Estimating life-time of tool and bearings
In order to improve cutting performances and surfaces quality, pay attention to the following:
- Small cutting depth – In order to reduce cutting forces.
- Moderate cutting wide – cutting force reduction.
- Optimal feed rate – too low will cause wrong cutting performance, and lead to decreasing in tool lead-time.
- Low emulsion temperature – high temp’ decrees bearing life
- Clean emulsion – polluted emulsion may cause bearings crash.
- Correct assembly procedure – wrong assembly (high axial forces) cause damage to the bearing races leading to reduction in lead time.
- Bearing maintenance – After initial use of the bearings assembly, it is recommended to wash the tool assembly (clean water) and spray maintenance oil before storing.
- Toodle clamping torque – during toodle assembly inside the tool holder, it is recommended to close the toodle inside with moderated torque in order to avoid radial distortion of toodle housing leading to bearing lead-time reduction.
- Tool tolerance – It is recommended to use tight tolerance tools (h5, h6) not higher (h7). High tolerance may cause dynamic run-out of the tool which lead to low surface quality and lead-time reduction.
- Tool choice – Use the right tool (material, coating cutting edge angle…).
- Front Cover tighten – The front cover is part of the axial pre-load system. In case that the front cover is not fully closed, the tool will exhibit radial and axial vibrations.