The injection molding process is a manufacturing technique used to produce plastic parts in large volumes with high precision. The working principle of the injection molding process involves several steps:

The injection molding process offers several advantages, including high production efficiency, repeatability, and the ability to produce complex geometries with tight tolerances. However, it also requires significant upfront investment in tooling and equipment and may not be suitable for low-volume production or prototypes.

In the context of comparing the tensile properties of ABS produced by injection molding with those produced by Fused Deposition Modeling (FDM), understanding the principles of each process is essential. Injection molding typically results in parts with higher mechanical properties and surface finish compared to FDM, due to the differences in processing conditions and material behavior. FDM involves layer-by-layer deposition of thermoplastic filament, which can lead to anisotropic properties and lower mechanical performance compared to injection-molded parts. Therefore, a comprehensive review of literature on the principles and processing parameters of each method would provide valuable insights into the differences in tensile properties observed between the two manufacturing processes.