Abstract
Due to the inherent properties of the process, arc-based generative manufacturing offers the possibility, of specifically applying different material properties locally. One possibility to realize this is the use of different materials. Three approaches are presented to illustrate this option. First, anisotropic behavior in the welding direction is generated. For this purpose, a FeNi36 is specifically combined with a low-alloy ultra-high-strength fine-grained structural steel filler metal. It will be shown that the integral component properties can be specifically adjusted in the welding direction. In addition, the metallurgical and welding characteristics will be discussed. As a second possibility, the use of well plasticizable materials to locally increase the material strength under cyclic loading with locally notched components is presented. For this purpose, an austenitic FeNi36 with good plasticizability and a good yield strength ratio for the application was applied to a fillet weld of a high-strength fine-grained structural steel in the weld seam toe. It is shown that the tolerable cyclic load can be improved by 35% by this procedure. Thirdly, it is shown that the required thickness of corrosion protection layers can be reduced by 50% through a targeted production sequence in arc-based generative manufacturing.
Highlights
The increasing importance of resource-efficient handling of raw materials is driving development to design components more efficiently
An austenitic FeNi36 with good plasticizability and a good yield strength ratio for the application was applied to a fillet weld of a high-strength fine-grained structural steel in the weld seam toe
The presented investigations show that a multi-material component design can be achieved in arc based additive manufacturing
Summary
The increasing importance of resource-efficient handling of raw materials is driving development to design components more efficiently. In arc-based generative manufacturing, a wide variety of alloy systems can be used and combined by changing the necessary filler material. Among other things, graded components made of different materials can be realized [7]. If this idea is extended to the targeted local application of different materials, a multimaterial design can be realized. For this purpose, different materials are combined with each other in order to adjust local mechanical properties to the anticipated load. To conventional alloying systems, novel material concepts such as high-entropy alloys are increasingly being used in additive manufacturing [8]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
