|Differential case, Gearbox house and Cam-shaft|
Generally ductile iron is machined with carbide inserts, both roughing and finishing but when there are high requirements on dimensional tolerances and surface finish, PCBN can be an alternative for the finishing tool. The higher wear resistance of PCBN allows for longer tool life with maintained edge quality, resulting in superior tolerances and surface finish.
Roughing is best done with a hard and wear resistant carbide. Seco’s range of turning grades include TK1001, mainly recommended for grey cast iron, and TK2001, mainly recommended for ductile iron.
For finishing, Seco’s CBN150C is the preferred grade. Grade CBN150C combines the optimum balance between substrate, coating and edge preparation for successful finish machining of high quality ductile iron components.
Depth of cut should be kept as low as possible, 0.1-0.3 mm. Cutting data is similar for carbide and PCBN, about 300 m/min, and feed rates will in finishing depend on surface finish requirement, but is in the range of 0.1 – 0.3 mm/rev. Wiper technology will allows for higher feed rates while maintaining surface finish.
|Roughing with Seco's carbide grade TK2001|
|Finishing with Seco's PCBN grade CBN150C|
For more information, please contact your local Seco representative, or our PCBN team:
Product Specialist SECOMAX PCBN/PCD
SECO TOOLS Shanghai CO., Ltd. Level 2, Building 8, 456 HongCao Rd., Shanghai 200233, China
Office: +86 21 5426 5849
Mobile: +86 186 167 90063
Product Manager SECOMAX PCBN/PCD
SECO TOOLS AB
737 82 Fagersta, Sweden