Paper Title:
Development of Freeform Fabrication of Metals by Three Diminsional Micro-Welding
  Abstract

A newly developed freeform fabrication process named 3D Micro-Welding, which is a combined system of a micro-TIG welding and a layered manufacturing method, is demonstrated. Various refractory alloys such as Inconel, stainless steel, and Invar can be freeformed besides elemental metals like titanium. Small metal beads of ~1mm in diameter are formed by emitting micro arc to the top of a thin metal wire of 0.2mm diameter. A fused bead is welded to a metal substrate or previously formed beads. By continuing this process and building up beads layer by layer under the control of CAD/CAM system, 3D objects were produced. In this study, optimization of micro-welding parameters such as the waveform of pulsed arc current and electrode materials were investigated and simple 3D objects of Inconel 600, SUS 304, Invar 42 were formed. The interfaces between adjacent beads were joined well and no crack or pore existed in the formed objects. The density and Vickers hardness of Inconel 600 objects showed comparable values to the commercial Inconel alloy, however the yield strength and Young’s modulus was about 80% and 70% of that alloy, respectively.

  Info
Periodical
Solid State Phenomena (Volume 127)
Edited by
Masaaki Naka
Pages
189-194
DOI
10.4028/www.scientific.net/SSP.127.189
Citation
T. Horii, M. Ishikawa, S. Kirihara, Y. Miyamoto, N. Yamanaka, "Development of Freeform Fabrication of Metals by Three Diminsional Micro-Welding", Solid State Phenomena, Vol. 127, pp. 189-194, 2007
Online since
September 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kiyotaka Matsuura, Hiroshi Arita, Tatsuya Ohmi, Masayuki Kudoh, Yoshinari Miyamoto
Abstract:When a surface of a titanium disk was melted in an atmosphere of pure nitrogen using a 3D Micro Welder which was designed by the present...
225
Authors: Si Bo Yan, Yong Lun Song, Jun Zhang, Li Lai Bai
Abstract:The plate butt welding tests have been carried out to the 2219 high-strength aluminum alloy material by utilizing the self-development...
27
Authors: Yuriy Nikolaevich Kulchin, Nikolay Gennadievich Galkin, Evgenii P. Subbotin, Vasiliy M. Dolgorook, Dmitrii S. Yatsko
Chapter 2: Functional Materials and Coatings, Nanocomposites, Nonlinear Optical Mediums
Abstract:The article discusses the formation of coatings with magnetic properties on non-magnetic substrates by the method of additive technology of...
230