
JIS ACHSP
Spiral Fluted Tap for Aluminum Casting
Specification
CoatingCoating <<2D2D
Recommended Tapping Speeds depending on Materials
Aluminum alloy castings
30アルミ合金鋳物50
(m/min)
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.
- The shank diameter is the same as the major diameter of the tap which improves rigidity and makes the ACHSP more 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
Tapping Conditions [M8×1.25]
| Workpiece Material | ADC12 |
| Tapping Spoeed | 50m/min |
| Number of Holes Tapped | 50 hole |
| Bore Diameter | φ5.8 |
| Bored Hole Taper Angle | 2° |
| Shape Depth | 22mm |
| Condition | Blind hole |
| Tapping Length | 17mm |
| Misalignment Amount | X direction + 0.5 mm |
| Feed Type | Synchronous feed |
| Machine Type | M / C machine (horizontal type) l |
| Tapping Fluid | Water soluble cutting fluid |
Reduction of machining time
Correcting misaligned cast pilot holes is unnecessary shortening the tapping process time!
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
■Recommendation
Internal coolant supply is recommended to prevent the tapped holes from being blocked by the ejected chips.