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MILLING
NPA 40/2018


heli 4 mill

New Versatile Milling Cutters for Shouldering and Fast Feed Applications


Highlights
ISCAR is introducing the HELI4MILL - new indexable and versatile small diameter milling cutters that can carry singlesided square and fast feed inserts.


The new HELI4MILL cutters and inserts are designed to provide an economical option for a wide range of roughing and finishing operations.

The cutters can carry inserts of different shapes in the same pocket. The simple and user-friendly system allows the tool to be used for milling square shoulders and slots, or for productive fast feed rough machining.

HELI4MILL cutters can successfully replace solid carbide endmills. They facilitate application flexibility and reduce stock and procurement costs.

HELI4MILL tools have been designed for the manufacturing of small-size and miniature parts, small dies and molds, and medical components. Their compact size makes the new cutters ideally suited for turn-milling.

HELI4MILL cutters are available in the following configurations:

E90SO…-04
Endmills in the 10 -20 mm diameter range

E90SO…MM-04
Endmills with MULTI-MASTER threaded adaptation in the 10-16 mm diameter range

Cutter Features
  • Each cutter can carry single-sided square and fast feed milling inserts
  • Mounting differently shaped inserts does not change the cutter diameter
  • Ramping down ability
  • Coolant holes are directed to each and every cutting edge
  • Cutter body has a special protective polished coating for uninterrupted chip flow and protection from corrosion and wear




SOMT 040204PNTR Insert
A general-use insert with 4 helical cutting edges for milling square shoulders.

Features
  • Positive axial rake to reduce cutting forces
  • High surface finish
  • 0.4 mm corner radius
  • 3.5 mm maximum depth of cut


SOCT 040204PNR Insert Square insert intended mainly for milling various high-temperature alloys.
Its cutting geometry ensures high machining accuracy and high surface finish.
The insert enables smooth machining, exerting low cutting forces.

Features
  • Ground cutting edge with a special edge preparation to produce high surface finish
  • A special chipformer designed for machining high-temperature alloys
  • Provides a high 90° shoulder accuracy
  • 0.4 mm corner radius
  • 3.5 mm maximum depth of cut


Machining Recommendations for SOMT 040204 PNTR Inserts
* ISCAR material group in accordance with VDI 3323 standard
** Quenched and tempered
For machining in unstable conditions, the recommended cutting data should be reduced by 20-30%

SOMT 040206 PNR-FF Insert
Square insert with 4 cutting edges for fast feed milling.

Features
  • Ramping down capabilities
  • When the insert is mounted in a cutter, it provides a side clearance that enables deep pocket milling, as it eliminates rubbing and damaging the side wall
  • Small insert size enables high tooth density
  • Durable insert design to withstand high chip load, 0.5 mm maximum feed per tooth
  • 0.5 mm maximum depth of cut


Note for technologists and CNC programmers: The tool corner radius used for CNC programming should be considered as 1.1 mm.

When mounting this insert in a HELI4MILL tool for fast feed milling, the tool pockets should be modified by a corner rounding of 2 mm radius.

Machining Recommendations for SOMT 040208 PNR-FF inserts
* ISCAR material group in accordance with VDI 3323 standard
** Quenched and tempered
For machining in unstable conditions, the recommended cutting data should be reduced by 20-30%

HELI4MILL inserts are produced from ISCAR’s latest SUMOTEC carbide grades to ensure high productivity.

For shallow milling applications, a high table feed can be applied by the HELI4MILL tools, increasing productivity and reducing production costs.

Applications
  • Machining main engineering materials like alloy steel, cast iron, stainless steel and difficult-to-cut HTSA
  • Wide range of milling operations
  • Designed for general engineering parts





High Feed
90°
Shouldering
Marketing
HELI4MILL family offers distinct technical advantages with a very attractive price per cutting edge.
We expect the new HELI4MILL family to provide the customer with a productive and profitable solution in a broad spectrum of milling applications as an alternative to solid carbide endmills.

HELI4MILL
Versatility and Cost-Effectiveness
E90SO-04
Endmills Carrying Inserts for Shouldering and Fast Feed Applications

• A - with SOMT/CT 0402 insert
• B - with SOMT 0402-FF insert
• Tightening torque 0.5 Nxm
(1) C-Cylindrical
(2) Number of inserts
(3) Maximum ramping angle
• Valid only with SOMT 040208 PNR-FF insert



E90SO-MM-04
Endmills with a MULTI-MASTER Connection Carrying Inserts for Shouldering and Fast Feed Applications

• A - with SOMT/CT 0402 insert
• B - with SOMT 0402-FF insert
(1) Number of inserts
(2) Key flat size
(3) Maximum ramping angle
• Valid only with SOMT 040208 PNR-FF insert

SOMT/CT 0402
Square Milling Inserts for General Use

SOMT 0402-FF
Square Milling Inserts for Fast Feed Milling

(1) Radius for programming

Application Range SOMT 040208 PNR-FF
ap (mm)
fz (mm/t)


Insert Position


The NPA40-2018's pdf file: View (PDF) or Download (ZIP)
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