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REAMERS Troubleshooting USER GUIDE

Cause
Problem
Solution
• Reamer or pilot hole not centered
Hole too large
• Reamer too large • Use a floating reamer chuck or correct pilot hole
• Check size of reamer and correct if necessary
• Cooling / lubrication problems • Change lubricant and increase coolant pressure
dnom
Hole too small • Worn reamer • Replace the reamer
• Reaming allowance too small • Increase reaming allowance
• Cooling / lubrication problems • Change lubricant and increase coolant pressure

dnom
Conical hole • Misalignment between pre-hole • Re-align or use a floating reamer chuck
(larger bottom) and reamer centers

dnom
Conical hole • Misalignment between pre-hole • Re-align or use a floating reamer chuck
(larger entrance) and reamer centers • Secure the tool axially
• Material jammed between reamer and
hole in the upper hole section

dnom
Poor surface finish • Worn reamer • Replace the tool
• Misalignment between pre-hole • Re-align or use a floating reamer chuck
and reamer centers • Increase coolant pressure
• Problems with chip evacuation • Change cutting parameters
• Incorrect cutting parameters • Change cutting parameters or coolant conditions
• Built-up edge

408 ISCAR