Results 61 to 70 of about 31,137 (223)

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Development and application of a hybrid PDC bit for drilling the high temperature granite formation in the deep geothermal exploration well Fushenre-1

Energy Geoscience
Geothermal energy is a clean and renewable energy with significant potential. During the drilling process of geothermal development, conventional drill bits often suffer from significant wear and severe cutter breakage.
Huaizhong Shi, Senlin He, Chao Xiong, Zhongwei Huang, Wenhao He, Gensheng Li   +5 more
doaj   +1 more source

UNSTEADY OPERATING MODES OF THE MAIN DRIVE UNIT OF A MACHINE-TOOLS FOR SOLID RAILWAY WHEELS PROCESSING

Nauka ta progres transportu, 2018
Purpose. The paper deals with determining the conditions of the dynamic overload formation for a drive unit in the wheel-processing machine in various unsteady operating modes and suggests ways to reduce it. Methodology.
R. P. Pogrebnyak
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Simulation Analysis of the Planetary Reducer Mechanism of Shearer under Extreme Condition

Jixie chuandong, 2016
To study the dynamic characteristics of planetary reducer mechanism of shearer cutting unit under complex coal seam condition reliability,the shearer rigid- flexible coupling model is established.
Zhao Lijuan, Gai Dongmin, Tian Zhen, Liu Xunan, Lan Jinbao   +4 more
doaj  

Multi-objective Optimization Method for Pocket Milling Driven by Massive Virtual Machining

Journal of Harbin University of Science and Technology
In response to the critical issues of tool chatter and breakage during the milling process of thin-walled cavity parts in the aerospace field, which significantly impact machining quality and efficiency, this study proposes a dynamic analysis method for ...
SHEN Bin, TU Weiyi, NIE Pengfei, WANG Chenghan, AI Di, WU Jun, ZHENG Zujie, GUO Guoqiang   +7 more
doaj   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

Advanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed, Samuel García Vázquez, Behnam Mardani, Victor Dudarev, Alfred Ludwig, Maribel Acosta, Markus Stricker   +6 more
wiley   +1 more source

Measurement of mass force field driving water refilling of cuttage

Scientific Reports
Cuttage is a common plant cultivation method, and the key to its survival is the restoration of water refilling, which remains unclear up to now.
Mingwei Xu, Ke Li, Yanling Xue, Feixiang Wang, Zhixuan Liu, Tiqiao Xiao   +5 more
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

PHYSICAL-MATEMATICALSCIENCE MECHANICS SIMULATION CHALLENGES IN OPTIMISING THEORETICAL METAL CUTTING TASKS

Вестник Дагестанского государственного технического университета: Технические науки, 2017
. Objectives In the article, problems in the optimising of machining operations, which provide end-unit production of the required quality with a minimum processing cost, are addressed.
Rasul V. Guseynov, Lyudmila M. Sultanova
doaj   +1 more source