AMPC-C_US-EN

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: 78

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