High-Efficiency Cutter for Aluminum Alloys HF Type
■ General Features
The HF Type high-ef ciency aluminum alloy cutter employs a unique blade design to achieve machining without burrs. New HFFH Type with coolant holes is now available as a BBT30 (BIG-PLUS TM ) arbour integrated version.
Work Material
· Aluminum and aluminum alloys · Other non-ferrous metals
Not suited for cast iron or steel. ( )
■ Features
● Achieves high-ef ciency milling with v f
of over 787 IPM thanks to its multi-
H
blade design (3 edges per inch) High-feed, High-ef ciency Milling by Multi-edge Design
f z = 0.0031 mm/t Conventional Tool
113 IPM
3.4 Times the Machining Efficiency
f z = 0.0063 mm/t HFF12080R
386 IPM
100
200
300
400
0
v f
(IPM)
■ Maximum Allowable Spindle Speed and Feed Rate
Maximum Number of Teeth
v c
f z
v f
n max
Cutter Dia.
(mm)
(RPM)
(SFM)
(IPT)
(IPM)
Workpiece: Aluminum Case (Frame Milling) Tool: HFF12080R-25.4 ( ø80 10 - ute), Conventional Tool ( ø80 6 - ute)
ø80 ø100 ø125
11,000 9,500 7,500
9,065 9,787 9,659
up to 0.008” up to 0.008” up to 0.008”
10 12 15
up to 866” up to 897” up to 886”
● Reduces burrs by using a double-chamfered blade type
Drastically reduces burrs by preventing the plastic deformation that causes burrs.
Conventional Tool Blade Type
Double-Chamfered Blade Type
Main Chamfer
25°
25°
Sub Chamfer
Burr formation
No Burrs
0.016"
Work Material: A6061 Sheet Metal Cutting Conditions: v
c = 10,308 SFM ,
a p = 0.02 ", Dry
f z = 0.004 IPT ,
● Wedge clamp with anti-scattering mechanism ensures safety and operability
When Clamping
When Unclampin
When Unclamping
Anti-scattering Stopper
Anti-scattering
Anti-scattering Stopper
Enables Easy Runout Correction HFJ
6.0 N m
Ensure that the maximum allowable spindle speed ( n max ) speci ed for each cutter diameter is not exceeded. (See the table at upper right)
● Reduces running costs by drastically increasing blade regrinding allowance (to 0.071") Assuming 0.008" of regrinding each time, an edge can be used up to 10 times.
(Given conditions of normal wear with a p = 0.06" or less)
The regrinding amount has been drastically increased compared to conventional screw-lock types
Regrinding Portion
● Internal coolant improves chip evacuation performance (HFFH Type, HFFH-BBT30 Type) The internal coolant effectively prevents chips from becoming clogged or biting into the work material and achieves longer tool life. (Use an internal coolant compatible arbor)
*1 BIG-PLUS TM is a registered trademark of BIG DAISHOWA Co., Ltd. *2 Can also be used with BT30 spindle machines.
H186
N m Recommended Tightening Torque (N·m)
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