Cause of Failure
To support you in the proper use of diamond tools we have put together a list with the most common failures and the causes for these failures.
The diamond blade does not cut properly
- The bond of the diamond blade in use is too hard for the material to be cut.
- The drive power is too low due to an incorrect rotation speed, a wrong operation voltage, a loose drive belt or an insufficient engine power.
- The diamond blade has blunted because the cutting speed is too high.
- The diamond blade has been used with too much or not enough pressure on the material to be cut.
- The diamond blade has blunted due to an excessive use in hard materials.
- With a few cuts in an abrasive material the diamond blade can be sharpened again.
Segments breaking off
- The material to be cut is not properly fixed and moving during the cutting process.
- Segments are torn off because the blade jammed or was twisted in the cutting process.
- Diamond blades with a bond too hard for the material to be cut can cause excessive wear of the blade and the loss of segments.
- Heavily worn or damaged flanges can cause a twisting of the blade and segments to be torn off.
- Badly worn drive shafts or bearing shafts can lead to radial offset and segments to break off.
- Local overheating because of insufficient cooling due to a defect cooling system or cutting to deep for the diameter of the blade in use.
- Impact stress on individual segments.
Overheated diamond blades
- Insufficient cooling and/or recommended cooling breaks were not observed.
- The bond of the blade in use is too hard for the material to be cut.
- The diamond blade has been used with too much pressure on the material to be cut.
Excessive wear of the tool
- The diamond blade in use is not suitable for very abrasive materials.
- Insufficient cooling - check the cooling system.
- Radial offset of the blade because of a badly worn drive shaft or a blade in use with a bond too hard for the material to be cut.
- The drive power is too low due to an incorrect rotation speed, a wrong operation voltage, a loose drive belt or an insufficient engine power.
- The feed speed is too high.
- The diamond blade is not held erpendicular to the material because of a worn or damaged drive shaft or reception flange.
- Lateral pressure on the diamond blade because the blade has been used for grinding.
Radial run-out
- The bond of the diamond blade in use is too hard for the material to be cut.
- Wearing of the drive shaft because the diamond blade is not properly fixed.
- Uneven rotation of the drive shaft because of a worn out bearing.
Cracked segments
- The bond of the diamond blade in use is too hard for the material to be cut.
- The feed speed is too high.
Non-circular shaft hole
- The flange is not properly fixed.
- The diamond blade is not properly fixed on the drive shaft, the blade is moving and therefore causing further damage and war of the drive shaft.
- The drive shaft is badly worn.
Contact
Dr. Heinemann
Diamond Tools & Parts GmbH
Sonnenhalde 18-20, 74677 Dörzbach
Telefon: +49 (0) 7937 802 900
Telefax: +49 (0) 7937 802 90 29
E-Mail: service(at)diatools.com