Results 61 to 70 of about 221,637 (307)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Numerical Simulation and Analysis of Cycloidal Gear Forming Grinding Temperature Field

Jixie chuandong, 2018
Forming grinding process is one of the methods for finishing the cycloidal gear. When the grinding process parameters are not suitable,the instantaneous heat generated in the grinding zone will cause the tooth surface burn.
Ke Qingxun, Deng Xiaozhong, Su Jianxin, Nie Shaowu, Hu Chenhui   +4 more
doaj  

Damage of the Surface Layer Gears in Grinding Process. [PDF]

, 2013
The influence of the grinding process on the condition of the surface layer (SL) obtained by the treatment of the gear with grinding wheels Al2O3, CBN, GF, SG, alloy steels with different parameters of the grinding process and the type of cooling liquid –
Wlazło, Jakub, Wójcik, Ryszard
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Effect of particle size on the surface properties and morphology of ground flax [PDF]

, 2013
Flax fibers were ground with a ball-mill and four fractions with different size ranges were collected by sieving. These were tested for water sorption, degree of polymerization (DP), copper number, hydroxyl number and analyzed by X-ray diffraction (XRD),
Bandi, Éva, Csiszár, Emília, Fekete, Erika, Koczka, Béla, Sajó, István E., Tóth, András   +5 more
core   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Nonstationary and discontinuous grinding temperature determination

Journal of Mechanical Engineering NTUU "Kyiv Polytechnic Institute", 2013
Выполнен анализ переходных процессов изменения температуры шлифования в подвижной и неподвижной системе координат соответственно для дву- и одномерной математической модели температурного поля. Разработана и исследована математическая модель для определения температуры прерывистого шлифования с учетом геометрических параметров прерывистых шлифовальных ...
Lishchenko, N., Larshin, V.
openaire   +2 more sources

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Calibration of emissivity value of 18CrNiMo7-6 steel and study on cylindrical grinding temperature

Jin'gangshi yu moliao moju gongcheng
To study the variation rule of workpiece temperature concerning machining parameters in the cylindrical transverse grinding process of gear steel, 18CrNiMo7-6 gear steel was selected as the workpiece material, and a CBN grinding wheel was used as the ...
Dong WANG, Rui ZHAO, Zhipeng ZHANG, Yinxia ZHANG, Ruiyong QIAO   +4 more
doaj   +1 more source

Математическая модель теплового процесса при шлифовании материалов [PDF]

, 2018
Предложены новые упрощенные аналитические решения по определению температуры шлифования и глубины проникновения тепла в поверхностный слой обрабатываемой детали, при достижении которой температура равна нулю.
Полянский, Владимир Иванович
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