ArticlePolymers2021
Fused Filament Deposition of PLA: The Role of Interlayer Adhesion in the Mechanical Performances.
Article in Polymers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Additive Manufacturing of High-Performance Polymers for Extreme Environments.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- The Impact of Coloring Additives on Thermal, Mechanical, and Tribological Properties of FDM-Printed Components.Polymers · 2026Article
- Effects of In Situ Preheating Technology on Mechanical Properties and Microstructure of FFF-Printed PEEK.Micromachines · 2026Article
- Mechanical Recycling of a Short Carbon Fiber Reinforced Polyamide 6 in 3D Printing: Effects on Mechanical Properties.Polymers · 2025Article
- Influence of Layer Thickness and Extrusion Temperature on the Mechanical Behavior of PLA-Flax TPMS Sandwich Structures Fabricated via Fused Filament Fabrication.Materials (Basel, Switzerland) · 2025Article
- Enhancing the Mechanical Properties of Co-Cr Dental Alloys Fabricated by Laser Powder Bed Fusion: Evaluation of Quenching and Annealing as Heat Treatment Methods.Materials (Basel, Switzerland) · 2024Article
- Development of Cost-Effective Sn-Free Al-Bi-Fe Alloys for Efficient Onboard Hydrogen Production through Al-Water Reaction.Materials (Basel, Switzerland) · 2024Article
- Comparison of Fracture Strength of Milled and 3D-Printed Crown Materials According to Occlusal Thickness.Materials (Basel, Switzerland) · 2024Article
- Modeling and self-supporting printing simulation of fuse filament fabrication.Scientific reports · 2024Article
- Processing, Microstructure, and Performance of Robocast Clay-Based Ceramics Incorporating Hollow Alumina Microspheres.Materials (Basel, Switzerland) · 2024Article
- Analysis of Weld Lines in Micro-Injection Molding.Materials (Basel, Switzerland) · 2023Article
- Strategies To Modify the Surface and Bulk Properties of 3D-Printed Solid Scaffolds for Tissue Engineering Applications.ACS omega · 2023Review
- Article
- The Influence of the Process Parameters on the Mechanical Properties of PLA Specimens Produced by Fused Filament Fabrication-A Review.Polymers · 2022Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A set of criteria to enhance mechanical performances of standard specimens (Type V, ANSI D368) made of polylactic acid (PLA) were proposed. Fused PLA deposition was conducted with nozzle temperature ranging from 180 to 230 °C and deposition plate temperature ranging from 70 to 110 °C. Optical microscopy, elastic modulus analysis and density measurement allowed emphasizing the effect of temperature field, also measured during the process, on the morphology and the mechanical characteristics of the specimen. Atomic force microscopy revealed a morphology typical of amorphous samples with globular structures. Poor interlayer adhesion was detected in the part of the specimen located at larger distance from the deposition plate, showing an elastic modulus lower than those measured in the central part (220 MPa vs. 500 MPa). The specimen crystallinity degree was below 3%. The molecular weight between entanglements was adopted as a measure of the interlayer molecular diffusion. A successful diffusion and re-entanglement of the polymer melt at the interface was the key to improving mechanical performance. A mathematical model describing the transient heat transfer during the fused PLA deposition and accounting for solidification and the nonisothermal crystallization kinetics was introduced. Simulated temperature evolutions were consistent with the experimental ones. They were related to the mechanical performances, the morphology, and the molecular weight between entanglements of the parts.
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