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REAMING | ALVAN® Reaming Systems by S.C.A.M.I.

Troubleshooting Guide

A

DRILLING

Oversized Hole • Reamer is running eccentric to the center of the machine spindle.

Use modular system with radial adjustment.

• Excessive misalignment causing reamer to cut on back taper.

Fix the misalignment.

• Material buildup on cutting edges.

Replace the coolant or change the cutting speed.

• Reamer diameter is too large.

Use smaller reamer or regrind existing reamer.

B

Undersized Hole • The reamer diameter is too small.

Use larger reamer.

• The reamer diameter is worn.

Expand, regrind, or replace the reamer.

BORING

• The coolant is not suitable.

Replace the coolant.

• Stock allowance is too small. • The cutting speed is too low.

Increase the stock allowance.

Increase the cutting speed.

Tapered Hole • Excessive misalignment.

C

Correct the misalignment.

REAMING

Burr at Hole Entry • Excessive misalignment.

Correct the misalignment.

D

Hole is Not Straight • Concentricity and alignment error between the workpiece and the tool.

Correct the misalignment and use the

BURNISHING

modular system with radial adjustment. • Asymmetrical cutting or angled surfaces.

Create a chamfer on the lead-in.

Poor Hole Finish • One cutting edge is chipped.

Regrind the reamer.

• The lead-in is irregular. Regrind the reamer. • Back taper on the cutting edge is too great.

Regrind the reamer.

E

• Excessive misalignment.

Correct the misalignment or use the modular system.

• Cutting data is not correct.

Verify the cutting data.

THREADING

• Poor chip evacuation.

Verify the coolant volume and pressure or use through-tool coolant.

Reamer Creates Excessive Torque Loading • Back taper on the cutting edge is too small.

Regrind the reamer.

• The radially ground land is too wide.

Regrind the reamer.

• The coolant is not suitable.

Replace the coolant.

X

SPECIALS

C: 96

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