Results 71 to 80 of about 125,390 (309)

Interface Behavior and Impact Properties of Dissimilar Al/Steel Keyhole-Free FSSW Joints

Metals, 2019
This work systematically investigates the interface behavior and impact properties of the keyhole-free friction stir spot welding (FSSW) of a dissimilar metal AA6082-T4 Al alloy and DP600 galvanized steel.
Zhongke Zhang, Yang Yu, Huaxia Zhao, Xijing Wang   +3 more
doaj   +1 more source

The repair of foundry defects in steel castings using welding technology [PDF]

, 2018
Use of welding technology for the repair of steel castings is particularly common in two areas. These include weld surfacing of protrusions that remained incomplete after casting, or filling the surface defects (cavities).
Gucwa, Marek, Hlavatý, Ivo, Koňár, Radoslav, Mičian, Miloš, Winczek, Jerzy   +4 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

Research on Influential Mechanism of HAZ Impact Toughness for Shipbuilding Steel with Mg Addition

Metals, 2018
The welding performance of shipbuilding steel under large heat input could be improved greatly by the addition of Mg to the steel, but the impact toughness of the heat affect zone (HAZ) is not stable.
Hui-rong Li, Li-gen Sun, Li-guang Zhu, Yun-song Liu, Yun-gang Li   +4 more
doaj   +1 more source

Process Control of 3D Welding as a Droplet-Based Rapid Prototyping Technique [PDF]

, 1998
Three-dimensional welding is investigated as a rapid prototyping technique for the production of real Inetallic parts using gas metal arc welding principles.
Beardsley, H., Kovacevic, R.
core   +1 more source

Cause of Impact Strength Decrease of Carbon Steel Welded by Friction Welding

Journal of the Japan Welding Society, 1966
In the other report, tensile, bending, fatigue, and impact strength are tested on S20C and S45C welded by friction welding, and the result is that, under the properly selected welding conditions, they were almost the same as those of base metal except impact strength. Only Charpy impact strength largely descreased.
Toshisuke Shioya, Senichi Yamada, Yutaka Tarutani   +2 more
openaire   +2 more sources

Low temperature impact toughness of structural steel welds with different welding processes

KSCE Journal of Civil Engineering, 2015
Influence of welding process and welding consumable on the impact toughness at low temperatures of the Heat Affected Zone (HAZ) and the weld metal in a structural steel weldment was investigated. A comparison of the low temperature impact toughness was made between the welded joints fabricated by Shielded Metal Arc Welding (SMAW) and Flux Cored Arc ...
Hyun-Seop Shin, Ki-Tae Park, Chin-Hyung Lee, Kyong-Ho Chang, Vuong Nguyen Van Do   +4 more
openaire   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source

Optimization of TIG welding process parameters using Taguchi technique for the joining of dissimilar metals of AA5083 and AA7075

Scientific Reports
This research paper aims to optimize the TIG welding parameters to join dissimilar metals of AA5083 and AA7075 using the Taguchi technique. The TIG welding current and root gap of butt geometry configuration are considered input parameters, and welding ...
Balram Yelamasetti, Manikyam Sandeep, Santhi Sree Narella, Vishnu Vardhan Tiruchanur, Tushar Sonar, Chander Prakash, Sagar Shelare, Nabisab Mujawar Mubarak, Sandeep Kumar   +8 more
doaj   +1 more source

IMPACT ON CONTRIBUTIONS FUMES FROM WELDING PROCEDURES WELDER HEALTH OPERATORS [PDF]

Fiabilitate şi Durabilitate, 2012
This paper presents a series of investigations undertaken to establish the impact of gas welding results in fusion welding procedures and welders health operators who work in departments making welded construction. Are the main gases that occur in fusion
Gheorghe AMZA, Zoia APOSTOLESCU, Liana Sanda PAISE, Maria Dragomir GROZA   +3 more
doaj