Abstract
A micro dimple machining is studied to control the surface functions with the micro-scale structures on the solid surfaces. The micro dimples are machined in milling with the inclined ball end mill. When the feed rate of the tool is high enough that the removal areas of the edges do not overlap each other, periodical concave dimples are machined. A mechanistic model is presented to control the shape and the size of the dimples to be machined. The micro dimples were machined on a plate of fine-grained stainless steel to reduce burr formation. Then, the depth of the affected layer was measured in subsurface of the machining area. Finally, the contact angle on the dimple surface was measured to change wettability with the surface structure.
