Additive manufacturing is a production method that enables products to be created by accumulating materials in layers. In addition to traditional production methods, it is preferred especially in the defense, healthcare, aviation, and automobile sectors to produce more complex and more durable parts. Machining of materials produced by additive manufacturing methods must be done with more precise methods. There is not enough information in the literature about the machining of materials produced by additive manufacturing. The study was carried out to study the hole drilling operations after the rudder used as an aircraft part in the aviation sector was produced from Ti6Al4V material with EBM and then deciding on the most appropriate cutting tool for this material. Ti6Al4V material with a thickness of 5 mm and dimensions of 10x10 mm was produced by the EBM method. In the study, plates were produced with different laying directions. Direct hole drilling operations have started to be carried out on the plates produced in 90°, 60°, and 0° laying directions, without applying any heat treatment or surface treatment. By choosing a new cutting tool for each laying method, the condition of the cutting tool; It was evaluated according to the laying direction, quality of the hole, drilling time, coolant, and the force applied by the technician. As a result of the experiments, it was concluded that the laying direction affected the hole-drilling operation. Among the three different laying directions produced, the most suitable insert was found to be 20° Helix and 135° tip angle. As a final process, the best results in drilling with reamer were obtained: straight reamer for 90° and 60° laying directions and one shot for 0° laying direction.
ORCID NO: 0009-0009-9480-7801, 0000-0001-7076-77661
Anahtar Kelimeler: Additive manufacturing, Rudder, EBM, Ti6Al4V, Helix angle, Tip angle, Drilling operations.
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