Improving anti-adhesive properties of cutting tool surfaces by nano-/micro-textures

Demand for aluminum alloy composites has rapidly increased, especially in the transport industry. This demand is due to such key advantages as a high strength to mass ratio and high corrosion resistance. However, aluminum chips readily adhere to the cutting edge of the tool used, often leading to tool breakage. To address this problem, we have developed cutting tools with nano-/micro-textured surfaces formed using femtosecond laser technology. Face-milling experiments on aluminum alloys showed that the textured surface significantly improves the lubricity and anti-adhesive properties at the tool-chip interface. (C) 2010 CIRP.