Solid drill bit

for plasticsfor compositesPCD

Stack drilling with LMT Belin One-shot Drills in Sandwich PCD or diamond coated carbide This type of tool is primarily dedicated to aerospace customers. For riveting of CFRP structural components, sometimes in combination with metal parts as Aluminium or Titanium, piles of two or more sheets (“stacks”) have to be drilled. The task is to achieve a capable and efficient machining process that should integrate as many operations as possible. This means drilling, reaming and chamfering in one single “shot”. The challenge for those one-shot operations is not only to respect the extremely tight tolerances while drilling different materials but also to avoid any typical damage symptoms such as delamination or burrs. The solution: Being the LMT Competence centre for reaming and borehole finishing also in Composites & Plastics and engineering partner for French aerospace industry, LMT Belin has the knowledge to design a special tool responding to your specific requirements.