Halnn Bn-S20 CBN inserts used for hard turning Mill rolls Hard surface field
So-called hard surface process is collected surface build-up welding,spray welding,spraying,laser cladding technology,Surface heat treatment or nitriding process,etc.The surface of the work piece to obtain higher hardness, wear-resistance corrosion resistance,impact resistance, etc.Aiming at hard surface process,HALNN superhard developed a non-metal adhesive cubic boron nitride cutting tools BN-S20. Specific processing schemes are as follows. 1.Halnn superhard non-metallic adhesive CBN cutting tools BN-S20 rough turning surfacing rolls solution: Processing Materials: Cobalt-based alloys；Processing parts: Surfacing Rolls(hardness HRC45-55);Cutting tools model: BN-S20；Processing procedure: External turning;Cutting parameters:ap=2.5mm，Fr=0.12mm/r,Vc=65m/min；Processing type: Wet cuttingProcessing effect: Compared to carbide cutting tools: The cutting speed of our cutting tools is 4.5 times higher than carbide cutting tools,cutting tool lifetime is 12 times of carbide cutting tools. 2.Halnn superhard non-metallic binder Hard Turning inserts BN-S20 rough machining Spray welding rolls solution: Processing parts: Spray welding parts；Processing materials: Nickel-based alloy powder spray welding parts;Hardness:HRC50Cutting tools model: BN-S20,Processing procedure: External turning,Wet cuttingCutting parameters: ap=1.5mm,Fr=0.15mm/r,Vc=145m/min；Processing effect: Compared Halnn BN-S20 model number with some European brand PCBN cutting tools:cutting speed in the same situation,HALNN BN-S20 cutting tool lifetime is 2 times of PCBN cutting tools life,and cutting tool flank is normal wear,rather than collapse damage,rupture. 3.Halnn superhard non-metallic binder CBN cutting tools BN-S20 rough machining spraying rolls solution: Processing Parts: Cobalt base spare parts, spraying thickness of 2 mm;Processing Materials: Cobalt-based alloy powder spraying roller;Hardness:HRC60Cutting tools model: BN-S20；Roughing cutting parameters: Vc=70m/min,Fr=0.7-0.8mm/r；ap=1.7mm；Finishing cutting parameters: Vc=120m/min,Fr=0.25mm/r;Processing effect: HALNN BN-S20 model number and carbide cutting tools compared: The cutting speed is carbide cutting tools 6 times,Cutting Depth is 3 times of carbide cutting tools,not only improved the processing efficiency,but also reduce processing costs. 4.Halnn superhard non-metallic adhesive CBN cutting tools BN-S20 finishing Laser cladding rolls solution:
Processing parts: Hydraulic prop；Processing Marterials: 27SiMn(The surface hardness after laser cladding is about HRC55);Processing procedure: Semi-finishing and finishing;Cutting tools model: BN-S20 CNMN120712;Cutting parameters: ap=1mm，Fr=0,15mm/r，Vc=145m/min；Processing type: Dry cuttingProcessing effect:Compared to carbide cutting tools: Not only improve processing efficiency,reduce production time,saving processing costs, and surface finish to Ra 0.4, long cutting tool life.
Processing parts: Hydraulic prop；Processing Marterials: 27SiMn(The surface hardness after laser cladding is about HRC55);Processing procedure: Semi-finishing and finishing;Cutting tools model: BN-S20 CNMN120712;Cutting parameters: ap=1mm，Fr=0,15mm/r，Vc=145m/min；Processing type: Dry cuttingProcessing effect:Compared to carbide cutting tools: Not only improve processing efficiency,reduce production time,saving processing costs, and surface finish to Ra 0.4, long cutting tool life.
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