AMPC-C_DE

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

TroubleshooƟng Guide

A

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

DRILLING

Use modular system with radial adjustment.

• Excessive misalignment causing reamer to cut on back taper.

Fix the misalignment.

• Material buildup on cuƫng edges.

Replace the coolant or change the cuƫng speed.

• Reamer diameter is too large.

Use smaller reamer or regrind exisƟng reamer.

Undersized Hole • The reamer diameter is too small.

Use larger reamer.

B

• The reamer diameter is worn.

Expand, regrind, or replace the reamer.

• The coolant is not suitable.

Replace the coolant.

BORING

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

Increase the stock allowance.

Increase the cuƫng speed.

Tapered Hole • Excessive misalignment.

Correct the misalignment.

C

REAMING

Burr at Hole Entry • Excessive misalignment.

Correct the misalignment.

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

Correct the misalignment and use the

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

D

Create a chamfer on the lead-in.

BURNISHING

Poor Hole Finish • One cuƫng edge is chipped.

Regrind the reamer.

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

Regrind the reamer.

• Excessive misalignment.

Correct the misalignment or use the modular system.

• Cuƫng data is not correct.

Verify the cuƫng data.

• Poor chip evacuaƟon.

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

E

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

THREADING

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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