Mass production of extremely precise bores in chrome steel 1.4301, 1.4305 and 1.4307

Challenges

The challenges of internal turning of chrome-nickel steel 1.4301, 1.4305 and 1.4307 are diverse and demanding. The tool quality in particular plays a crucial role. This is due to the high thermal and mechanical load on the cutting wedge. Wear caused by abrasion, adhesion or diffusion manifests itself as flank wear on the flank surface of the tool and as crater wear on the chip surface. These challenges require innovative solutions to improve the efficiency of the machining process and extend the service life of the tools.

Consequences

The consequences of premature tool wear when internally turning chrome-nickel steel 1.4301 or 1.4307 are serious and can affect the entire production chain. The wear affects the surface roughness of the machined workpieces, which in turn leads to dimensional deviations. Compliance with the required target values of the workpiece geometry is thus impaired, which can lead to production interruptions and scrap. The problems are even more accentuated in internal thread turning in particular and lead to additional challenges such as annoying tool breakages. These complications lead to increased production costs, time pressure and an impairment of the profitability of the order. The need to replace tools more frequently increases operating costs, while the time spent fixing problems further reduces productivity. Overall, companies are facing significant economic pressure to improve the efficiency and reliability of their machining processes.