Crankshaft grinding with EHWA CBN grinding wheels

The crankshaft converts the energy gained from the combustion chamber into a rotary motion. Due to the speed ranges required in the engine and the high torques that must be achieved in comparably small engines today, these components are exposed to high thermal and mechanical loads. For this reason, crankshafts have a hard surface and a tough core and are usually made of high-alloy heat-treated steel or special types of cast iron. Translated with www.DeepL.com/Translator (free version)

The high surface hardness poses a major challenge for economical grinding processes. EHWA has taken on this challenge and developed a special bond for the economical grinding of crankshafts.

CBN Kurbelwellenschleifen_EHWA

VEWN | EHWA vitrified bond

Case study | External cylindrical grinding | Cast alloy :

Process parameters:

  • Material:  Cast alloy FCD

  • Workpiece diameter: 60mm

  • Diameter grinding wheel: 650mm

  • Peripheral speed - grinding wheel: 80m/s

  • Feed - grinding wheel: 0,05mm/s

  • Stock removal grinding wheel: 1,2mm / D

  • Specification-EHWA: B151 L200 VEWN

Increase the lifetime of the grinding wheel by up to 20%

Advantages of the EHWA CBN grinding wheel:

  • Longer dressing interval = longer lifetime

  • Constant surface quality = high profile stability

  • Reduction of thermal and mechanical stress on the workpiece