Numerical study on effect of process parameters on material extrusion 3D printing (ME3DP) for porous bone tissue engineering scaffolds

• DOI: 10.1016/j.rineng.2024.102046
• Publication Date: 2024-03-22T12:27:49Z
• Authors: Ramsha Imran; Ans Al Rashid; Refik Polat; Muammer Koç
• Keywords: Three dimensional printing

Bone tissue engineering (BTE) holds promise for treating bone defects, and 3D-printed porous scaffolds are pivotal regeneration. This study explores the impact of material extrusion 3D printing (ME3DP) process parameters (i.e., layer height temperature) on made polyetherimide (PEI) BTE. The intricate relationships shaping scaffold dimensional accuracy, residual stresses, warpage tendencies were unveiled using comprehensive numerical simulations. Our findings reveal that higher heights enhance stability, especially at lower temperatures, reducing maximum displacements. Consequently, lead to critical values. insight is instrumental in optimizing process, vital precise net shape BTE applications. Furthermore, stresses also revealed a correlation between temperatures increased stresses. These emphasize necessity balancing flow, temperature, quality. Therefore, right balance precision mechanical stability producing high-quality meet requirements.