CoroMill® Century – bi-metal machining process without burring, chipping or scratching

Many modern engines use cylinder blocks that consist of grey cast iron liners casted together with aluminium. This makes machining engine block deck faces a considerable challenge.

Sandvik Coromant has developed a process in which bi-metal cylinder blocks can be machined without burring, chipping or scratching using CoroMill Century.

Features and benefits

• Reliability and surface quality according the component specification of demands
• Typical surface finish achieved Rz 2.12 - 3.86 / Rt 2.52 – 4.43
• Depending the application, the process can be done in 1 or 2 machining steps
• Smallest cutter diameter always in correlation with the cylinder liner outer and inner diameter
• Standard wiper insert CB50
• MQL application

Application

• Bi-metal machining method (aluminium cast iron) on fire face, deck face, top face cylinder blocks in standard machine centre (M/C)