ISO-TURN
NPA 31/2017



ISO-TURN

IS25 and IS35
New SiAlON Ceramic Grades for Machining High-Temperature Alloys

Highlights

ISCAR is introducing the IS25 and IS35 new SiAlON ceramic grades for machining high- temperature alloys.



Both the IS25 and IS35 ceramic grades were developed for very high cutting speeds and interrupted cut applications on nickel based heat resistant alloys such as Inconel, Waspaloy, Rene, etc.

The new grades are characterized by their high hardness and wear resistance that increase productivity on super alloy materials such as Inconel 718 and Waspaloy. They provide an advantageous performance when compared with conventional carbide grades.


Main Advantages
  • Excellent wear resistance and fracture toughness
  • Excellent thermal shock resistance
  • Excellent for roughing and semi-finishing operations
  • Can be used with similar machining conditions such as whisker-reinforced grades
  • Price advantage over the whisker reinforced grades


 
IS25 IS35


Recommended Cutting Conditions for Ceramic Grades




Ceramic Grades for Machining Super Alloys

GradeVc
m/min
Feed
m/rev
Depth of
Cut mm
ApplicationFeatures
IW7200-4000.1-0.30.5-2.5Whisker-reinforced ceramic grade, provides high hardness with excellent toughness for machining Ni based high temperature alloys such as Inconel, Waspaloy etc.
IS25200-3500.1-0.41.0-4.0Reinforced SiAlON composite grade, Excellent for machining Ni based high temperature alloys such as Inconel, Waspaloy etc.
IS9180-2300.1-0.31.0-3.0A very tough grade with high cutting edge stability. Used for roughing to finishing applications on Ni based high temperature alloys and ductile cast iron.
IS35150-2500.2-0.51.0-4.5SiAlON ceramic grade, provides high hardness with excellent toughness for machining Ni based high temperature alloys such as Inconel, Waspaloy etc.
Suitable for high feed rate and depth of cut.
Continuous cutLight interruptedHeavy interrupted



Edge Preparation and Recommended Applications
T-Land Sizes for Standard Items

For semi-finishing and
finishing
f < 0.2 mm/rev
For semi-roughing and roughing
f > 0.2 mm/rev






Applications
  • Aviation, aerospace and medical equipment industries.
  • When replacing whisker grades with ISCAR’s new grades, we recommend increasing the feed. If tool life is too short, the cutting speed should be reduced.



Note: ISCAR is phasing out all turning inserts made from grade IS9, including the following items:

Cat.No.Description
5795452CNGN 120408EIS9
5720017CNGN 120412EIS9
5720019CNGN 120708EIS9
5720020CNGN 120712EIS9
5720021CNGA 120408EIS9
5720015RNGN 120400EIS9
5720013RNGN 120700EIS9
5607362RNGN 120700TIS9
5794540RNGN 120700T01020IS9
5798896RNGN 190700T01020IS9
5701808RNGX 1207 CHIS9
5796533SNGN 120408EIS9
5720016SNGN 120416EIS9
5720022TNGN 160408EIS9
5720023TNGA 160408EIS9



RPGX-Ceramic
Round Ceramic Inserts for Machining Nickel Based Alloys and Hardened Steel
Tools can be supplied on request


RNGN-Ceramic
Round Double-Sided Ceramic Inserts for Machining Cast Iron,
Nickel Based Alloys and Hardened Steel



RCGX-Ceramic
Round Ceramic Inserts for Machining Nickel Based Alloys and Hardened Steel



CNGN-Ceramic
80° Rhombic Double-Sided Ceramic Inserts with a T-Land for Machining Cast Iron,
Hardened Steel and Nickel Based Alloys
(1) Wiper edge configuration for finishing operations at high feeds


CCLNR/L
Clamp Lock Tools Carrying the Ceramic Negative 80° Rhombic Inserts



CRDNN
Clamp Lock Neutral Tools Carrying Ceramic Round Negative Inserts



CRGNR/L
Clamp Lock Tools Carrying the Ceramic Round Negative Inserts



CRGCR/L
Clamp Lock Tools Carrying Ceramic Round 7° Positive Inserts
* Optional, should be ordered separately


CRDCN
Clamp Lock Neutral Tools Carrying Ceramic Round 7° Positive Inserts



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