Hardened steel, known for its high hardness and high strength, traditional machining methods are often not enough, and complex workpieces are even more difficult to deal with. But now, with PCBN inserts, hardened steel machining is no longer a problem!
Hardened steel hardness is extremely high, almost no plasticity, cutting process cutting force, high temperature, wear resistance and heat resistance of the tool put forward very high requirements. At the same time, the surface roughness after machining is required to be strict, the knife edge is easy to crumble and wear, it is crucial to choose the right tool.
PCBN, or polycrystalline cubic boron nitride, is a superhard material made of cubic boron nitride micropowder sintered by high temperature and high pressure. It has high hardness and good red hardness, and is particularly suitable for machining hardened steel above HRC45. Whether for roughing or finishing, PCBN inserts show excellent performance.
High hardness: the hardness of PCBN inserts is second only to diamond, which can easily cope with the machining of hardened steel and other high hardness materials.
Good red hardness: it can still maintain good hardness and cutting performance under high temperature, effectively prolonging tool life.
Strong wear resistance: the cutting edge is not easy to wear during the cutting process, reducing the number of tool changes and improving machining efficiency.
High machining accuracy: it can obtain precise and high finish working surface and improve product quality.
Optimisation of cutting dosage
When machining hardened steel with PCBN inserts, the choice of cutting dosage is also crucial. Cutting speed, depth of cut and feed need to be flexibly adjusted according to the specific workpiece material and machining requirements. Generally speaking, the cutting speed of PCBN inserts can reach 100-200m/min, which is much higher than that of ordinary carbide and ceramic tools.
Berlt PCBN inserts real-life examples
Berlt is a leader in the field of PCBN inserts for hardened steel machining. Below are two real cases:
Case 1: Precision turning gear bore
Workpiece material: 20CrMnTi, HRC58-62
Tool selection: Berlt PCBN monolithic composite turning insert BT6000 CCGW09T308-F
Cutting parameters: Vc=120-180m/min, ap=0.1-0.3mm, f=0.15mm/r.
Processing effect: 1.5 times higher tool life than a brand of ceramic inserts, machining efficiency increased by 1 times!
Case 2: Machining ball cage cage
Workpiece material: 20CrMnTi, HRC58-62
Tool selection: Berlt PCBN integral welding insert BTS6000 CNGA120408-ZH
Cutting parameters: Vc=100-130m/min, ap=0.3mm, f=0.2mm/r.
Processing effect: 2 times higher tool life than a brand of ceramic inserts and 1.2 times higher processing efficiency!
PCBN inserts are ideal for hardened steel processing due to their excellent performance and high efficiency. berlt, as a professional manufacturer of PCBN inserts, can help you easily meet the challenges of hardened steel processing with its high quality products and professional technology, which can improve the processing efficiency and create more value!
