305 Каталог INGERSOLL 2011 Режущий инструмент и инструментальная оснастка Стр.307

Каталог INGERSOLL 2011 Инструмент и оснастка Стр. 307 0305 Lab2u

GENERAL APPLICATION INFORMATION Feet per Minute (SFM) in the recommended range and softer materials at the higher recommended speed. At 375 Brinell hardness steel becomes very difficult to machine. Use the slowest recommended speed and the toughest carbide insert available. An edge hone may also be necessary to machine such hard material effectively. Chip color. The color of the chips can also indicate how well your operation is performing. For example carbon steel chips are blue. Stainless steel chips should be silver to straw colored not blue. Titanium and nickel-based material chips should never change color. Indexing Ingersoll inserts. Ingersoll's bent screw design used with on-edge inserts forces the insert into the corner of the pocket. The screw actually bends locking the insert in place. Conventional insert mounting is also common on Ingersoll products. In this case the screw does not force the insert toward the corner of the pocket. Be sure to apply pressure into the pocket while tightening the insert screws. Care should always be taken not to overtighten insert screws. Over-tightened screws can become difficult to remove. Torque requirements are given for each cutter. Indexing Ingersoll cutters is simple due to their design. However care must be taken to make sure that the insert pocket is clean and the insert is properly seated. After the used insert has been removed clean the pocket. Visually inspect the cutter to see that no damage has been sustained from use. Place the insert into the pocket and start the screw. While tightening the screw apply downward pressure on the insert toward the corner of the pocket. A snugness will be felt on the screw as the insert seats. Do not over-tighten the insert screw. Be sure to apply the proper amount of torque listed in Ingersoll's catalogs. If there is any doubt about the insert seating check the seating surfaces with a .001 feeler gauge. If the feeler gauge fits between the insert and the wall of the cutter pocket the insert is not properly seated. Inspect the pocket for cleanliness or burrs and repeat the seating procedure. Cutters that have been damaged may have insert pockets that will no longer allow proper seating. Such tools should be replaced or returned to Ingersoll for repair. 307