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WNMG 080404 K10 plate - Aluminum
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  • WNMG 080404 K10 plate - Aluminum
  • WNMG 080404 K10 plate - Aluminum - nr. 1
Horn

Carbide insert WNMG 080404 AL K10 Horn

Horn Horn
14995
Cutting edge length: 082 sizes of this insert
0608
€7.77 tax inc.

Net price: €6.32

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Call and order: (44) 755-04-05

Description

WNMG 080404 turning insert – indexable 80° trigon

Technical data
Side length l 8.7 mm
Insert thickness s 4.76 mm
Hole diameter d1 5.16 mm
Corner radius rε 0.4 mm
ANSI code WNMG 431
WNMG 080404 indexable turning insert in K10 carbide, double-sided 80° trigon with a hole and chip breaker for aluminum

Cutting data for the WNMG 080404 insert for aluminum and nonferrous metals

semi-finishing — ISO N materials

MaterialSemi-finishing
Vc [m/min]Feed f [mm/rev]
NAluminum 60-130 0.15

K10 carbide indexable insert – applications and design

double-sided 80° trigon with a hole and chip breaker

The WNMG 080404 turning insert is a double-sided, trigon-shaped indexable insert (letter W) designed for turning aluminum and nonferrous metals. The 80° cutting corner is robust and rigid, enabling it to withstand loads during longitudinal and profile turning. The negative geometry with a 0° clearance angle (letter N) allows both sides of the insert to be used — a total of six cutting edges. The mounting hole with a chip breaker on both sides (type G according to ISO 1832) controls the flow of long, ductile aluminum chips.

Key benefits of the K10 carbide insert

  • Six cutting edges — 3 corners with an angle of 80° on each of the two sides reduce the cost per cutting edge compared with single-sided inserts.
  • Grade K10 for ISO group N — fine-grained carbide with a sharp, often polished edge for aluminum, copper alloys, and other nonferrous metals.
  • Corner radius rε 0.4 mm — a small radius for finishing at low feed rates, providing a smooth surface and an accurate profile.
  • The 80° corner angle provides a strong cutting edge and allows longitudinal turning and facing with a single corner without changing the turning tool.
  • Dimensions according to ISO 1832: edge length 8.7 mm, IC 12.7 mm (1/2″), thickness 4.76 mm — suitable for holders with a 08 trigon insert pocket.
  • Tolerance class M ensures repeatable edge positioning after indexing the insert in the holder pocket.

Applications and cutting data selection for the trigon insert

The WNMG 080404 insert (also written without a space as wnmg080404) is suitable for turning shafts, bushings, discs, and flanges made of aluminum and light alloys. It is valued where a sharp edge, clean chip evacuation, and a smooth workpiece surface are essential. Calculate spindle speed using n = 1000·Vc/(π·D): for a shaft with a diameter of 40 mm at Vc = 130 m/min, the result is approximately 1035 rpm. Due to the small nose radius of 0.4 mm and thin chips, maintain a feed rate of approximately 0.15 mm/rev — this is a typical finishing range, rather than a roughing range.

When turning aluminum, the main concern is built-up edge: particles of the workpiece metal adhering to the cutting edge and impairing surface finish. The sharp, fine-grained, and often polished edge of grade K10, together with its smooth rake face, significantly reduces this effect and maintains a bright workpiece finish. To further reduce built-up edge, machine at higher cutting speeds with abundant emulsion coolant or MQL. When selecting a version from the WNMG 0804 family, remember that the 0.4 mm radius is intended for finishing, while larger radii are intended for heavier roughing passes. Grade K10 indexable inserts are supplied by the Korean brand Horn.

▲
Application limitation

Grade K10 with a sharp edge is designed for nonferrous metals (group ISO N) — do not use it for turning steel or cast iron. For these materials, choose an insert WNMG in a general-purpose grade for groups ISO P and M.

Trigon insert designation decoder according to ISO 1832

how to read the WNMG 080404 code — positions 1–7 of the designation

Designation WNMG 080404 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

1Wshape 2Nangle α 3Mtolerance 4Gtype – 508size 604thickness 704radius rε

Positions 1–4 · ISO code

1WShape

80° trigon

3 corners of 80° per side

2NClearance angle

α = 0°

negative, double-sided

3MTolerance

Class M (intermediate)

IC ±0.08 · thickness ±0.13 mm

4GType

Hole + chip breaker

chip breaker on both sides

Positions 5–7 · dimensions [mm]

508Size

l = 8.7 mm

IC = 12.7 mm · 1/2″

604Thickness

s = 4.76 mm

between rake faces

704Corner radius

rε = 0.4 mm

code ÷ 10 → radius in mm

✓ 3 corners × 2 sides = 6 cutting edges

Full designation: WNMG 080404 = 80° trigon · negative · class M · hole and chip breaker · IC 12.7 mm (l 8.7 mm) · s 4.76 mm · rε 0.4 mm

Compatible turning tools for WNMG 080408 aluminum

Compatible turning tools

holders with a 08 trigon pocket — external and internal turning

TWLNR/L 2020 K0820×20 × 125 mmR right-hand
←L left-hand
→
TWLNR/L 2525 M0825×25 × 150 mmR right-hand
←L left-hand
→
TWLNR/L 3232 P0832×32 × 170 mmR right-hand
←L left-hand
→
TWLNR/L 4040 S0840×40 × 250 mmR right-hand
←L left-hand
→
PWLNR/L 2020 K0820×20 × 125 mmR right-hand
←L left-hand
→
PWLNR/L 2525 M0825×25 × 150 mmR right-hand
←L left-hand
→
PWLNR/L 3232 P0832×32 × 170 mmR right-hand
←L left-hand
→
PWLNR/L 4040 S0840×40 × 250 mmR right-hand
←L left-hand
→
MWLNR/L 2020 K0820×20 × 125 mmR right-hand
←L left-hand
→
MWLNR/L 2525 M0825×25 × 150 mmR right-hand
←L left-hand
→
MWLNR/L 3232 P0832×32 × 170 mmR right-hand
←L left-hand
→
MWLNR/L 4040 S0840×40 × 170 mmR right-hand
←L left-hand
→
MWDNN 2020 K0820×20 × 125 mmR right-hand
←L left-hand
→
MWDNN 2525 M0825×25 × 150 mmR right-hand
←L left-hand
→
MWDNN 3232 P0832×32 × 170 mmR right-hand
←L left-hand
→
MWDNN 4040 S0840×40 × 170 mmR right-hand
←L left-hand
→
S25S TWLNR/L-08Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T TWLNR/L-08Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U TWLNR/L-08Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S50V TWLNR/L-08Ø50 | Ømin 63 mm | L=400R right-hand
←L left-hand
→
S25S PWLNR/L-08Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T PWLNR/L-08Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U PWLNR/L-08Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S50V PWLNR/L-08Ø50 | Ømin 63 mm | L=400R right-hand
←L left-hand
→
S25S MWLNR/L-08Ø25 | Ømin 32 mm | L=250R right-hand
←L left-hand
→
S32T MWLNR/L-08Ø32 | Ømin 40 mm | L=300R right-hand
←L left-hand
→
S40U MWLNR/L-08Ø40 | Ømin 50 mm | L=350R right-hand
←L left-hand
→
S50V MWLNR/L-08Ø50 | Ømin 63 mm | L=400R right-hand
←L left-hand
→

Frequently asked questions about the WNMG 080404 insert

use, turning tool selection, and turning parameters

Six — the trigon has 3 usable corners of 80° on each side, and the negative geometry (0° clearance angle) allows both sides of the insert to be used. Once an edge becomes dull, simply index the insert in its pocket without changing the holder.

Holders with a size 08 trigon pocket (IC 12.7 mm): for external turning TWLNR/L, PWLNR/L, MWLNR/L and MWDNN with cross sections of 20×20–40×40 mm; for internal turning, boring bars S25S–S50V with the suffix TWLNR/L, PWLNR/L, or MWLNR/L.

Only in corner radius: 0.4 mm is a finishing version for low feed rates and a smooth surface, while 0.8 mm is more versatile and stronger at higher feed rates. The other dimensions of the WNMG 0804 family (IC 12.7 mm, thickness 4.76 mm) are identical.

No — grade K10 is a fine-grained carbide for nonferrous metals in group ISO N (aluminum, copper alloys). The sharp edge would wear quickly in steel; for steel and stainless steel, choose a WNMG insert in a grade for groups ISO P and M.

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Carbide insert WNMG 080404 AL K10 Horn

Carbide insert WNMG 080404 AL K10 Horn

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