A contribution to the study of the cold wire TIG process in the flat, horizontal and overhead position with new torch designs and wire feed methodologies

2017 ◽  
Vol 31 (6) ◽  
pp. 415-424
Author(s):  
Victor Vergara Díaz ◽  
John Michea Cortes ◽  
Abdón Espinosa Alvarez
Keyword(s):  
Cold Wire ◽  
Wire Feed

GTAW COLD WIRE FEED: TRANSITIONAL TRANSFER MODE CHARACTERIZATION

2021 ◽  
Author(s):  
Anna Louise Voigt ◽  
Tiago Vieira da Cunha ◽  
Carlos Enrique Niño
Keyword(s):  
Transfer Mode ◽  
Cold Wire ◽  
Wire Feed

Minimization of defects in nickel-based superalloy weld overlay deposited by the GTAW cold wire feed process

2016 ◽  
Vol 30 (6) ◽  
pp. 443-451 ◽  
Author(s):  
Cleiton Carvalho Silva ◽  
Edvan Cordeiro de Miranda ◽  
Marcelo Ferreira Motta ◽  
Hélio Cordeiro de Miranda ◽  
Jesualdo Pereira Farias
Keyword(s):  
Weld Overlay ◽  
Nickel Based Superalloy ◽  
Cold Wire ◽  
Wire Feed

Evaluation of the Corrosion Resistant Weld Cladding Deposited by the TIG Cold Wire Feed Process

2014 ◽  
Vol 783-786 ◽  
pp. 2822-2827 ◽  
Author(s):  
Cleiton Carvalho Silva ◽  
Conrado Ramos Moreira Afonso ◽  
Antonio Jose Ramirez ◽  
Marcelo Ferreira Motta ◽  
Hélio Cordeiro de Miranda ◽  
...  
Keyword(s):  
Welding Process ◽  
Single Layer ◽  
High Hardness ◽  
Immersion Test ◽  
Inconel 625 ◽  
Dissimilar Welding ◽  
Alloy 625 ◽  
Cold Wire ◽  
Weld Cladding ◽  
Wire Feed

The aim of this study is to evaluate the microstructure and properties, resulting from the dissimilar welding of Ni-based alloys like Hastelloy C276 and Inconel 625 with ASTM A516 Gr 60 steel, through the deposition of overlays by the TIG welding process with cold wire feed. The results showed that it is feasible to produce coatings with low dilution levels in a single layer. Regarding the microstructure, there was a strong segregation of alloying elements during solidification. The phenomenon of microsegregation is directly or indirectly associated with the mechanism of corrosion attack. The shear resistance tests showed that coalescence between coating and substrate, provided a high shear strength, even with the possible presence of defects and high hardness martensitic zones. The immersion test in FeCl3 showed that the alloy 625 had lower CPT when compared to alloy C276. However, in the CPT temperature for the alloy C276, the intensity of the attack for the alloy 625 was lower than the alloy C276.

Effect of dilution on the microstructure of AWS ERNiCrMo-14 alloy in overlay welding by the TIG process with cold wire feed

2017 ◽  
Vol 32 (2) ◽  
pp. 130-138 ◽  
Author(s):  
Emerson Mendonça Miná ◽  
Yuri Cruz da Silva ◽  
Jean Dille ◽  
Cleiton Carvalho Silva
Keyword(s):  
Cold Wire ◽  
Overlay Welding ◽  
Wire Feed

A Procedure for Determining the Operating Modes of Electron Beam Wire Feed Layer-Wise Deposition for Additive Manufacturing

Vestnik MEI ◽  
2017 ◽  
pp. 8-14 ◽  
Author(s):  
Aleksandr V. Gudenko ◽  
◽  
Viktor К. Dragunov ◽  
Andrey Р. Sliva ◽  
◽  
...  
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Operating Modes ◽  
Wire Feed

Characterization of AA7075/AA5356 gradient transition zone in an electron beam wire-feed additive manufactured sample

2021 ◽  
Vol 172 ◽  
pp. 110867
Author(s):  
V. Utyaganova ◽  
A. Filippov ◽  
S. Tarasov ◽  
N. Shamarin ◽  
D. Gurianov ◽  
...  
Keyword(s):  
Electron Beam ◽  
Transition Zone ◽  
Feed Additive ◽  
Wire Feed

A novel Ti cored wire developed for wire-feed arc deposition of TiB/Ti composite coating

2021 ◽  
Vol 83 ◽  
pp. 145-160
Author(s):  
Yang Bao ◽  
Lujun Huang ◽  
Shan Jiang ◽  
Rui Zhang ◽  
Qi An ◽  
...  
Keyword(s):  
Composite Coating ◽  
Cored Wire ◽  
Arc Deposition ◽  
Wire Feed

scholarly journals Low-Roughness-Surface Additive Manufacturing of Metal-Wire Feeding with Small Power

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4265
Author(s):  
Bobo Li ◽  
Bowen Wang ◽  
Greg Zhu ◽  
Lijuan Zhang ◽  
Bingheng Lu
Keyword(s):  
Additive Manufacturing ◽  
High Surface ◽  
Deposition Process ◽  
High Energy ◽  
Width Ratio ◽  
Thin Wall ◽  
Small Power ◽  
High Surface Quality ◽  
Wall Structures ◽  
Wire Feed

Aiming at handling the contradiction between power constraint of on-orbit manufacturing and the high energy input requirement of metal additive manufacturing (AM), this paper presents an AM process based on small-power metal fine wire feed, which produces thin-wall structures of height-to-width ratio up to 40 with core-forming power only about 50 W. In this process, thermal resistance was introduced to optimize the gradient parameters which greatly reduces the step effect of the typical AM process, succeeded in the surface roughness (Ra) less than 5 μm, comparable with that obtained by selective laser melting (SLM). After a 10 min electrolyte-plasma process, the roughness of the fabricated specimen was further reduced to 0.4 μm, without defects such as pores and cracks observed. The ultimate tensile strength of the specimens measured about 500 MPa, the relative density was 99.37, and the Vickers hardness was homogeneous. The results show that the proposed laser-Joule wire feed-direct metal deposition process (LJWF-DMD) is a very attractive solution for metal AM of high surface quality parts, particularly suitable for rapid prototyping for on-orbit AM in space.

Sign in / Sign up

Export Citation Format

Share Document