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AL+SP/AL-SP

Spiral Fluted Taps for Aluminum

Specification

■ In aluminum die casting and aluminum casting tapping, E AL+SP/AL-SP solves such problems as chip jamming, chip clogging, and torn threads. Nitride ～M2.6

Recommended Tapping Speeds depending on Materials

Aluminum alloy Aluminum alloy Copper alloy Brass alloy and AL+SP ～M6

Si Si bronze alloy

IS IS IS IS AL－SP M8～

10〜2510〜2510〜2510〜25
(m/min)(m/min)(m/min)(m/min)

For icon explanation, refer to P.50 Product features

  • AL+SP ensures the consistent tapping even in high speed cutting area, in forged workpieces of light alloys such as aluminum die castings and aluminum castings.
  • Having optimum cutting edge design, AL+SP does not produce burrs in minor diameter which usually tend to come out during tapping light alloys, and results in cutting of stable and clean internal threads.

Tapping data Tapping condition（M6×1）

Work materialDIN G-AISi7Mg
Tappingspeed20m/minAL+SP
Hole sizeφ5.0Still usable
Tappinglength9mm,blind holePi
MachineMachiningcenter,vertical typerevous productStopped due to burrs
lWater soluble oil
Tapping fluid(chlorine free,20 fold dilution rate)5,00010,00015,000 20,000 25,000
（Number oftapped holes）

AL+SP Previous product

Internal thread by AL+SPInternal thread by AL+SP Cross section of internal threads tappedCross section of internal threads tapped Internal thread by Previous productInternal thread by Previous productCross section of internal threads tappedCross section of internal threads tapped

ood finish in minor diameter without burrsood finish in minor diameter without burrs Burrs in minor diameterBurrs in minor diameter

●Compared with previous product, AL+SP assures internal threads of better quality and longer tool life.