Results 71 to 80 of about 207,013 (295)

Simulation of the deflected cutting tool trajectory in complex surface milling [PDF]

open access: yes, 2011
Since industry is rapidly developing, either locally or globally, manufacturers witness harder challenges due to the growing competitivity. This urges them to better consider the four factors linked to production and output: quality, quantity, cost and
Baili, Maher   +9 more
core   +1 more source

Influence of Particle Shape and Size in Copper‐Based Low‐Temperature Metallization Paste for Solar Cells

open access: yesAdvanced Engineering Materials, EarlyView.
Particle morphology controls the balance between printability and electrical connectivity in low‐temperature AgCu/Ag metallization pastes. Flake‐shaped AgCu particles form extended low‐resistance contacts, whereas spherical particles favor processability at high metal loading. Fine Ag particles further tune void filling and conductive‐network formation
O. Mhirsi   +3 more
wiley   +1 more source

Adaptive Control of Milling Forces under Fractional Order Holds [PDF]

open access: yes, 2007
This paper introduces a novel discrete-time modelreference based control of the tool-work-piece interaction force in a milling process. The novelty of the scheme relies on the use of a fractional order hold (FROH) instead of a traditional zero order hold
De la Sen Parte, Manuel   +1 more
core   +2 more sources

Estimating temperature distribution and heat quantity of spindle shaft for machining centers

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
The thermal issue of spindles for machining centers is still fundamentally unresolved. Thermal problems due to increased temperature of the spindle shaft lead to thermal displacement of the tool axis and an increase in friction torque, consequently ...
Shingo KAJIKAWA   +3 more
doaj   +1 more source

Influence of Fe Particle Size Distribution on Chemical Homogeneity, Microstructure, and Crack Formation in Fe–SiC Powder Blends Processed by PBF‐LB/M

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of Fe particle size on in situ alloying of Fe–SiC powder blends in PBF‐LB/M is revealed. Contrary to expectations, the coarser Fe fraction provides a broader crack‐free processing window and slightly improved elemental homogeneity while producing higher but more variable hardness. The results highlight a complex trade‐off between particle
Anna Luise Strauch   +2 more
wiley   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Discrete-time Model Reference Control of Milling Forces under Fractional Order Holds. Part I: Known Plant [PDF]

open access: yes, 2006
This paper introduces a novel model-reference discrete-time control scheme applied to milling processes. The novelty of the scheme relies on the use of a fractional order hold (FROH) instead of a traditional ZOH used in the manufacturing literature to ...
De la Sen Parte, Manuel   +1 more
core   +3 more sources

Suppression of period doubling chetter in high-speed milling by spindle speed variation [PDF]

open access: yes, 2011
Spindle speed variation is a well known technique to suppress regenerative machine tool vibra- tions, but it is usually considered to be effective only for low spindle speeds.
Arnaud, Lionel   +9 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Influence of material removal on the dynamic behavior of thin-walled structures in peripheral milling [PDF]

open access: yes, 2006
Machining is a material removal process that alters the dynamic properties during machining operations. The peripheral milling of a thin-walled structure generates vibration of the workpiece and this influences the quality of the machined surface.
Arnaud, Lionel   +3 more
core   +1 more source

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