Каталог Sumitomo фрезы со сменными пластинами - страница 128

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HF

■ 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-PLUSTM) integrated arbor types

are available.

Work Material （ ）

・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 its multi-edge design (3 edges per inch). f

High Feed, High-efficiency Milling with Multi-edge Design

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
Cutter Diametern 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-chamfered cutting edge.
DrasticallyreducesburrsbyConv. EdgeDouble-Chamfered Edge
preventing the plastic deformationMain Chamfer
that causes burrs.25°25°
Sub Chamfer

H 0.416 Burrs are formed. No Burrs

mm 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 operability.
Face When ClampingWWhen Unclamping
Milling
Shoulder
Milling

High Feed Anti-scattering Anti-scattering

Stopper Stopper Radius 6.0 Enables Easy Run-Out Correction Multi- N m

Purpose HFJ R/ Do not exceed the maximum allowable spindle speed (n max) specified for each cutter diameter. (*See the table on the upper right.) Profiling Groove/ Reduces running costs by significantly increasing the insert regrinding amount (to 1.8mm). T-Slot

Assuming the amount of regrinding

Chamfering

to be 0.2mm, an edge can be used

Aluminum/ up to 10 times. Light Alloys High-Speed （* Given the condition of normal wear with ap of 1.4mm or less） Cast Iron

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

*1 BIG-PLUSTM is a trademark of BIG DAISHOWA SEIKI CO., LTD. *2 Can also be used with BT30 spindle machines.