Results 41 to 50 of about 90,054 (299)

Study on Design and Additive Manufacturing of Customized Bionic Sports Sole for the Elderly

open access: yesIEEE Access, 2021
This paper proposed a rapid design and additive manufacturing method of customized bionic sports sole with high performance for the elderly. A parametric modeling software of human foot is developed, which can realize the rapid measurement and modeling ...
Jiaqing Xie   +5 more
doaj   +1 more source

Analysis and optimization of cooling channels performances for industrial extrusion dies [PDF]

open access: yes, 2021
Liquid nitrogen cooling is widely used in the extrusion industrial practice in order to increase the production rate, to reduce the die temperature and to avoid defects on the profile exit surfaces resulting from an excessive heating.
Luca Tomesani   +4 more
core   +1 more source

Effect of extrusion conditions on microstructural characteristics and mechanical properties of SEN6 magnesium alloy

open access: yesJournal of Materials Research and Technology
This study investigates the influence of extrusion conditions on the microstructure and tensile properties of Mg–6Al–0.3Mn–0.3Ca–0.2Y (SEN6) alloy, which is processed at various extrusion temperatures and ratios.
Hyun Ji Kim   +6 more
doaj   +1 more source

Effect of Punch Surface Grooves on Microformability of AA6063 Backward Microextrusion

open access: yesMicromachines, 2021
In order to apply conventional forming processes at the micro scale, the size effects caused by material properties and frictional effects must be taken into account.
Tatsuya Funazuka   +4 more
doaj   +1 more source

Optimizing the Zn and Mg contents of Al–Zn–Mg wrought alloys for high strength and industrial-scale extrudability

open access: yesJournal of Materials Research and Technology
High-strength Al alloys of the 7xxx series are promising candidates for further light-weighting of car bodies. However, they are difficult to process by extrusion: complex geometries in particular pose a major challenge due to high extrusion pressures ...
Aurel Arnoldt   +3 more
doaj   +1 more source

Material constitutive behaviour and microstructure study on aluminium alloys for friction stir welding [PDF]

open access: yes, 2010
The material constitutive behaviour and microstructure of Aluminium alloys 6082 and 7449 were studied with the Gleeble hot compression test. The novel aspect of the work is that the testing was done at high strain-rates and at temperatures within 5 K ...
Colegrove, Paul A.   +4 more
core   +1 more source

Extrusion of Multi-Material Components [PDF]

open access: yesVolume 2: Processing, 2014
Three innovative extrusion processes for the manufacture of multi-material parts are discussed: co-extrusion of discontinuously steel reinforced aluminum profiles, composite extrusion of continuously steel wire reinforced profiles and composite rod extrusion.
Nooman Ben Khalifa   +4 more
openaire   +1 more source

Effects of high gravity on properties of parts fabricated using material extrusion system by additive manufacturing

open access: yesHeliyon
Additive manufacturing (AM) has gained significant attention in recent years owing to its ability to fabricate intricate shapes and structures that are often challenging or unattainable using conventional manufacturing techniques.
Xin Jiang, Ryo Koike
doaj   +1 more source

Mesoscale Modeling of Extrusion and Solidification During Material Extrusion Additive Manufacturing

open access: yesRecent Progress in Materials, 2023
In this work, we apply a multiphysics approach to fused deposition modeling to simulate extrusion and solidification. Restricting the work to a single line scan, we focus on the application of polylactic acid. In addition to heat, momentum and mass transfer, the solid/liquid/vapor interface is simulated using a front-tracking, level-set method.
Jeffrey B. Allen   +3 more
openaire   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

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