Nachi GSX MILL VL Carbide End Mills

Manufacturer: Nachi-fujikoshi corp
Model: GSX MILL VL

Outline

Endmill with unequal tooth spacing and variable leads to suppress chattering
It specializes for Titanium alloy and for Carbon steels and the series is made.
GSX II coating for greater heat and wear resistance. plus anti-adhesion properties.

CodeStructural SteelsCarbon SteelsPre-Hardened Steels Alloy SteelsHardened Steels Mold SteelsHardened SteelsStainless SteelsTitanium Alloys
Nickel Alloys
Cast Irons
SS400S45C S50CSGr NAK25 to 40HRC40 to 50HRC50 to 65HRCSUS304 SUS316SUS420FCD/FC
GSXVL4×
GSXVL4T

GSX II coating
With the multi-layer of heat resistance coating and hard coating. GSX MILL VL supports cutting of hardened materials. With high wear resistance and anti-adhesion properties. stable chip removal is realized for a wide range of work materials.

Features

Unequal spacing of teeth.
Variable leads
Reduce vibration and realize high quality milling by adapting unequal index and lead design.
Comparison of vibration
Applicable to wide range of materials by two seriesApplicable to wide range of materials by two series

Applicable materialsFor SteelFor Ti and Stainless
Carbon Steels
Pre-Hardened Steels
Alloy Steels
Die Steels
Stainless Steels
Titanium Alloys
Inconel718, etc
FeatureApply Specially designed Cutting Edge to get good surface finish
Better surface finish
Apply suitable carbide material for difficult to machine material
Higher helix angle for better removability.

GSX-II Coating
Excellent heat resistance
Achieve high heat Resistance with Al-rich composition.Multi layer structure
High hardness of coating in according to multi layer structure with AlCr and AlCrX.
Crystal structure
Great wear and resistance with optimum crystal structure.
Evaluation of oxidation resistance
Status of coating films after keeping with 1.100°C in the air after 1 hour
GSX MILL VL Series

GeometryFL2.5D4D5D (over hang length)
For Steel
SquareGSXVL4-2.5D
φ3~20
GSXVL4-4D
φ3~20
RadiusGSXVL4-R-2.5D
φ6~20
GSXVL4-R-4D
φ6~20
Multi FlutesGSXVL6-2.5D
φ6~20
Long ShankGSXVLLS4-1.5D
φ3~20
For Ti・SUS
SquareGSXVL4T-2.5D
φ3~20
GSXVL4T-4D
φ3~20
RadiusGSXVL4T-R-2.5D
φ6~20
GSXVL4T-R-4D
φ6~20
Multi FlutesGSXVL6T-2.5D
φ6~20
Long ShankGSXVLLS4T-1.5D
φ3~20

Performance

GSX MILL VL Anti-Vibration Effect

Tool: Ø10
Speed: 130 m/min
Feed: 1,460 mm/min
   0.09 mm/tooth
Depth of cut: ap = 10 mm, ae = 2 mm
Material: S50C
No-chatter
Higher quality surface finish
Comparison of surface roughnessTool: Ø10
Speed: 188 m/min
Feed: 4,000 mm/min (0.167 mm/tooth)
Depth of cut: ap = 20 mm, ae = 2 mm
Material: S50C
Surface roughness comparison of milling on Titanium alloys

Tool: Ø10
Speed: 188 m/min
Feed: 4,000 mm/min (0.167 mm/tooth)
Depth of cut: ap = 20 mm, ae = 2 mm
Material: S50C
Wear comparison after 140m milling of stainless steels (SUS304)

Tool: Ø10
Speed: 100 m/min
Feed: 770 mm/min
Material: SUS304
Cutting Fluid: Wet
Milling Length: 140 m
The wear of GSXVL4T is very small and normal.
Possible to keep milling.
Application example of pocket thin-wall milling of Titanium Alloys

Milling operationCutting SpeedFeed SpeedDepth of cut
Inner surface of the pocket
Rough
Vc 90m/minVf 680mm/min
fz 0.06mm/t
On corner Vf 460mm/min
fz 0.04mm/t
ap 10mm
ae 0.7mm
Finish
Vc 120m/min
Vf 900mm/min
fz 0.06mm/t
On corner Vf 600mm/min
fz 0.04mm/t
ap 10mm
ae 0.1mm
Outer surface of the pocket
Rough
Vc 90m/minVf 690mm/min
fz 0.06mm/t
ap 10mm
ae 0.7mm
Finish
Vc 120m/min
Vf 1000mm/min
fz 0.086mm/t
ap 10mm
ae 0.1mm

Tool: GSXVL4T-2.5D
Ø10 × 25 × 70 × Ø10
Material: Ti6Al4V
Fluid: Water Soluble
High speed milling of thin wall.
Reduction Process in SUS410J

Tool: Ø12mm Radius R2mm (4 flutes)
Milling Condition
Speed: V94 m/min (N 2,500 min⁻¹)
Feed: 500 mm/min (0.05 mm/tooth)
Depth of cut: ap = 28
Material: SUS410J
Coolant: Wet

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