Общий каталог Sumitomo 2019 - 2020 - страница 1001

OthersBrazedReamersIndexableIndexableInsert TypeHead TypeSolidDrilling SumiReamer SR Type ■ Troubleshooting Failure Countermeasures Failure Countermeasures Enlarged Diameter Return Mark · Reduce the runout as much as possible(use a holder with a diameter correction mechanism).· Decrease the cutting speed.· Increase the feed rate.· Increase the coolant concentration.· Reduce the stock removal.· Check the cutting edge for damage(whether there are built-up edges).· Change the reamer diameter.· Reduce the runout as much as possible(use a holder with a diameter correction mechanism).· Check the cutting edge for damage(whether there are built-up edges).· Reduce the stock removal.· ‌C hange to an insert with a sharpercutting edge shape.· Decrease the return (lifting) feed.J Tapered Hole · Reduce the runout as much as possible Irregular Cutting Noise (use a holder with a diameter correction mechanism). · Decrease the cutting speed.· Decrease the feed rate.· Adjust the coolant concentration.· Review the pre-machining process.· Review the clamping method of the workpiece.· Compare the hole diameters when the workpiece· Decrease the coolant concentration.· Increase the stock removal.· Check the cutting edge for damage.· Change the approach angle of the insertcutting edge. is clamped and when it is unclamped. · Check and correct the direction of chip evacuation. Chatter marks on machined surface Small Work Diameter · Reduce the runout as much as possible (use a holder with a diameter correction mechanism).· Change the approach angle of the insertcutting edge.· Review the clamping method of theworkpiece.· Decrease the cutting speed.· Replace the insert.· Decrease the coolant concentration.· Increase the stock removal.· Increase the cutting speed.· Decrease the feed rate. · Increase the feed rate. Poor Surface Roughness · Check the cutting edge for damage. · Reduce the runout as much as possible (use a holder with a diameter correction mechanism). · Check whether the cutting conditions are within the recommended range. · Change to internal coolant supply. · Increase the coolant concentration. ● Precautions for SD Type (Centre Bolt Clamp Type) T his product can be used for both through-hole and stop-hole drilling. However, the head of the centre bolt protrudes from the end of the body, so ensure clearance by referring to the protrusion of the centre bolt (LFA) shown in the dimension table. [For Through Boring] [For Stop Boring] Obstacle Bottom Face of Workpiece J141