 0.3 mm, M 10 within 0.5 mm) ● A thin film coating offers improvements in wear resistance and a reduction of cutting edge chipping. Tapping Data Roll Taps Tapping Conditions [M8×1.25] ⑥ Workpiece Material ADC12 Condition of Internal Threads Chip Shape Tapping Spoeed 50m/min Number of Holes Tapped 50 hole Bore Diameter φ5.8 Special Thread Taps Simple Inspection Tools Bored Taper Angle 2° ⑦ Hole Shape Depth 22mm Condition Blind hole Tapping Length 17mm Misalignment Amount X direction + 0.5 mm Pipe Taps Feed Type Synchronous feed ⑧ Machine Type M / C machine (horizontal type) Tapping Fluid Water soluble cutting fluid Reduction of machining time Thread Mills Premium Thread Mills Correcting misaligned cast pilot holes is unnecessary shortening the tapping process time! ⑨ Conventional machining process ACHSP Eliminates drilling ①Cast Hole Processing ②Chamfering ③ Bored Hole Drilling ④ Tapping ①Cast Hole Processing ②Chamfering ③Bored Hole Drilling ④ACHSP Tapping Dies ⑩ Center Drills Centering Tools ⑪ ■Recommendation Internal coolant supply is recommended to prevent the tapped holes from being blocked by the ejected chips. JIS ⑤-39