Crankshaft Grinding
The crankshaft converts the energy generated in the combustion process into rotational motion. High speeds and torques subject the component to considerable mechanical and thermal loads.
Process
Crankshafts have a very hard, wear-resistant surface combined with a tough core and are made from high-alloy quenched-and-tempered steels or special cast materials.
EHWA has developed a ceramic bond for this purpose that enables efficient, tool-life-optimized grinding of crankshafts.
What the process gains
Longer dressing intervals
Higher tool life and reduced downtime
Consistent surface quality
Reproducible quality over the entire tool life
Reduced thermal load
Lower risk of grinding burn and microstructural changes
Recommended tools
| Product types | Cylindrical and profile grinding wheels |
|---|---|
| Bond | VEWN – EHWA ceramic bond |
| Grit sizes | B76 – B151 |
Process example
Cylindrical grinding of cast alloy (FCD)
Goal: Increase grinding wheel tool life while maintaining stable process control
| Material | Cast alloy (FCD) |
|---|---|
| Workpiece diameter | 60 mm |
| Grinding wheel diameter | Ø 650 mm |
| Peripheral speed | 80 m/s |
| Feed rate | 0.05 mm/s |
| Stock removal | 1.2 mm/D |
Result
- Fewer dressing cycles, higher machine availability
- More stable process control, consistent component quality
- Lower cost per part
Figures from an approved customer process. Tools are always engineered around the machine, workpiece, and process of the individual case – these figures are evidence, not a guarantee.