Results 1 to 10 of about 184,387 (277)

Friction stir welding of Haynes 282 Ni superalloy by using a novel hemispherical tool

open access: yesScientific Reports
In the present investigation, friction stir welding (FSW) of a gamma prime (γ′) strengthened Haynes 282 nickel-base superalloy by using a novel hemispherical tool is documented.
Abhishek Sharma   +5 more
doaj   +1 more source

The Evolution of Flexible Electronics: From Nature, Beyond Nature, and To Nature

open access: yesAdvanced Science, 2020
The flourishing development of multifunctional flexible electronics cannot leave the beneficial role of nature, which provides continuous inspiration in their material, structural, and functional designs.
Panpan Wang   +7 more
doaj   +1 more source

Powder Processing Issues for High Quality Advanced Ceramics

open access: yesKONA Powder and Particle Journal, 2014
In this paper, the effect of powder processing conditions on the fracture strength of advanced ceramics is discussed. Manufacturing processes of silicon nitride ceramics and alumina ceramics are utilized to explain ...
Makio Naito   +4 more
doaj   +1 more source

The influence of the weld toe grinding and wig remelting weld toe rehabilitation techniques, on variable stresses, in case of cross fillet welds, reinforced with additional welding rows

open access: yesMATEC Web of Conferences, 2017
Variable stresses where the load value varies between a maximum and a minimum value, or varies the position in time, cause after accumulating a large number of load cycles in those structures, the emergence of drug fatigue.
Babis Claudiu   +4 more
doaj   +1 more source

Improving the quality of the mechanical systems by specific methods in connection with a commercial entity

open access: yesMATEC Web of Conferences, 2017
This paper aims is improving the quality of mechanical systems, using specific methods. In the first part of the paper, we will identify the causes of non-quality, using ISCHIKAWA diagram.
Babis Claudiu   +4 more
doaj   +1 more source

Braze Welding TIG of Titanium and Aluminium Alloy Type Al – Mg

open access: yesArchives of Metallurgy and Materials, 2016
The article presents the course and the results of technological tests related to TIG-based arc braze welding of titanium and AW-5754 (AlMg3) aluminium alloy. The tests involved the use of an aluminium filler metal (Al99.5) and two filler metals based on
Winiowski A., Majewski D.
doaj   +1 more source

Analytical modelling for prediction and prevention of overflow occurrence in wire-based additive manufacturing

open access: yesVirtual and Physical Prototyping
Increasing deposition rate is essential for higher productivity of additive manufacturing (AM). However, a high deposition rate usually requires high heat input to fully melt the fast-fed material, which could lead to defects due to molten material ...
Alireza M. Haghighi   +7 more
doaj   +1 more source

Physical simulation of structural transformations in the welded joint of high-carbon rail steel

open access: yesMaterials Research Express
This article presents the results of physical modelling of the heat treatment process and investigates the effect of its parameters on the welded joint metal of K76F rail steel.
Igor Krivtsun   +8 more
doaj   +1 more source

Knowledge-based bidirectional thermal variable modelling for directed energy deposition additive manufacturing

open access: yesVirtual and Physical Prototyping
Directed energy deposition additive manufacturing (DED-AM) has gained significant interest in producing large-scale metallic structural components. In this paper, a knowledge-based machine learning (ML) approach, combining both physics-based simulation ...
Jian Qin   +7 more
doaj   +1 more source

Extremely thin intermetallic layer in dissimilar AA6061-T6 and mild steel friction stir lap welding using a hemispherical tool

open access: yesScientific Reports
The dissimilar friction stir lap welding of AA6061-T6 and mild steel using the hemispherical tool tilted towards the retreating side is investigated. Critical defects such as hook features and internal voids are avoided by limiting the plunge depth in ...
Danilo Ambrosio   +3 more
doaj   +1 more source

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