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MILLING
NPA 24/2021 METRIC


The Expansion of the HELI3MILL 390 LINE with a New Serrated Cutting Edge Insert


HELI_3_MILL


An assembly instruction:

Highlights
A new serrated cutting edge geometry for highly efficient rough milling.



ISCAR expands its advantageous HELI3MILL 390 LINE by introducing new inserts with serrated edges. The new inserts, with a radii of 0.8mm and 3.2mm designated as HM390 TDCR 1505…FW-P, feature a super positive and sharp serrated cutting-edge geometry with polished rake surfaces which assure highly efficient milling for aluminum alloys and other non-ferrous materials. (ISO N grade of application)
The insert’s cutting-edge geometry splits the chips into small pieces and generates low cutting forces enabling increased feed rates for higher machining productivity.



Features
  • A sharp serrated cutting edge with a special chip former;
    - significantly improves chip evacuation
    - reduces cutting load and enables high table feed
    - reduces vibration
    - reduces heat generation
  • Suitable for High Speed Machining (HSM)
  • Intended for 90° milling cutters
  • Peripherally ground insert
  • Wide sharp-edged wiper for improved surface finish
  • Both rake and relief surfaces are polished



Cutting recommendations
Table - Averaged Cutting data for HM390 TDCR 1505...FW-P inserts
* ISCAR material group in accordance with VDI 3323 standard
** Euronorm
For machining in unstable conditions, the recommended cutting data should be reduced by 20-30%

Applications
  • Rough to finish machining for ISO N materials
  • Milling square shoulders, slots, inclined surfaces and cavities by ramp down including ramping by helical interpolation
  • Milling with high tool overhang



Benefits
  • Productivity: Assures high metal removal rates
  • Economical: 3 helical cutting edges
  • Accuracy: milling 90º square shoulders
  • High performance when milling at low unstable conditions
  • Low power consumption allows applying the cutters on machine tools with limited power, small capacity machining centers and turn-milling machines
  • The shredded chips help in a significant reduction of the common built-up phenomena, especially when machining aluminum alloys
  • This single-sided triangular insert has three positive and serrated cutting edges intended for milling at 13mm depth of cut
  • Inserts with a large corner radius produce large chips. A shred feature was added to the 3.2mm radius.
  • The inserts feature a wiper corner edge for high surface finish
  • New and easy to assemble as shown in the video
  • Light weight inserts for HSM where high metal removal rate (MRR) is required



ISCAR’s HELI3MILL MILLSHRED Line
Serrated Cutting Edge for High Productivity!




HM390 TDCR 1505
Triangular Inserts with 3 Helical Cutting Edges for 90° Shoulder Accuracy



Product operation guidelines
In order to provide overlapping and achieve optimal chip shredding, it is recommended to mount the HM390 TDCR 1505… FW-P insert in an alternating edge configuration on adjacent cutter flutes.



The NPA24-2021's metric pdf file: View (PDF) or Download (ZIP)
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