Precise Machining of Micro Dimples in Large Scale Areas.

Machined micro dimples on surfaces are used for many applications, like friction reduction or information storage. For the unrestricted functionality of such surfaces, burr-free dimples are required. Therefore, the relations between the material properties, the tool tip micro geometry and the material separation have to be understood. In this paper the relevant chip and lateral burr formation mechanisms are discussed when machining steel surfaces by cemented carbide tools.