HIGH-FEED
MILLING
the Go-to Solution for Accelerated Machining
HOW IT WORKS?
High-Feed Milling Mechanism
First utilized in the die and mold industry, high-feed milling is a machining method that pairs shallow depth of cut (DOC) with high feed rate up to 2.0 mm per tooth. This combination maximizes the amount of metal being removed from a part and increases the number of finished parts in a given time.
The HFM mechanism is based on the “chip thinning” effect. The thickness of a chip depends on the entry angle of a milling cutter. A cutter with a 90° entry angle has no benefit of chip thinning as the feed per tooth at 0.2 mm only creates chips 0.2 mm thick (Fig. 1). In the case of a cutter with a 45° entry angle, feed per tooth at 0.28 mm creates chips 0.2 mm thick (Fig. 2), which allows the feed to be increased, resulting in reduced cycle time. Fig. 3 shows the chip thinning effect of DoFeed, Tungaloy’s best selling HFM line, where the feed per tooth at 0.77 mm also provides chips 0.2 mm thick. Such an increase in the feed per tooth helps customers cut the cycle time by half or even more.
Low cutting force is another advantage of HFM. The entry angle on a cutter decides the direction of the cutting force. A 90° cutter (Fig. 1) will produce cutting force that acts perpendicular to the spindle, putting incredible pressure on the tool. As for a 45° cutter (Fig. 2), cutting force acts against the spindle at a 45° angle. With DoFeed, cutting force is almost parallel to the spindle due to its acute entry angle (Fig. 3), which means there is less pressure on the spindle.
TOOL SELECTION GUIDE
Choose the applications to find the right tool
| ★: Most suitable ☆: Suitable ★: Usable |
TungForceFeed | DoFeed | MillQuadFeed | DoTwistBall | DoFeedQuad | TungMeister | |
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| Tool diameter | ø8 - ø25 | ø16 - ø200 | ø25 - ø160 | ø20 - ø63 | ø50 - ø125 | ø10 - ø20 | |
| Depth of cut (APMX) | 0.5 | 1 / 1.5 | 1 / 1.5 / 2 / 2.5 | 1.3 / 2 | 2 | 0.6 - 2.2 | |
| Entry angle | 12º | 17º / 15º | 7º / 12º / 10º / 14º | 20º / 25º | 13º | R | |
| No. of corners (insert) | 2 | 4 | 4 | 4 | 8 | 1 | |
| Spindle size | BT30 / SK30 / CAT30 |
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| BT40 / SK40 / CAT40 |
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| BT50 / SK50 / CAT50 |
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| Applications | Facing |
☆ | ★ | ★ | ☆ | ☆ | ★ |
Shouldering |
☆ | ★ | ☆ | ☆ | ☆ | ||
Shouldering R |
★ | ★ | |||||
Slotting |
☆ | ★ | ★ | ★ | ★ | ||
| Slotting R |
★ | ★ | |||||
Profiling |
☆ | ☆ | ☆ | ☆ | ★ | ||
Pocketing |
☆ | ★ | ☆ | ★ | ☆ | ||
Ramping |
☆ | ★ | ☆ | ★ | ☆ | ||
Plunging |
★ | ☆ | ★ | ☆ | ★ | ||
Long overhang |
☆ | ☆ | ★ | ★ | ☆ | ☆ | |
Interrupted surface |
☆ | ☆ | ★ | ☆ | ☆ | ★ | |
Thin workpiece |
☆ | ★ | ★ | ★ | ★ | ☆ | |
HFM cutter with robust design in small diameters
- - Strong insert corner for high-feed operations
- - Incredible productivity thanks to extra close-pitch tool
- - R2 round insert is also mountable
- - Maximum feed rate: 0.8 mm/z
Versatility at its finest
- - Perfect for ramping, plunging, hole enlarging, slotting, drilling, and shoulder milling in a wide range of industries
- - Smooth chip evacuation and minimal chattering
- High productivity due to close-pitch design
- - Maximum feed rate: 1.5 mm/z
Highly versatile series with the unique insert design that allows changing entry angles
- - Two types of inserts fit on one cutter body, providing two different entry angles
- - ZER type: For general application with low cutting force
- - UER type: Suitable for difficult-to-cut materials and long overhang machining
- - Maximum feed rate: 2 mm/z
Unique twist on the insert ensures stability and maximizes productivity
- - R4,5,6 round inserts are also mountable
- - High machining efficiency with 30% greater D.O.C
- - Maximum feed rate: 1.3 mm/z
Economical tool for rough operations
- - Dovetail clamping prevents inserts from lifting up during heavy roughing operations
- - Maximum feed rate: 2 mm/z
VFX
Indexable solid carbide head
- - Highly accurate repeatability
- - Drastically reduces tool changeover time
- - Maximum feed rate: 1 mm/z