Crankshaft
The basic crankshaft design is determined by the number of cylinders and engine layout. To reduce emissions, the mostly forged steel shafts must be increasingly optimised for weight. This requires additional machining steps for already complex components. At the same time, rising combustion pressures lead to higher bending and torsional loads – and therefore stricter quality requirements for dimensional accuracy, strength and surface quality.
PROCESS CONDITIONS
- Multiple spot drilling
- Bore depths up to 800 mm
- Coordinated process parameters for simultaneous drilling and deburring
- Coaxiality
- Varying machining conditions due to casting fluctuations
1. Flange and spigot Surface
NeoMill-16-Face
- Maximum number of teeth and indexable inserts with 16 usable cutting edges for low costs per component.
2. Oil bore
MEGA-Deep-Drill-Steel
- Optimised geography and HiPIMS coating for process-reliable deep drilling with high feeds.
3. Zentrale Erleichterungsbohrung
TTD-Bohrentgratwerkzeug
- Wechselkopfsystem mit TTS-Schnittstelle und wechselbare Fasschneide zum Vor-und/oder Rückwärtsfasen.
4. Stirnlagerbohrung
1. Vorbearbeitung
WP-Bohrer
- Kurzes, stabiles Werkzeug mit mehreren integrierten Prozessschritten in einem Werkzeug (Schruppen, Aufbohren, Anfasen).
2. Fertigbearbeitung
Hochleistungsreibahle
- Mehrschneidige Plug-and-play-Reibahle zur Finish-Bearbeitung von Durchmesser und Fase.