Mechanisms of chip formation
Machinability of difficult materials - Application to hardened steels

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Mechanisms of chip formation


Machinability of difficult materials - Application to hardened steels

Author : Gérard POULACHON

Publication date: April 10, 2004 | Lire en français

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4. Mechanisms of chip formation

The cutting mechanisms of hard steels lead to the formation of jagged chips known as "sawtooth" chips, as shown in figure 12 .

This type of chip has already been observed at low cutting speeds when machining titanium or nickel-based superalloys with poor thermal properties. Shaw attributes the formation of these localized bands in these alloys to a concentration of thermal energy in them due to their poor thermal properties. In this case, the concentration of thermal energy in very...

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