LAMINA - katalog | KL-TECH s.r.o. | www.klte.cz Lamina | Page 325

KL-TECH s.r.o | www.klte.cz TECHNICAL INFORMATION HELICAL INTERPOLATION DRILLING - IRREGULAR WORK SURFACES The example below shows a hole-making operation in a workpiece with irregular surface and weak set-up. When using a drill body, until the full engagement is achieved, the operation is unbalanced causing vibrations, demanding a large feed rate reduction, with high risk of insert breakage. It can reduce the productivity in some cases. Irregular surfaces / Unbalanced operation Full engagement area HELICAL MILLING - IRREGULAR WORK SURFACES In this case, the helical milling machine strategy is the best option because it has: 1. 2. 3. 324 Good chip control and evacuation Better surface quality and dimensional tolerances Lower power consumption and vibration tendencies = more machining stability