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High-Performance Solid Carbide HPC Mill for Deep Contours

This four-flute solid carbide HPC end mill in the long version is precisely designed for machining demanding cavities and deep-lying form elements. By combining a Weldon shank with a specific neck relief, clearance contours are easily navigated. The cutting tool features an unequally pitched helix, which promotes smooth operation. Thanks to the RT405 PVD-TiAlN coating, users benefit from reliable wear protection, making this end mill a solid choice for modern roughing and finishing applications.

Suitable materials

Technical data

  • Mill Type: Solid Carbide HPC Mill
  • Design: Long version with neck relief
  • Number of flutes: 4 (center cutting)
  • Helix angle: 35°/38° (unequal pitch)
  • Coating: RT405 PVD-TiAlN
  • Shank: Weldon shank

Dimensions of Solid Carbide HPC Mill with neck relief

Art. Nr. D d(h6) d1 H M L Z
HPCL-Z4-D3.0-W RT405
2551615 3 6 2,7 6,5 15 58 4
HPCL-Z4-D4.0-W RT405
2551616 4 6 3,7 8,5 20 62 4
HPCL-Z4-D5.0-W RT405
2551617 5 6 4,7 10,5
25 70 4
HPCL-Z4-D6.0-W RT405
2551618 6 6 5,7 13
30 70 4
HPCL-Z4-D8.0-W RT405
2551619 8 8 7,7 17
40 80 4
HPCL-Z4-D10.0-W RT405
2551620 10 10 9,5
21
50 94 4
HPCL-Z4-D12.0-W RT405
2551621 12 12 11,5 25 60 109 4
HPCL-Z4-D16.0-W RT405
2551622 16 16 15,5 33 80 132 4
HPCL-Z4-D20.0-W RT405
2551623 20 20 19,5 55 98 150 4

Cutting data

Ae Cutting speed Feed fz [mm/z]
Vc[m/min] Ø 3-5 Ø 6-8 Ø 10 Ø 12-16 Ø 20
Structural Steel <450 1/1 170-200 0,05-0,06 0,06-0,07 0,07 0,07-0,08 0,08
1/2 190-230 0,07-0,08 0,08-0,09 0,09 0,09-0,1 0,1
1/10 200-280 0,12-0,14 0,14-0,18 0,22 0,23-0,27 0,32-0,36

Tempered Steel


450-700

1/1 130-190 0,05-0,06 0,06-0,07 0,07 0,07-0,08 0,08
1/2 160-210 0,07-0,08 0,08-0,09 0,09 0,09-0,1 0,1
1/10 180-220 0,12-0,14 0,14-0,18 0,22 0,23-0,27 0,32-0,36
Tooling Steel >700 1/1 120-180 0,05-0,06 0,06-0,07 0,07 0,07-0,08 0,08
1/2 150-200 0,07-0,08 0,08-0,09 0,09 0,09-0,1 0,1
1/10 170-220 0,12-0,14 0,14-0,18 0,22 0,23-0,27 0,32-0,36
Stainless Steel <1100 1/1 60-90 0,05 0,05 0,05 0,05-0,06 0,06
1/2 80-100 0,06 0,06-0,07 0,07 0,07-0,08 0,08
1/10 100-130 0,1 0,1-0,12 0,12 0,14-0,16 0,18
Cast Iron 1/1 150-200 0,06 0,06-0,07 0,07 0,07-0,08 0,08
1/2 160-240 0,08 0,09 0,09 0,09-0,10 0,10
1/10 220-280 0,14-0,16 0,15-0,18 0,22 0,25-0,27 0,36
Hardened Steel up to 55 HRC 1/1 100 0,045-0,053 0,045-0,053 0,053 0,053-0,06 0,06
1/2 120 0,06-0,07 0,06-0,07 0,07 0,07-0,08 0,08
1/10 140 0,1-0,12 0,1-0,12 0,12-0,14 0,16 0,18

Applications

This end mill is specifically designed for machining structural steel, tempered steel, tool steel, stainless steel, and cast iron. The extended design and integrated neck relief show their strengths especially when milling deep slots, pockets, and complex component contours. In addition to classic operations like shoulder and face milling, the tool is also suited for ramping and plunge milling due to its center-cutting capabilities.

Eckfräsen

Special features

A key feature of this tool is its vibration-reducing design. The unequal helix angle of 35°/38° counteracts harmonic oscillations and creates favorable conditions for excellent surface finishes on the workpiece. The combination of a tough solid carbide substrate and a robust TiAlN coating supports efficient machining processes with consistent results.

2551615

Data sheet

Materials
Cast Iron
Stainless Steel
Steel
Solid carbide Mills
HPC Mills

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