SOLIDMILL - Tec Line
NPA 01/2019
New Solid Ceramic Endmills for Machining Nickel-Based Superalloys
Highlights
New solid ceramic endmills for efficient machining of superalloys, cast iron and graphite.
Following the steady increase in the processing of nickel-based high temperature superalloys (HTSA), such as various grades of Inconel, Incoloy, Haynes etc. in the aerospace industry, and the demand to decrease production costs (CPU), ISCAR is introducing new solid ceramic endmills. The new endmills can also be successfully applied to productive roughing of cast iron and graphite.
The new tools enable increasing the cutting speed by up to 50 times when compared to carbide tools, thereby drastically saving machining hours and reducing production costs.
Features
- There are 2 configurations:
E3 - with 3 flutes for shouldering applications
E7 - with 7 flutes, feed mill style for rough applications - The endmills are produced from two ceramic grades: IS6, designed specifically for machining HTSA IS35, intended for cutting mainly cast iron and graphite
- Reduction in process times on nickel-based superalloys such as Inconel, as well as cast iron and graphite
- Available in 6 to 20 mm diameters
- Relieved neck diameter behind the effective cutting edge for machining next to shoulders
- Recommended cutting speed up to 1000 m/min
- Average tool life on superalloys is 15-25 minutes
Note: The current sintering process produces tools with a slight color difference.
The color difference has no influence on tool performance whatsoever.
7 flute cutters
3 flute cutters
User Guide
- Ceramic tools behave differently than carbide tools. In most cases, the end of a tool life is determined by the acceptable level of burrs and not by wear size
- Only air coolant should be used
- Use with the same types of toolholders as carbide EMs (shrink,collet etc )
EC-E3/E7-CE (ceramic)
3 and 7 Flute Solid Ceramic Endmills with Relieved Necks for Machining Superalloys, Cast Iron and Graphite • Recommended cutting speed on high temperature nickel-based superalloys: 250-1000 m/min
• Maximum width of cut for the 3 flute cutters is 0.1xDC
• Maximum width of cut for the 7 flute cutters is DC
(1) Programming radius
(2) Number of flutes
(3) Maximum ramping angle
P | M | K | N(K) | S(M) | H(P/K) |
+ | + | + |
TEST REPORT - Rough Profiling
Part name: Mixer
Operation: Profile mill
Material: Inconel 718
Machine: DMG 80eVo HMC
Target: Productivity improvement
Competitor | ISCAR Current Grade | |
---|---|---|
Tool | STR540-0.500-D3-R090.0-Z5 | EC-E7 12-02C12R1.5N83CE |
Grade | ALCRN | IS6 |
Diameter (mm) | 12.7 | 12 |
Cutting speed (m/min) | 33 | 610 |
Rotating speed (rpm) | 827 | 16,189 |
Feed per tooth (mm/t) | 0.03 | 0.03 |
Depth of cut (mm) | 1 | 0.5 |
Table feed (mm/min) | 128 | 3,454 |
Parts per tool | 1 | 3 |
Cutting time (Hrs) | 14.3 | 1.1 |
Machince cost per part (USD) | 139.6 | 14.3 |
Carbide Endmill - Low cutting speed - Only 5 Flutes - Short tool life |
CERAMIC Endmill √ High productivity – 7 Flutes √ Economical solution (CPU) √ Extremely fast √ High repeatability |
Cycle time reduced by 92%
saving 305 hours / batch (500 pcs.)
TEST REPORT - Rough milling
Part name: Engine part
Material: Inconel 718 (AMS 5663)
Machine: DAHLIH 1020 BA
Target: Process improvement
Competitor | ISCAR Current Grade | |
---|---|---|
Holder | Collet Holder | Hydraulic Holder |
Spindle Taper | BT40 | BT40 |
Tool Diameter (mm) | 25 | 12(Ceramic master) |
Insert/Tool | JDMT 09T302 VP15TF | EC-E7 12-02C12R1.5N83CE |
Grade | VP15TF | IS6 |
Z (Flutes) | 2 | 7 |
Vc(m/min)/ RPM | 62/800 | 301/8000 |
DOC (mm) | 0.3 | 0.3 |
Feed per tooth (mm/t) | 0.25 | 0.03 |
Table feed (mm/min) | 400 | 1680 |
WOC (ae) | 12mm (0.5D) | 8mm (0.7d) |
MRR (cm³/min) | 1.44 | 4.03 |
Spindle Load | 9% | |
Cycle time | 28 Minutes | 15 Minutes |
Coolant | Wet | Dry (Air for chip evacuation) |
Carbide Insert - Low cutting speed - Short tool life - Only 2 Flutes - Insert for High Feed Cutting |
CERAMIC Endmill √ High productivity – 7 Flutes √ Economical solution (CPU) √ Extremely fast repeatable feed √ High repeatability |
Cycle time reduced by 47%
saving 33 hours / batch (150 pcs.)
The NPA01-2019's pdf file: View (PDF) or Download (ZIP)