Polymer Engineering &Science, EarlyView.A printhead‐mounted plasma nozzle activates the PEEK melt and the borosilicate print‐bed at the instant of contact. Only this simultaneous in‐situ activation of both interfaces yields reliable first‐layer adhesion (0.22 MPa). ABSTRACT Fused deposition modeling of poly‐ether‐ether‐ketone (PEEK) requires a high‐temperature build plate, yet PEEK does not ...
Paul Sager +3 more
wiley +1 more source
Investigation of crack initiation, and mechanical behavior of polypropylene and polymer-based composites under plastic deformation in automotive brake fluid reservoirs. [PDF]
PLoS OneJian Chun L +8 more
europepmc +1 more source
Polymer International, EarlyView.The influence of porosity and infill pattern (architecture) on the mechanical and acoustic properties of FFF‐printed PLA is investigated. Ultrasonic analysis highlights the dominant role of interlayer porosity, revealing anisotropic behavior and a transition in elastic properties with increasing porosity.
Makki Ajmi +4 more
wiley +1 more source
Optimizing Process Parameters in Laser Transmission Welding Solid PC/Porous-PET Using Prediction Models: Experimental Validation and Morphology Analysis. [PDF]
Materials (Basel)Li J +7 more
europepmc +1 more source
Viscoelastic Modeling of Stress Relaxation in Model High‐Performance Covalent Adaptable Networks
Journal of Polymer Science, EarlyView.Covalent adaptable networks, often referred to as vitrimers, contain a certain fraction of bonds that are able to exchange with other bonds. The ability of this bond exchange to relax stress or result in flow of the material depends on the concentration and specific concentration of these bonds in ways that can be quantified.
Broderick Lewis +4 more
wiley +1 more source
A Deep Learning-Based Framework for Offline Robotic Weld Path Generation Using a Single Top-View RGB-D Image. [PDF]
Sensors (Basel)Lee D, Ko B, Park T, Yoon JW, Park H.
europepmc +1 more source
Improving Welding Behavior of ETPU Bead Foams by Surface Modification with Plasticizers
Journal of Polymer Science, EarlyView.Tributyl citrate (TBC) and stearic acid (SA) modify ETPU beads through different diffusion mechanisms. TBC diffuses the bead structure directly after coating, whereas SA remains on the surface until melting and subsequent diffusion during heating. The resulting plasticization improves bead fusion, allowing RF processing at reduced temperature and ...
Alexander Himsel +4 more
wiley +1 more source
Microstructure and Mechanical Properties of Dissimilar Friction Stir Welded T-Lap Joints Between AA5083 and AA7020. [PDF]
Materials (Basel)Torzewski J +6 more
europepmc +1 more source
Direct Measurement of Explosive Impulse From Contact to the Ultra‐Near Field
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Measurement of impulse from explosive charges in contact and ultra‐near‐field regimes remains poorly characterised due to the short duration of loading, high strain rates, and the difficulty of obtaining direct momentum‐based measurements.
R. Alford +3 more
wiley +1 more source
Novel gas tungsten powder filler metal arc welding process. [PDF]
Sci RepEl-Sayed B +5 more
europepmc +1 more source