Results 51 to 60 of about 90,830 (223)

THE EFFECT OF LEARNING DEMONSTRATION METHOD ON THE LEARNING ACHIEVEMENT IN SMAW PRACTICE AT SMK N SUKAMAJU [PDF]

open access: yes, 2011
The research purposes are : (1) to know the learning achievement of students in grade XI SMK N Sukamaju on manual arc welding subject of horizontal fillet positions which are taught with the demonstration method, (2) to know the learning achievement of ...
Suprihanto
core  

Hierarchical Reconfigurable Metasurface Based on Scenario‐Guided Functional Modules and Programmable Core

open access: yesAdvanced Science, EarlyView.
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu   +11 more
wiley   +1 more source

A novel inverter twin wires high effect submerged arc welding equipment for steel plate welding

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
Twin wires submerged arc welding technology is an efficient way for the high-speed welding of heavy workpiece of the low carbon steel. A novel inverter twin wires high effect submerged arc welding equipment is proposed by combination of the inverter ...
Kuanfang HE   +3 more
doaj   +1 more source

Study on the Molten Pool Fluid Behavior of PAW-Cable-Type Seven-Wire GMAW Hybrid Welding

open access: yesCrystals, 2022
Plasma arc welding (PAW)-cable-type seven-wire GMAW (gas metal arc welding) hybrid welding is known as a high-efficiency welding combining plasma arc, GMAW arc and cable-type welding wire. In this study, numerical simulation via Fluent of the molten pool
Chao Zhang, Qingxian Hu, Juan Pu, Hao Wu
doaj   +1 more source

A comparison between single sided friction stir welded and submerged arc welded DH36 steel thin plate [PDF]

open access: yes, 2012
The adoption of the friction stir welding (FSW) process into the shipbuilding industry is being considered as a medium term issue. Currently the data on friction stir welded mild steels tends to be fragmented, with critical areas being short on specific ...
Cater, Stephen R.   +3 more
core  

Analysis of fumes emitted during hard facing of FCAW wires [PDF]

open access: yes, 2017
Flux Cored Arc Welding (FCAW) wires are widely used for hard facing as they provide high deposition efficiency, wear resistance and faster speed rates than the solid wire used in Gas Metal Arc Welding process. Flux Cored Arc Welding process employs cored
G, V. P. (Venkatakrishnan)   +1 more
core   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

open access: yesAdvanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim   +5 more
wiley   +1 more source

Analysis of thermal stress and metal movement during welding [PDF]

open access: yes, 1972
Objectives of study were: investigation of temperature changes caused by welding arc with analysis of temperature distribution; development of system of mathematical statements describing thermal stresses and plastic strains during welding; and ...
Andrews, J. B., Masubuchi, K.
core   +1 more source

AI in chemical engineering: From promise to practice

open access: yesAIChE Journal, EarlyView.
Abstract Artificial intelligence (AI) in chemical engineering has moved from promise to practice: physics‐aware (gray‐box) models are gaining traction, reinforcement learning complements model predictive control (MPC), and generative AI powers documentation, digitization, and safety workflows.
Jia Wei Chew   +4 more
wiley   +1 more source

Fume emission during the arc and laser welding of cast stainless austenitic steel

open access: yesMetalurgija, 2023
The article presents results of research on fume emission in relation to various arc welding methods (MAG standard, CMT, ColdArc and ColdArc Puls) and laser welding techniques (heat conduction and deep penetration welding).
J. Matusiak, J. Wycislik- Sosnierz
doaj  

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