Hole Finishing Reamer Custom Solution Capabilities Reamer Troubleshooting (continued) Problem Cause Possible Remedy 1. Reaming tool running out of centre. • Use equalising adaptor. Conical hole profile wider at drill entry point 2. Slanted cutting surface/asymmetrical • Spot face as drilling preparation. cutting. • Take the direction of impact 3. Workpiece twisted. into account when clamping the workpiece. Surface quality does not meet specification 1. Tool cutters worn. • Use equalising adaptor. 2. Reaming tool running out of centre. • Re-align, use floating head. 3. Incorrect technology data • Change cooling lubricant. (cutting parameters). • Change cutting speed. 4. Inadequate chip evacuation. • Measure reamers and send for repairs. 1. Built-up edge. • Change cooling lubricant. Feed grooves • Change cutting speed. widia.com W33