Tool insert in a cylinder boring machine for machining a cylinder bore

A cylinder boring machine, comprising:

• a housing having cylinder block fixtures for receiving a cylinder block, wherein said cylinder block comprises a cylinder bore;
• a working head positioned above said housing, wherein said working head comprises a tool holder;
• a first boring tool insert and a second boring tool insert insertable in said tool holder, wherein said first boring tool insert comprises a first body having a first insert clamp at one end and a first cutting edge at the other end, wherein said first cutting edge comprises a first radius at an intersection of said first cutting edge, and wherein said second boring tool insert comprises a second body having a second insert clamp at one end and a second cutting edge at the other end, wherein said second cutting edge comprises a second radius at an intersection of said second cutting edge;
• an operational panel;
• and
• a controller communicatively connected to said operational panel, wherein said controller controls said tool holder,
• wherein said controller is configured to operate said tool holder connecting said first boring tool insert in a rough boring cycle to axially move and rotate in an anticlockwise direction such that said first cutting edge comes in contact with the surface of said cylinder bore to remove the material from the surface of said cylinder bore,
• wherein said first boring tool insert is removable from said tool holder after the rough boring cycle, and wherein said second boring tool insert is insertable in said tool holder after removal of said first boring tool insert,
• wherein said controller is configured to operate said tool holder connecting said second boring tool insert in a fine boring cycle to axially move and rotate in a clockwise direction opposite to the anticlockwise direction of the first boring tool insert such that said second cutting edge comes in contact with the surface of said cylinder bore to smoothen the surface of said cylinder bore, and wherein said second boring tool insert is configured to eliminate torn and folded materials (TFM) left in said cylinder bore after the rough boring cycle by said first boring tool insert, and
• wherein the rough boring cycle and the fine boring cycle cooperate to establish bore geometry of said cylinder bore to a desired size and roughness and to achieve the required surface finish in said cylinder bore with the boring process itself.