Study of the Machinability of an Inconel 625 Composite with Added NiTi-TiB2 Fabricated by Direct Laser Deposition

This work studies the process feasibility of milling a metal-matrix composite based on Inconel 625 with added NiTi-TiB2 fabricated by direct laser deposition. The is intended for manufacturing turbine blades and it has strength characteristics par those 625. However, addition TiB2 improved its heat wear resistance. material new, machinability not been studied. new was milled end mill cutters, recommendations were worked out cutting speed, feed per tooth, cutter flank angle, as well depth width milling. teeth more intense. After land back surface tooth had reached 0.11–0.15 mm, there sharp increase in forces applied which followed brittle fracture tooth. Milling at speed 25 m/min ensured 28 min stable operation. afterwards critical value 0.11 mm quickly approached 50 m/min, after 14 min. Dependencies vs. time all selected speeds throughout entire testing period have tendency to increase, indicates influence forces. It found that durability cutters increases an decrease depth.