Results 111 to 120 of about 1,605 (261)

Impact of Current Variations on Weld Bead Properties During the Cold Metal Transfer (CMT) Welding of 7075 Aluminium Using an ER4043 Filler Wire

open access: yesEngineering Proceedings
This study investigated into how different current input levels during cold metal transfer (CMT) welding affected the characteristics of the weld bead. For the current variation, three input values were taken: 80 A, 90 A, and 100 A. Weld beads fabricated
Vishal Bhardwaj   +2 more
doaj   +1 more source

Analysis of the Interfacial Bond Strength in Overmoulded Thermoplastic Composites

open access: yesPolymer Composites, EarlyView.
Two‐step injection overmoulding process investigated in this work, showing selective gate injection over a 450 mm demonstrator beam to vary flow length and rib pull‐off mechanical testing with fractographic characterisation of the overmoulded interface.
Casilda S. Villalobos   +5 more
wiley   +1 more source

Effect of Laser Welding Parameters on Weld Bead Geometry

open access: yesResearch Journal of Applied Sciences, Engineering and Technology, 2018
Reuven Katz, Anton Zak, Amnon Shirizly
openaire   +1 more source

Process‐Induced Anisotropy and Fracture Behavior of Pellet‐3D Printed PLA and PLA/Flax Biocomposites

open access: yesPolymer Composites, EarlyView.
Fused Granular Fabrication of PLA and PLA/flax biocomposites, followed by tensile testing and fracture surface analysis to evaluate the effects of raster orientation and layer number on anisotropy and fracture behavior. ABSTRACT Fused granular fabrication (FGF) enables cost‐effective, large‐scale polymer additive manufacturing; however, the mechanical ...
Fernando Ancio   +2 more
wiley   +1 more source

Acrylonitrile Styrene Acrylate (ASA) With Optimized Aluminum Oxide (Al2O3) Nanofiller Content for MEX Additive Manufacturing: Thermomechanical, Rheological, and Quality Metrics

open access: yesPolymer Composites, EarlyView.
Characterization processes for ASA/Al2O3 nanocomposites in MEX 3D printing. ABSTRACT As additive manufacturing (AM) continues to expand, the demand for durable components for outdoor applications is increasing. Acrylonitrile styrene acrylate (ASA), a weather‐resistant polymer, is widely used in these applications, and improving its performance could ...
Nectarios Vidakis   +8 more
wiley   +1 more source

Mechanical and Impact Response of Adhesively Bonded ASA/PA12 Sandwich Structures Produced by Fused Filament Fabrication

open access: yesPolymer Engineering &Science, EarlyView.
Adhesively bonded ASA/PA12 FFF sandwich structures reveal that interfacial compliance governs mechanical performance. Cyanoacrylate enhances strength but induces brittle failure, while polyurethane improves ductility and impact resistance, demonstrating that adhesive properties and stacking sequence are critical design parameters for optimizing multi ...
Berkay Ergene   +3 more
wiley   +1 more source

Enhancing PET Printability via Solid‐State Polymerization: Structure‐Processing‐Properties Relationships

open access: yesPolymer Engineering &Science, EarlyView.
Solid‐state polymerization (SSP) enhances rheological properties, filament stability, and adjusts crystallization issues for improved PET 3D printability. ABSTRACT This paper aims to investigate the impact of solid‐state polymerization (SSP) on the printability of PET for 3D printing.
Benjamin Sandei   +5 more
wiley   +1 more source

In Situ Atmospheric Plasma Treatment Enables First‐Layer Adhesion of PEEK on Borosilicate Glass for FDM‐Printed Non‐Assembly Mechanisms

open access: yesPolymer 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

How digital platforms affect local entrepreneurial activities: Evidence from the staggered entry of craigslist

open access: yesStrategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Access to markets is critical for entrepreneurial success, yet many face significant barriers. This study argues that digital platforms functioning as peer‐to‐peer marketplaces can facilitate entrepreneurial activity by improving market access for new ventures.
Daehyun Kim, Yongwook Paik, Namil Kim
wiley   +1 more source

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