Heat transfer simulation of material extrusion additive manufacturing to predict weld strength between layers

Poor strength of material extrusion additively manufactured parts has limited the process’s adoption for direct manufacturing of end-use products. These weaknesses are present at material interfaces as a result of material extrusion’s typical deposition. The variety of possible part geometries, along with the multiple toolpath options to deposit material, results in a unique thermal profile that causes varying strength across the part at the...