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Description
MPHT 080305 milling insert – DM code for disc cutters
| Technical data | |
|---|---|
| Side length | 8.3 mm |
| Insert thickness s | 3.2 mm |
| Hole diameter d | 3.5 mm |
| Geometry code | DM — meaning according to the product data sheet |
| Grade | H6018 — PVD-coated carbide |
| ISO group | P20-P40 · M20-M40 |
| Brand | Horn |
Indexable insert – milling parameters for steel and stainless steel
grade H6018 for ISO groups P and M — select cutting data from the data sheet for the specific cutter
| Material | Application | Cutting data selection |
|---|---|---|
| PSteel | disc milling and side milling | according to the specific cutter data sheet and setup rigidity |
| MStainless steel | disc milling and side milling | according to the specific cutter data sheet, with constant feed and coolant application |
The insert is used in indexable milling cutters, primarily disc cutters, for slotting and side milling. DM is the manufacturer's geometry code; its cutting characteristics and recommended feed must be checked in the product data sheet. Obtain vc, fz, ap, and the entering angle κ from the data sheet for the specific cutter and adjust them to its diameter, number of teeth, setup rigidity, and coolant application method.
H6018 carbide insert – design, benefits, and applications
DM code without interpretation for indexable milling cutters in series production
The MPHT 080305 milling insert is an indexable insert made of grade H6018 cemented carbide, designed for indexable milling cutters, primarily disc cutters. DM is the manufacturer's geometry code; cutting characteristics must be confirmed in the product data sheet. The PVD (physical vapor deposition) coating in grade H6018 increases wear resistance when machining steel and stainless steel. The cutting edge, with a side length of 8.3 mm and a thickness of 3.2 mm, is secured with a screw through a 3.5 mm hole. The insert is supplied by the Korean brand Horn.
Key benefits of the indexable insert
- DM code — cutting characteristics and recommendations must be checked in the product data sheet.
- H6018 PVD coating — maintains cutting performance longer thanks to high wear resistance in steel and stainless steel.
- ISO P and M group coverage — one insert machines structural steel P20-P40 and stainless steel M20-M40.
- Multiple cutting edges on the insert reduce the cost per edge in series production.
- Effective chip evacuation maintains surface quality even at increased feeds and speeds.
- Screw mounting through a 3.5 mm hole allows quick, repeatable cutting edge changes in the pocket.
Applications and cutting data selection
The MPHT 080305 insert is suitable for slotting and side milling with disc cutters and for series machining of steel and stainless steel. Repeatability matters in series production, and DM geometry characteristics and tool life should be evaluated according to the product data sheet and machining conditions. Calculate spindle speed using n = 1000·Vc/(π·D), substituting the disc cutter diameter rather than the insert size. Determine the feed rate using vf = fz · z · n, multiplying the feed per tooth by the number of cutting edges in the milling head and the spindle speed. For example, with fz = 0.12 mm/tooth, z = 6, and n = 800 rpm: vf = 0.12·6·800 = 576 mm/min.
The H6018 coating was developed for demanding steel and stainless steel machining conditions, so it maintains cutting edge sharpness even at increased speeds. For stainless steel, maintain a uniform feed and continuous coolant application to limit work hardening and remove heat from the cutting edge. Select the depth of cut, width of cut, and feed per tooth according to the cutter manufacturer's recommendations. Check the numerical values for the specific tool holder, machine, and workholding method.
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Application limitation
Grade H6018 covers ISO groups P20-P40 and M20-M40 — structural steel and stainless steel. It is not intended for hardened steels or hard machining; for hardened materials, select a grade resistant to higher cutting edge operating temperatures.
Rhombic insert designation decoder according to ISO 1832
how to read the MPHT 080305 code — designation positions 1–7
Designation MPHT 080305 according to the standard ISO 1832: 4 letters describe geometry and construction, 3 numeric codes describe dimensions. Each field has a number, an icon, and a brief description.
ISO 1832 designation decoder — how to read the code
1Mshape 2Pangle α 3Htolerance 4Ttype – 508edge length 603thickness 705radius rε
Positions 1–4 · ISO code
1MShape
86° rhombus
2 corners of 86° per side
2PClearance angle
α = 11°
positive, single-sided
3HTolerance
Class H (high precision)
ground insert — highest dimensional accuracy
4TType
Countersunk hole + chip breaker
countersink 40–60°, single-sided chip breaker
Positions 5–7 · dimensions [mm]
508Edge length
l = 8.3 mm
code 08 → edge length
603Thickness
s = 3.18 mm
between rake faces
705Corner radius
rε = 0.5 mm
code ÷ 10 → radius in mm
✓ 2 corners × 1 side = 2 cutting edges
Full designation: MPHT 080305 = rhombus 86° · positive 11° · class H · countersunk hole and chip breaker · l 8.3 mm · s 3.18 mm · rε 0.5 mm
MPHT 080305 insert compatibility and application range
materials and cutter types according to manufacturer data
Applications of the MPHT 080305 DM H6018 insert
| Status | Application |
|---|---|
| ✔ | Indexable side and face milling cutters — slotting and side milling |
| ✔ | Structural steel, ISO group P20-P40 |
| ✔ | Stainless steel, ISO group M20-M40 |
| ✔ | Series production at increased feeds and speeds |
| ✗ | Hardened steels and hard machining — outside the scope of grade H6018 |
| ✗ | Cutters with pockets other than MPHT 080305 — mounting geometry must match |
Frequently asked questions about the MPHT 080305 insert
tool selection, materials, and milling parameters
Indexable milling cutters, primarily side and face milling cutters for slotting and side milling. The cutter pocket must match the designation MPHT 080305; the cutting edge dimensions are side length 8.3 mm and thickness 3.2 mm.
Grade H6018 is PVD-coated carbide for structural steel ISO P20-P40 and stainless steel ISO M20-M40. Do not use it for hardened steels or hard machining.
DM is the manufacturer's geometry code. Its cutting characteristics, effect on forces, and recommended cutting data must be confirmed in the product data sheet.
Use the formula n = 1000·Vc/(π·D), where D is the disc cutter diameter, not the insert size. Obtain Vc from the data sheet for the specific cutter. Calculate the feed rate as vf = fz · z · n.
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| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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