HF

Type Expansion

■ General Features

The HF type high efficiency cutter for aluminum alloy achieves machining without burrs using a unique insert shape. New HFFH types with oil holes and BBT30 (BIG-PLUS™BT30) integrated arbor types are available.

Work Material ( )

・Aluminum and aluminum alloys Not suitable for ・Other non-ferrous metal cast iron or steel. ■ Characteristics Achieves high-efficiency milling with V of over 20,000mm/min thanks to more teeth (3 edges per inch). f

High Feed, High-efficiency Milling with more teeth Conventional Tool 2,880mm/min2,880mm/min f =0.08mm/t z 3.4 Times Machining Efficiency3.4 Times Machining Efficiency3.4 Times Machining Efficiency HFF12080R 9,800mm/min f =0.16mm/t z

02,5005,0007,50010,000
v
f (mm/min)
●Maximum Allowable Spindle Speed and Feed Rate
Cuttern maxvfMax. No. of Teethv
czf
Work:Aluminum Case (Frame Milling)(mm)(min -1)(m/min)(mm/t)(Edges )(mm/min)
Tool: HFF12080R-25.4 (ø80 10 Flutes),ø8011,0002,763to 0.210to 22,000
Conventional (ø80 6 Flutes) ø1009,5002,983to 0.212to 22,800
ø1257,5002,944to 0.215to 22,500
  • Reduces burrs by using a double-chamfer cutting edge.
Drastically reduces burrs byConv. EdgeDouble-Chamfe Edge
preventing the plastic deformationMain Chamfer
that causes burrs.25°25°
Sub Chamfer

0.416mm Burrs are formed. No Burrs

Work Material:A6061 Blanks Cutting Conditions:v =3,142m/min, f =0.10mm/t, c z a =0.5mm, Dry

p

  • The wedge clamp with anti-scattering mechanism ensures safety and simple operation.

Clamping U Unclamping

Anti-scattering Anti-scattering Stopper Stopper 6.0 Enables Easy Run-Out Correction N m HFJ Do not exceed the maximum allowable spindle speed (n max) specified for each cutter diameter. (*See the table on the upper right.)

  • Reduces running costs by significantly increased number of regrinding (to 1.8mm). Assuming the amount of regrinding to be 0.2mm, an edge can be used up to 10 times.

M (* Given the condition of normal wear with ap of 1.4mm or less)

Regrinding Portion The regrinding amount has been significantly increased compared to conventional screw-lock types.

  • Improved chip evacuation with internal coolant (HFFH type and HFFH-BBT30 type)

SUMIDIA The effect of internal coolant controls chip blockages and packing in the work SUMIDIA Binderless material and improves tool life. (Use an arbor that supports internal coolant.) SUMICRYSTAL

BIG-PLUS™ is a trademark of BIG DAISHOWA SEIKI CO., LTD. Can also be used with BT30 spindle machines.