Increased Holemkaing Productivity - Cool Jet Systems - #1

Patrick Waurzyniak, Senior Editor

s manufacturers seek to push the espace and automotive operations,holemaking efficiencies can lead toK » productivity. Holemaking encompassoperations, including drilling, boring, reamingthat are critical to aerospace and automotive part

New materials, including improved carbide grades, more aggressive geometries, and specialized PVD and PCD coat­ings are helping manufacturers achieve faster, more efficient drilling. Typically the first operation in holemaking, drilling demands not only reasonable per hole cost efficiencies, but also highly accurate machining of holes in parts critical to

safety and performance in aero­space and automotive manufactur­ing. Indexable drills offer the most cost-efficient drilling with the low­est cost per hole while carbide grades, brazed drills, and high­speed stainless steel drills feature greater accuracies at higher cost. Aerospace and medical applications requiring high accuracy can take advantage of new carbide drills from Kennametal Inc. (Latrobe, PA) that offer a low-thrust cut­ting geometry designed to avoid bending thin-wall, high-temperature alloy parts. Kennametal's new DynaPoint Sculptured Edge (SE) 284 and 285 uncoated carbide drills