This study by Gürol U et al. investigates the production of multi-material metallic parts using robotic welding-based Wire Arc Additive Manufacturing (WAAM) technology. WAAM is an innovative additive manufacturing technology that offers faster, more cost-effective, and complex 3D part production compared to traditional subtractive manufacturing methods.

Industrial Applications:

WAAM is applied in the production of various products in the defense, aerospace, and automotive industries.

Study Details:

In this study, ferritic ER 70 S-6 and stainless steel ER316L welding wires were combined using robotic WAAM technology to produce multi-material components.

Microstructural and Mechanical Properties:

Microstructural analyses and hardness tests thoroughly examined the interfaces between the two materials.

In the Fe-austenite weld interfaces, the presence of hardened phases was detected due to the migration of hardening elements.

Microhardness tests showed that the highest hardness values were recorded at the interface of the two metals, attributed to the migration of Fe and C.

This study demonstrates that multi-material components can be successfully produced using robotic WAAM technology and highlights its potential for various industrial applications.

For a detailed review, you can access the related study here.