Figure 1. - The profiles of the milling cutters for grooves.

Figure 2. - The initial cylinder.

Figure 3. - Cylindrical propeller HELIX1. it is realized the tooth profile of the snail (generating curve) – SKETCH 2 – which is wrapped up the snail propeller (steering curve) with SWEEP (fig.4);

Figure 4. - Section which is wrapped up on the direction propeller.

it is generated the propeller suitable to the tooth profile of the milling cutter (normal to the turn wrapping up) - HELIX 2 (fig.5); Figure 5. - Propeller with tooth profile.

it is realized the form BOSS-SWEEP of the chips canal in accordance with calculated geometrical elements (SKETCH 3) (fig.6); Figure 6. - The SWEEP shape of worm.

it is cut the chips canal with this form along the propeller (CUT SWEEP) (fig. 7); Figure 7. - Definition of the shape CUT-SWEEP.

it is realized the backed off on the tooth tip with CUT and PATTERN; Figure 8. - Shape of the chip canal.

it is multiplied the chips canals form suitable to the teeth number of the milling cutter with PATTERN_CIRCULAR (fig.9); Figure 9. - Hobbing cutter with the multiplied chips canals.

It is completed the geometrical form with the bore hole with wedge and with centered shoulders. Figure Image of the hobbing cutter.