SumiReamer SR Reamer
■ Troubleshooting Failure
Countermeasures
Failure
Countermeasures
· 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). · 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 is clamped and when it is unclamped. · Check and correct the direction of chip evacuation. · Reduce the runout as much as possible (use a holder with a diameter correction mechanism). · Change the approach angle of the insert cutting edge. · Review the clamping method of the workpiece. · Decrease the cutting speed. · Increase the feed rate. · 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.
Return Mark
Enlarged 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. · Change to an insert with a sharper cutting edge shape. · Decrease the return (lifting) feed.
Irregular Cutting Noise
Tapered Hole
· Decrease the coolant concentration. · Increase the stock removal. · Check the cutting edge for damage. · Change the approach angle of the insert cutting edge.
Small Work Diameter
· Replace the insert. · Decrease the coolant concentration.
Chatter marks on machined surface
· Increase the stock removal. · Increase the cutting speed. · Decrease the feed rate.
Poor Surface Roughness
● Precautions for SD (Center Bolt Clamp Type) This product can be used for both through-hole and stop-hole boring. However, the head of the center bolt protrudes from the end of the body, so ensure clearance by referring to the protrusion of the center bolt ( LFA ) shown in the dimension table. [For Through Boring] [For Stop Boring]
Obstacle
Bottom Face of Workpiece
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