Application Guide for Solid Carbide Drill Bit Wear Problems During Drilling
Solid Carbide Drilling Troubleshooting Guide
Expert solutions for common drilling problems and tool wear issues
The increasing use of cutting tools and solid carbide drills in machining processes leads to more frequent tool wear and application issues. When encountering problems during solid carbide drilling, this comprehensive guide provides actionable solutions to optimize your machining process and extend tool life.
Built-up edges
Common causes: Low cutting speed, excessive honing, uncoated cutting edge.
Recommended solutions:
- Increase cutting speed
- Reduce cutting edge
- Select coated tool
Corners broken off
Common causes: Unstable conditions, significant run-out errors, interrupted cut.
Recommended solutions:
- Change clamping
- Optimize run-out
- Less feed
Significant flank wear
Common causes: Excessive cutting speeds, insufficient feeds, low clearance angle.
Recommended solutions:
- Lower cutting speed
- Increased feed
- Greater clearance angle
Edge breakage on main cutting edge
Common causes: Unstable conditions, interrupted cut, exceeded max wear width, wrong tool.
Recommended solutions:
- More stable clamping
- Reduce feed
- Optimize tool
- Change tool earlier
Round chamfer wear
Common causes: Unstable conditions, significant run-out errors, inadequate tapering, thin emulsion.
Recommended solutions:
- More stable clamping
- Run-out control
- Increase tapering
- Thicker emulsion/oil
Scoring on tool flank
Common causes: Unstable conditions, significant run-out errors, interrupted cuts, abrasive materials.
Recommended solutions:
- Change clamping
- Correct run-out
- Reduce feed
- Thicker emulsion/oil
Heavy wear at chisel edge
Common causes: Low cutting speed, excessive feed, excessive honing.
Recommended solutions:
- Increase cutting speed
- Reduce feed
- Optimize cutting edge (different geometry)
Edge breakage at intersection, drill point, main cutting edge
Common causes: Small clearance angle, excessive honing, incorrect tool.
Recommended solutions:
- Increase clearance angle
- Optimize cutting edge
- Select different tool
Plastic deformation of cutting corner
Common causes: Excessive cutting speeds, insufficient emulsion, incorrect/no corner honing.
Recommended solutions:
- Reduce cutting speed
- Use more coolant
- Correct corner honing
Poor surface quality
Common causes: Significant run-out errors, too little cooling, unstable conditions.
Recommended solutions:
- Run-out control
- Use more emulsion
- Change clamping
Heavy burring on hole exit
Common causes: Excessive feed, excessive honing of main cutting edge.
Recommended solutions:
- Reduce feed
- Reduce cutting edge
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