scholarly journals Additive Manufacturing by laser-assisted drop deposition from a metal wire

2021 ◽  
pp. 109987
Author(s):  
Adrien Da Silva ◽  
Jan Frostevarg ◽  
Joerg Volpp ◽  
Alexander F.H. Kaplan
Keyword(s):  
Additive Manufacturing ◽  
Metal Wire

scholarly journals Effect of Filler Metal Type on Microstructure and Mechanical Properties of Fabricated NiAl Bronze Alloy Using Wire Arc Additive Manufacturing System

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 513
Author(s):  
Jae Won Kim ◽  
Jae-Deuk Kim ◽  
Jooyoung Cheon ◽  
Changwook Ji
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Additive Manufacturing ◽  
Filler Metal ◽  
Gas Metal Arc Welding ◽  
Metal Wire ◽  
Cold Metal Transfer ◽  
Metal Type ◽  
Cold Metal ◽  
Wire Arc Additive Manufacturing

This study observed the effect of filler metal type on mechanical properties of NAB (NiAl-bronze) material fabricated using wire arc additive manufacturing (WAAM) technology. The selection of filler metal type is must consider the field condition, mechanical properties required by customers, and economics. This study analyzed the bead shape for representative two kind of filler metal types use to maintenance and fabricated a two-dimensional bulk NAB material. The cold metal transfer (CMT) mode of gas metal arc welding (GMAW) was used. For a comparison of mechanical properties, the study obtained three specimens per welding direction from the fabricated bulk NAB material. In the tensile test, the NAB material deposited using filler metal wire A showed higher tensile strength and lower elongation (approx. +71 MPa yield strength, +107.1 MPa ultimate tensile strength, −12.4% elongation) than that deposited with filler metal wire B. The reason is that, a mixture of tangled fine α platelets and dense lamellar eutectoid α + κIII structure with β´ phases was observed in the wall made with filler metal wire A. On the other hand, the wall made with filler metal wire B was dominated by coarse α phases and lamellar eutectoid α + κIII structure in between.

Effect of reheating zones in additive manufacturing by means of electron beam metal wire deposition method

2020 ◽  
Vol 28 ◽  
pp. 68-75
Author(s):  
Daria A. Gaponova ◽  
Regina V. Rodyakina ◽  
Alexander V. Gudenko ◽  
Andrey P. Sliva ◽  
Alexey V. Shcherbakov
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Metal Wire ◽  
Deposition Method

scholarly journals Laser Metal Wire drop-by-drop Deposition: a material and dilution investigation

2021 ◽  
Vol 1135 (1) ◽  
pp. 012001
Author(s):  
Adrien Da Silva ◽  
Keivan Amiri Kasvayee ◽  
Jan Frostevarg ◽  
Jan Zachrisson ◽  
Alexander F.H. Kaplan
Keyword(s):  
Additive Manufacturing ◽  
Cross Sections ◽  
Material Properties ◽  
Material Characterization ◽  
Power Efficiency ◽  
Power Input ◽  
Metal Wire ◽  
Inconel 625 ◽  
Advantages And Disadvantages ◽  
Manufacturing Techniques

Abstract Additive Manufacturing has become a field of high interest in the industry, mostly due to its strong freedom of design and its flexibility. Numerous Additive Manufacturing techniques exist and present different advantages and disadvantages. The technique investigated in this research is a drop-by-drop deposition alternative to Laser Metal Wire Deposition. This technique is expected to induce a better control over the power input in the material, resulting in a better power efficiency and tailorable material properties. The aim of this research is to investigate selected material properties of the structures produced with the drop-by-drop deposition technique. Multi-drops structures were deposited from 316L, Inconel 625 (NW6625) and AlSi5 (AW4043) wires. Two drop deposition methods were investigated: (i) a contactless recoil pressure driven detachment for 316L and Inconel 625, (ii) a contact-based surface tension driven detachment for AlSi5. A material characterization including optical microscopy, EDS and hardness measurements was performed in transverse and longitudinal cross-sections. The microstructure of the deposited material, the dilution with the substrate and the heat affected zone were analysed. The contactless detachment showed a higher dilution than the contact-based technique due to the laser irradiating the substrate between two drop detachments, which melts the substrate that then mixes with the deposited drops.

Application of infrared thermography for laser metal-wire additive manufacturing in vacuum

2017 ◽  
Vol 81 ◽  
pp. 166-169 ◽  
Author(s):  
X.P. Ding ◽  
H.M. Li ◽  
J.Q. Zhu ◽  
G.Y. Wang ◽  
H.Z. Cao ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Infrared Thermography ◽  
Metal Wire

scholarly journals Manufacturing of a Bimetallic Structure of Stainless Steel and Mild Steel through Wire Arc Additive Manufacturing – A Critical Review

2020 ◽  
Vol 5 (6) ◽  
pp. 679-685
Author(s):  
Anirudhan B T ◽  
Jithin Devasia ◽  
Tejaswin Krishna ◽  
Mebin T Kuruvila
Keyword(s):  
Stainless Steel ◽  
Additive Manufacturing ◽  
Mild Steel ◽  
Arc Welding ◽  
Bulk Material ◽  
Arc Discharge ◽  
Metal Wire ◽  
Layer By Layer ◽  
Bead Width ◽  
Wire Arc Additive Manufacturing

Wire and Arc based Additive Manufacturing, shortly known as WAAM, is one of the most prominent tech- nologies, under Additive Manufacturing, used for extensive production of complex and intricate shapes. This layer by layer deposition method avails arc welding technology; Gas Metal Arc Welding (GMAW), a competitive method in WAAM, is the conducted manufacturing process. It is a sum of heat source, originated from the electric arc, and metal wire as feedstock. The metal wire from the feedstock, melted by arc discharge, is deposited layer by layer. Another material can be added on to the top of deposited layer by replacing the feed wire from the stock, to fabricate a bimetallic structure. The purpose of this study is to collect the salient datum from the joining of two dissimilar metals. A combination of stainless steel and mild steel are considered. Proper deposition parameters, welding current along with voltage, bead width efficiency for both the metals were acquired. As a result, the physical properties of the dissimilar joint were approximate to the bulk material.

Monitoring of laser metal-wire additive manufacturing temperature field using infrared thermography

2018 ◽  
Vol 47 (6) ◽  
pp. 604002 ◽  
Author(s):  
朱进前 Zhu Jinqian ◽  
凌泽民 Ling Zemin ◽  
杜发瑞 Du Farui ◽  
丁雪萍 Ding Xueping ◽  
李慧敏 Li Huimin
Keyword(s):  
Temperature Field ◽  
Additive Manufacturing ◽  
Infrared Thermography ◽  
Metal Wire
Sign in / Sign up

Export Citation Format

Share Document