Results 61 to 70 of about 240,163 (350)

Comparison of Welding Results Using Oxy Acetylene Welding (OAW) and Gas Metal Arc Welding (GMAW) on Brass Leaf Propeller Repair [PDF]

open access: yes
Propeller is one of the means of producing thrust to propel ships. In sailing in sea or river waters, ship propellers often hit foreign objects floating or floating in the waters which cause damage to the propeller in the form of bent, cracked or broken ...
Dwisetiono, Mochamad Yusuf Afandi
core   +2 more sources

Combined numerical and experimental estimation of the fracture toughness and failure analysis of single lap shear test for dissimilar welds [PDF]

open access: yes, 2021
The single lap shear test is widely used to measure the strength of dissimilar welds even though such a test brings limited understanding of the intrinsic weld toughness. The present study proposes a numerical finite element (FE) analysis and experimental characterization of dissimilar joints presenting various microstructures (thickness of the ...
arxiv   +1 more source

A computational fluid dynamic analysis of the effect of weld nozzle geometry changes on shielding gas coverage during gas metal arc welding [PDF]

open access: yes, 2013
Three geometry changes to the inner bore of a welding nozzle and their effects on weld quality during gas metal arc welding (GMAW) were investigated through the use of computational fluid dynamic (CFD) models and experimental trials. It was shown that an
Campbell, Stuart   +3 more
core   +1 more source

Welding high-strength aluminum alloys [PDF]

open access: yes, 1974
Handbook has been published which integrates results of 19 research programs involving welding of high-strength aluminum alloys. Book introduces metallurgy and properties of aluminum alloys by discussing commercial alloys and heat treatments.
Hasemeyer, E. A.   +3 more
core   +1 more source

Microstructure, Mechanical Properties, and Antibacterial Performance of Novel Fe‐Mn‐Zn Nanocrystalline Alloys Produced by Mechanical Alloying

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the development of Fe‐Mn‐Zn nanocrystalline alloys (0–9 wt% Zn) by mechanical alloying and subsequently hot pressing. Their microstructure, density, hardness, wear resistance, corrosion behavior, and antibacterial properties are systematically examined.
Ilker Emin Dag   +3 more
wiley   +1 more source

Mechanical Properties Testing of P92 Welded Joints Prepared by Manual Metal Arc Welding

open access: yesTehnički Vjesnik, 2018
This article deals with the new results from measurement of mechanical properties of P92 welded joints. Tested welded joints of P92 steel were prepared using Gas Tungsten Arc Welding (GTAW) for root layer in combination with Manual Metal Arc Welding ...
Petr Mohyla   +2 more
doaj   +1 more source

Arc pressure and weld metal fluid flow whilst using alternating shielding gases Part 1 : arc pressure measurement [PDF]

open access: yes, 2013
As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on gas shielded welding processes, a comparison between the arc pressures generated using argon, helium, alternating shielding gases and pulsed GTAW has ...
Campbell, Stuart   +2 more
core   +1 more source

Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers

open access: yesAdvanced Science, EarlyView.
Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Min Pan   +6 more
wiley   +1 more source

Comparative study of electrogas and shielded metal arc welding processes on steel A537 welded joints

open access: yesMaterials Research Express
In this research, the electro-gas welding process was compared with a shielded metal arc welding process for welding steel A573 from a mechanical properties point of view.
Mahmoud Abbas   +3 more
doaj   +1 more source

Welding of Large Thickness Super Duplex Stainless Steel: Microstructure and Properties

open access: yesMetals, 2021
In this study, Submerged Arc Welding (SAW) and Gas Metal Arc Welding (GMAW) processes were used in multi-pass welding of 33 mm thickness super duplex stainless steel plates.
Maria Asuncion Valiente Bermejo   +3 more
doaj   +1 more source

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