MaxiMill HEC for finish milling of cast iron components in high volumes

Ceratizit's Maximill HECrange as been developed principally for the medium to finish milling of cast iron components in high volume applications, particularly cylinder blocks and heads on modern CNC machines. Tool diameters from 50 to 160 mm are available as standard. Some of the key benefits of Maximill HEC are reduction in cutting forces, optimised surface quality and increased tool life. The careful positioning of alternate inserts and the option of positive geometry inserts reduce cutting forces, especially axial thrust, despite the close insert pitching necessary for high productivity. Also, as a result of the insert location, it is possible to use all eight edges of the insert subject to a maximum depth of cut. The robust tangentially mounted inserts have been subject to extensive research and development, says Ceratizit, which invested in specialist pressing technology that configures the press to move in two perpendicular axes, allowing a positive geometry to be formed on the insert, something that is impossible to produce with conventional presses. Completing the package is a selection of insert grades including two coated carbide grades, silicon nitride ceramics and a new coated CBN grade, CTL3215, the latter using a specially optimised Ceratizit Hypercoat coating, to deliver an exceptional tool life advantage.