Results 41 to 50 of about 4,969 (222)

Processability Assessment of Recycled Polymeric Nonwoven Materials in Injection Molding, Film Extrusion and Additive Manufacturing

Polymer Engineering &Science, EarlyView.
Recycled nonwoven face masks are transformed into polymer feedstocks for injection molding, film extrusion, and additive manufacturing. Rheological behavior links composition to processability, enabling material selection and blending strategies.
Daniele Battegazzore, Fulvia Cravero, Giulia Bernagozzi, Rossella Arrigo, Alberto Frache   +4 more
wiley   +1 more source

Local thermal warpage deformation of polypropylene injection molded flat part and neural network prediction model

Frontiers in Materials
Warpage deformation is a typical phenomenon for polymer injection-molded parts, mainly caused by unbalanced cooling, and it is inevitable. Complex process parameters usually lead to uncontrollable thermal behavior of the polymer materials during ...
Jian Wang, Jian Wang, Tao Liu, Tao Liu, Kaihuang Zheng, Kaihuang Zheng, Hao Liu, Hao Liu, Hongdao Cui, Hongdao Cui, Hang Li, Hang Li   +11 more
doaj   +1 more source

Comparing the Applicability of State‐Of‐The‐Art Photopolymer Injection Molds Printed by Multi‐Material Jetting and High‐Performance Digital Light Processing

Polymer Engineering &Science, EarlyView.
The workflow of comparing state‐of‐the‐art photopolymers in rapid tooling. ABSTRACT Additive manufacturing (AM) introduced the concept of layer‐by‐layer manufacturing, which allows the fast and direct production of parts. Additive technologies are also hybridized with conventional polymer processing technologies.
Szabolcs Krizsma, András Suplicz
wiley   +1 more source

Recoater-Induced Distortions and Build Failures in Selective Laser Melting of Thin-Walled Ti6Al4V Parts

Journal of Manufacturing and Materials Processing, 2023
Additively manufactured thin-walled structures through selective laser melting (SLM) are of great interest in achieving carbon-neutral industrial manufacturing.
Xufei Lu, Michele Chiumenti, Miguel Cervera, Mehdi Slimani, Iban Gonzalez   +4 more
doaj   +1 more source

Development of warpage simulation for rotationally moulded parts and the analysis of process parameters

, 2023
There are multiple factors that contribute to the warpage problems where molten part is distorted during solidification in rotational molding. A novel warpage simulation model is developed accounting for the effect of various process parameters like ...
Menary, Gary, Seregar, Jitendra, Martin, Peter J., Kearns, Mark; id_orcid, McCourt, Mark   +4 more
core   +1 more source

In Situ Curing‐Enabled 3D Printing of Continuous Fiber‐Reinforced Thermosetting Composites

Journal of Polymer Science, EarlyView.
In situ curing‐enabled the 3D printing of continuous fiber/thermoset composites, which were reviewed. Particularly, four types of in situ curing, were discussed, including Radiation‐induced curing, photothermal curing, electrothermal curing, and frontal polymerization. AI‐integrated printing was also analyzed.
Xiaofei Wu, Harrison Hayworth, Shiren Wang   +2 more
wiley   +1 more source

Warpage in Material Extrusion Additive Manufacturing of Amorphous and Semicrystalline Polymers

Macromolecular Materials and Engineering
Material Extrusion Additive Manufacturing (MEAM) offers the ability to manufacture complex geometries through layer‐by‐layer deposition. MEAM involves fast heating and cooling of polymers, processes that involve thermal expansion and contraction of ...
Ali Zerriouh, Amani Deghiche, Walid Benayache, Targol Hashemi, Alessandra Bernardi, Sara Liparoti, Maria Laura Di Lorenzo, Dario Cavallo   +7 more
doaj   +1 more source

Analysis of Wafer Warpage in Diamond Wire Saw Slicing Sapphire Crystal

Applied Sciences
During the diamond wire saw cutting process of sapphire crystals, warpage is one of the key parameters for evaluating wafer quality. Based on the thermoelasticity theory and diamond wire saw cutting theory, a finite element model for thermal analysis of ...
Yihe Liu, Dameng Cheng, Guanzheng Li, Yufei Gao   +3 more
doaj   +1 more source

Clinical Applicability of Artificial Intelligence–Driven Implant Planning and Surgical Guide Design in the Maxillary Esthetic Zone: A Registry‐Based Cohort Study

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objectives This study evaluated the accuracy, time efficiency, and workflow consistency of artificial intelligence (AI)‐assisted versus human expert (HI) implant planning in the esthetic anterior maxilla. Material and Methods Thirty‐five single‐tooth anterior maxillary cases with paired cone beam computed tomography (CBCT) and intraoral scans (
Eslam Abdelwahab Dawood, Bahaaeldeen M. Elgarba, Rocharles Cavalcante Fontenele, Reinhilde Jacobs   +3 more
wiley   +1 more source

An Investigation on Warpage Analysis in Plastic Injection Moulding

, 2011
In an injection moulded part, warpage is the distortion caused by non-uniform shrinkage within the plastic part. When looking critically at the causes of warpage, it is found that several key parameters of the moulding process have some effect on the ...
Abul B.M. Saifullah, Syed H. Masood
core   +1 more source