**2.5 Skeleton arc welding**

Skeleton arc welding is said to be a distinct variant of WAAM. The final part would be fabricated by single dot depositions. The creation of skeleton-like structures in almost every component is possible in this method. These skeleton structures could be employed to make lightweight path-oriented designs into AM and are clever to make bionic-like structures easily. All the materials could be used in this type of WAAM provided the path planning is executed well. A typically employed WAAM by skeleton arc welding with the best path planning is represented in **Figure 3**.
