Flute geometries
STRAIGHT FLUTES WITH INTERRUPTED THREADS For tapping soft and mild materials such as iron, aluminium etc. The interrupted threads avoid chips sticking to the thread flanks and consequent damage of the tap.
SPIRAL POINT The spiral point or gun nose is produced by a high helix angle combined with an increased rake angle in the front area of the tap. This design ensures spontaneous chip evacuation in the feed direction. This geometry is suitable when tapping through holes on materials which produce continuous chips.
FORMING TAPS WITHOUT OIL GROOVES These tools produce threads through plastic deformation of the workpiece material. No chips are produced during the tapping process.
FORMING TAPS WITH OIL GROOVES The oil grooves improve lubrication in the chamfer area making these taps suitable for threading deep holes.
237 vergnano |
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