Nachi GSX MILL VL Hard

Manufacturer: Nachi-fujikoshi corp
Model: GSX MILL VL

Outline

Carbide end mill ideally suited to machining high-hardness materials
Controls chattering with unequal spacing of teeth and variable leads to achieve high-quality machining
Improves chip evacuation and stiffness with flute geometry optimized for high-hardness materials
Features heat-resistant carbide materials and GSX II coating for a longer tool life
Long tool life
Features heat-resistant carbide materials and GSX II coating for a longer tool life
Work material
Suitable for finishing hardened steels difficult to machine with general-purpose end mills
Lineup
Ø6-Ø20 (6 sizes)

Features

Unequal spacing of teeth and variable leads
Features unequal spacing of teeth and variable leads that control chattering vibration and flute geometry optimized for high-hardness materials with enhanced chip evacuation and stiffness
Applicable work materials

	Low-carbon steels Soft steels SS400, S10C	Carbon steels Alloy steels S45C, SCM440	Pre-hardened steels High alloy steels SUJ, NAK	Tempered steels SKD, SKH	Hardened steels 40 ~ 50HRC	Hardened steels 50 ~ 65HRC
	~ 150HB	~ 225HB	~ 275HB	30 ~ 40HRC	40 ~ 50HRC	50 ~ 65HRC
Stainless steels SUS304	◎	◎	◎	◎	○	○
Heat-resistant alloy Ti/Ni Alloys	○	○	○	◎	○	○
Cast iron FC/FCD	○	◎	◎	◎	○	○
Aluminum alloy AC/ADC	○	○	○	○	○	○
Copper/copper alloy Cu	○	○	○	○	○	○
Graphite Graphite	○	○	○	○	○	○

◎: optimal
○: applicable
×: not applicable
(no mark): not recommended
GSX II coating
Achieves excellent heat resistance with enhanced oxidation resistance and heat dissipation ○ Features a new layered structure for high hardness ○ Optimizes the crystal structure of the film for increased resistance to wear and adhesion
Heat resistance far superior to competitors
Oxidation resistance evaluation (calo test crater after being held for 1 hour in the atmosphere at 1.100°C)
Oxidation resistance tests conducted under NACHI standards showed GSX II coating limits oxidation to 0.3µm from the surface. whereas coating products of competitors resulted in total oxidation of the coating layer.

Performance

Enhanced durability and stable machining
Comparison of wear after side milling 70m with SKD11 (60HRC)Tool: GSXVH Ø10Speed: 70 m/min
Feed: 900 mm/min
0.07 mm/tooth
Depth of cut: ap 10 mm ae 0.1
Material: SKD11 (60 HRC)
Coolant: Air blow
Cutting length: 70 mCompetitor productsGSXVLHChipping occurs frequently
GSXVLH shows normal wear and can be used continually