###### Abstract
The authors also reported that changing the unit cell design parameters, including the strut number, ligament length, and node radius, could help to tune the appropriate auxetic behavior. To obtain the desired mechanical properties, [PERSON] et al. [28] proposed an innovative strategy of using lightweight replicative structures of various sizes and orders of magnitude. The ultralight replicative structures with a strut diameter of 100 \(\upmu\)m demonstrated incredibly good mechanical characteristics when compared to solid materials. It is worth noting that no additional support structures were required for the successful fabrication of these replicative structures utilizing L-PBF due to the small diameters of the struts. However, due to the additional requirements of high pressure to inflate the stent post-implantation within the artery, higher mechanical properties are not normally recommended for a stent geometry. As a result, the L-PBF fabrication of aortic stents with larger strut and stent diameters necessitates the inclusion of additional support structures. To realize the manufacturability of a filigree component like an aortic stent, the L-PBF technique includes support structures. Support structures, on the other hand, are unnecessary, and it is vital to remove them residue-free after manufacturing in order to obtain the near-net shape of final component geometry. As a result, rather than tackling the support structure design and support removal procedures individually, it is important to consider them as a single challenge. An integrative experimental approach is the best alternative to achieve a feasible solution due to the difficulties involved in combining the support structure design and support removal strategies, as well as determining the essential boundary conditions through simulation and modeling. The majority of previous support structure design optimization research was focused on topology optimization concepts or a combination of simulation and topology optimization [29; 30; 31]. Computer simulation was used in several of the studies to optimize the designs, which was then followed by experimental validation through manufacturing [32; 33]. Experimentation is essential to confirm the appropriateness of simulated optimal support structure designs for manufacturing. This is because an optimal design must be capable of realizing a final component geometry that is as close to the input CAD model as possible. In addition, for an optimal support structure design, material utilization must be minimized and manufacturing time must be reduced. Furthermore, because support structures are an undesired part of the component, the ease with which they can be removed without leaving residue is crucial. Support structure removal strategies were rarely attempted in the past, with the majority of research focusing on improving the surface properties of L-PBF-manufactured filigree structures associated with manufacturing process design constraints [22]. Supporting structures are often viewed as a hurdle to efficiently combining design freedom and near-net-shape component manufacturing with L-PBF. As a result, the present study took an integrative experimental approach, integrating the optimization of support structure designs with the identification of an effective support removal procedure for the improved design. Three parameters were used to determine an appropriate support structure design: less material consumption, a quicker production time, and a high breaking load indicative of a stable design. In the first step, four distinct support structure designs were selected depending on the area that was exposed to the laser beam. In the next step, two of the best-performing designs were hand-picked, tested, and analyzed further. Two prominent mechanical approaches, SB and GB, were attempted as support removal procedures because of their vast utilization in actual industrial processes. The use of mechanical methods has the apparent disadvantage of adding additional strains to the component.