CutterFor machining heat-resistant alloys ｜ Ceramic

NTK's newly designed small-diameter milling cutter
for machining heat-resistant alloys

New innovation in small-diameter milling cutters for ceramic inserts

3 negative inserts on φ16 cutter body.
The negative insert, which can be used on both sides and has high cutting edge strength, and the high efficiency of the 3-flute insert contribute to reduced tool cost, stable machining, and improved productivity.

Features

Higher number of inserts for even higher efficiency
Negative inserts with higher cutting edge strength for more stable machining
Economical negative insert that can be used on both sides

Tooling application

Milling

For Aerospace, Power Generation

Higher number of inserts for even higher efficiency

3 negative inserts on φ16 cutter body

Increased clamping force prevents insert rotation during machining

New clamp system (φ16)

Parts installation procedure video

Economical negative insert that can be used on both sides

Increased clamping force prevents insert rotation during machining

🟡 Available corners

Negative inserts with higher cutting edge strength for more stable machining

Cutter body dia.: φ16 (Bottom machining Dia.: φ9.65)
Work material	Inconel718
Cutting speed (m/min)	606（20000rpm）
Feed（ mm/t）	0.1
DOC (mm)	1.0
Removal volume per tooth (cc)	16.66

※Since the new NTK cutter has three inserts, the total volume removed is 1.5 times that of competitor's.

Life extension breaker

A step breaker with the cutting edge lowered from the clamping surface suppresses flaking.

Recommended Cutting conditions

Scroll the table →

Grade	Material	Operation type	Cutting speed (m/min)	Feed (mm/t)	DOC (mm)	Coolant
SX3 / SX9	Heat resistant alloys	Milling	400 - 700 ‒ 1000	0.08 - 0.10 - 0.12	- 1.0	DRY

Allowable rotation speed

Cutter Item number	Cutting edge dia	Tooth	Allowable rotation speed (min^-1)
JRFMH016E160R03	16	3	20,000
JRFIH0625E0625R03	15.875		20,000
JRFMH020E200R03	20		17,500
JRFIH075E075R03	19.05		17,500
JRFMH025E250R04	25	4	15,000
JRFIH100E100R04	25.4	4	15,000
JRFMH032E320R05	32	5	15,000
JRFIH125E125R05	31.75	5	15,000
JRFMH025E250R03	25	3	12,500
JRFIH100E100R03	25.4	3	12,500
JRFMH032E320R04	32	4	12,500
JRFIH125E125R04	31.75	4	12,500
JRFMH032E320R03	32	3	12,500
JRFIH125E125R03	31.75

Case study

Waspaloy（Combustion case)
	JRF Cutter	Competitor's
Grade	SX9	SX9 (RP)
Tooth	5 (Φ32)	3 (Φ32)
Vc (m/min)	564	564
Fz (mm/t)	0.05	0.05
F (mm/min)	2000	1200
DOC ap (mm)	1.0	1.0
Tool life	2 Pass	1 Pass
Corner	8	5


Cost Productivity
NTK	68% ←
Competitor's	100%

32% cost reduction!
Insert unit price ÷ Number of corners used (life) x Number of teeth

Lineup

Scroll the table →

Cutter Item number	Cutting edge dia	Tooth	Insert Item number	IC	Thickness	Cap screw	Wedge screw	Wrench (sold separately)
JRFMH016E160R03	16	3	-SX3RNGF060300E-HNF -SX9RNGF060300E-HNF	6.35	3.18	HCS3P050	HWS3P050	DL-025-08-JRF
JRFIH0625E0625R03	15.875		-SX3RNGF060300E-HNF -SX9RNGF060300E-HNF		3.18
JRFMH020E200R03	20		-SX3RNGF060400E-HNF -SX9RNGF060400E-HNF		4.76
JRFIH075E075R03	19.05
JRFMH025E250R04	25	4						DL-025-20-JRF
JRFIH100E100R04	25.4	4
JRFMH032E320R05	32	5	-SX3RNGF090400E-HNF -SX9RNGF090400E-HNF	9.525
JRFIH125E125R05	31.75	5
JRFMH025E250R03	25	3				HCS5P080	HWS5P080	DL-040-20-JRF
JRFIH100E100R03	25.4	3
JRFMH032E320R04	32	4
JRFIH125E125R04	31.75	4
JRFMH032E320R03	32	3	-SX3RNGF120400E-HNF	12.7
JRFIH125E125R03	31.75

NTK CUTTING TOOLS

CutterFor machining heat-resistant alloys ｜ Ceramic

NTK's newly designed small-diameter milling cutter
for machining heat-resistant alloys