THE POSSIBILITY OF USING MODERN ADDITIVE TECHNOLOGIES FOR HEAT-RESISTANT NICKEL ALLOYS CONSTRUCTIONS PRODUCTION

Abstract

Additive manufacturing is a modern trend for all industries including aircraft. The article discussedadditive technologies status in nowadays and their application perceptivities for aircraft engine superalloyconstructions building, as well as experience of domestic and foreign colleagues of additivemanufacturing usage. There are general classification features and additive technologies of metalconstructions growing are reviewed. PBF- and DED-technologies technological capabilities are compered.There are main difficulties of powder technologies development in Russia is revealed duringtheir disadvantages analysis. And wire arc additive manufacturing also called WAAM-technology isoffered as alternative way. Main variants of WAAM are discussed. Perspective of WAAM-technologyusage for superalloy construction building is justified by well-studied electric arc welding process.But there is a thermal influence of arc on metal may be a critical disadvantage of method. Nevertheless,the review of works with thermal effect and deposition performance estimation of DLD- andWAAM are showed that WAAM-technology is a perspective method for thermal sensitive alloysconstructions production.