Composite delamination issue tackled

Available in diameters from 2 to 6.4 mm, it features a special geometry that reduces cutting forces, minimises the risk of delamination of the material, has a longer life than a normal PCD coated tool and has the ability to be re-ground to extend its service life. Due to the production method, the use of sintering technology creates an homogenous material that eliminates any need for brazing of drill tips which can be a source of failure during operational cycles. As the tool has been accurately formed using powder metallurgy, it can be reconditioned and reground several times, offering additional benefits of tool cost and inventory reduction. In a recent application producing holes in an 11.4 mm thick CFRP material having high strength and rigidity but is a low density materials with layers at 0° , 45°, and 90° , the Walter Titex PCD drill performed over 6,000 cycles before negligible signs of delamination began to occur in the workpiece material.