Hard turning HRC65
CBN insert for Hard turning hardened steel with HRC65 after hear treating Usually ,hard turning hardened steel with HRC65 will use carbide insert and ceramic insert ,but carbide insert don’t have high hardness ,when turning hardened steel ,it will don’t have long tool lifetime. Ceramic insert have high hardness ,but brittleness will be large .when meet interrupted turning condition ,it will be easily chipping easily . In modern machining process, the main cutting tools for hard turning hardened steel with HRC65 after heat treatment will be cbn insert. It has high hardness, excellent wear resistance ,impact resistance and long lifetime. Follows are CBN insert which suit for hard turning hardened steel : BN-S20 Solid CBN insert , it use non-metal adhesive, which make sure high hardness, excellent wear resistance and impact resistance. The insert will not chipping easily, can large allowance turning hardened steel ,roughing ,semi-finishing and finishing .also with high speed turning ,has long lifetime ,improve the processing efficiency, saving the processing cost. BN-H10 Compound PCBN insert ,which can realize high speed finish turning hardened steel part with hardness above HRC50, it suit for continuous turning; such as finish turning 20CrMnTi. BN-H20 Soldering CBN insert, which can hard turning hardened steel instead of grinding process, it mainly used for interrupted finish turning the inner bore or the hard surface and improve the processing efficiency. Application Case as follows: 1.BN-H10 CNGA120408 hard turning Gear (1)Machining PartGears (2)Machining Materials: Gear Steel (3)Work piece Hardness: HRC 58~63 (4)Inserts Grade:BN-H10 CNGA120408 (5)Cutting Type: Continuous Cutting ,Dry Cutting (6)Cutting Parameters: ap=0.2mm,f=0.1mm/r,Vc=180m/min Linear
Lifetime/cutting
Machining
Speed(m/min)
dege
Time/pcs
BN-H10
180
800 pcs
6S
Ceramic Inserts
130
150 pcs
8.5 S
Inserts Materials
Manufacturers should choose cbn insert for hard turning hardened steel if the hardness above HRC45. It not only will reduce the process cost ,but also improve the processing
BN-H10