Results 111 to 120 of about 234,016 (301)

Comparison between Laser and Stamping without Die (SWD) for Micro Tapered Hole Forming

open access: yesApplied Sciences, 2016
The forming of a micro tapered hole is based on nanosecond pulsed laser processing, which conforms to fast processing time and high throughput; however, the microhole quality should be improved.
Yung-Chou Hung   +4 more
doaj   +1 more source

Tribological Performance of Textured Micro Forming Dies

open access: yes, 2016
Aim of this work is the tribological investigation of micro structured surfaces generated by micro milling and the performance testing of a micro structured micro deep drawing die.
Böhmermann, Florian
core  

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

Development and application of methods to characterize micro semi-finished products and micro components

open access: yesMATEC Web of Conferences, 2018
In the production of semi-finished products for the production of microcomponents and the components themselves, the characterization of their physical properties is of particular importance.
Köhler Bernd   +2 more
doaj   +1 more source

Experimental and Numerical Simulation Investigation on Laser Flexible Shock Micro-Bulging

open access: yesMetals, 2017
Laser flexible shock micro-bulging (LFSB) is a novel micro fabrication technology, which combines laser dynamic forming and flexible die forming, which is a type of high strain rate micro-forming. The LFSB of 304 stainless steel foils was investigated in
Huixia Liu   +7 more
doaj   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Surface functionalization of forming using direct laser interference patterning for dry forming applications

open access: yes, 2022
S.108-112Forming processes typically require the use of lubricants to reduce friction and wear of the tools as well as to protect the semi-finished products.
Lang, Valentin   +4 more
core  

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

Formability and Size Effects in Microforming: A Review of Materials, Methods, and Applications

open access: yesITEGAM-JETIA
Micro-manufacturing has drawn significant global attention regarding manufacturing technologies and procedures. Micro-forming is a highly popular method for micro-manufacturing.
Gopi Durgam, Kishor K Dhande
doaj   +1 more source

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