• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 626
  • 489
  • 176
  • 74
  • 52
  • 41
  • 35
  • 31
  • 23
  • 8
  • 7
  • 6
  • 5
  • 5
  • 5
  • Tagged with
  • 1873
  • 454
  • 378
  • 339
  • 326
  • 280
  • 239
  • 228
  • 185
  • 167
  • 152
  • 143
  • 138
  • 133
  • 127
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
111

A study to determine the material to be included in a reference book for welders and fabricators

Will, Jon. January 2003 (has links) (PDF)
Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 2003. / Includes bibliographical references.
112

Thermal field mapping technique for friction stir process

Kandaswaamy, Sakthivael. Payton, Lewis Nathaniel, January 2009 (has links)
Dissertation (Ph.D.)--Auburn University, 2009. / Abstract. Vita. Includes bibliographic references (p.107-111).
113

Experimental sensitivity analysis of welding parameters during transition from globular to spray metal transfer in gas metal arc welding /

Ludick, Mark. January 1900 (has links)
Thesis (MTech (Mechanical Engineering))--Peninsula Technikon, 2001. / Word processed copy. Summary in English. Includes bibliographical references (leaves 68-71). Also available online.
114

Damping in stiffener welded structures /

Ehnes, Charles W. January 2003 (has links) (PDF)
Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, June 2003. / Thesis advisor(s): Young S. Shin, Ilbae Ham. Includes bibliographical references (p. 49). Also available online.
115

An experimental measure of handedness laterality and its relation to training criteria for welders

Irwin, Daniel James 05 1900 (has links)
No description available.
116

Laser Welding of Nylon Tubes to Plates Using Conical Mirrors

Kritskiy, Anton 17 August 2009 (has links)
Laser transmission welding of polymers is a relatively new joining technique. It is based on the fact that the majority of thermoplastics are transparent to infrared radiation. A laser beam passes through the transparent part, and is then absorbed by a part rendered absorbent by additives such as carbon black. Absorbed laser energy is transformed into heat that melts the polymer at the interface between two parts, thus forming a weld. Many industrial applications have quite a complex geometry. This may often make it impossible to irradiate small elements of the joint interface directly. One of the possible solutions for this problem is to employ an oblique mirror to redirect a laser beam to the desired direction. In present work, transparent nylon tubes were welded to absorbing nylon plaques using a conical mirror inserted in the tube. The effects of the laser power, the angular motion speed, and the number of cycles on the joint shear strength were examined. Additionally, a two–dimensional axi-symmetric transient finite element heat transfer model was developed and evaluated. It simulated the temperature developed in the specimen during the welding cycle; the model was validated with the welding and mechanical testing results. The experimental results demonstrated good joint strength, confirming the feasibility of this technique. It was also found that welding at a lower laser beam power and a higher rotational speed allowed higher maximum weld strengths to be achieved at the expense of longer cycle time and higher energy consumption. Simulation of the temperature demonstrated that varying of the rotational speed at constant laser power does not change the overall temperature rise trend. / Thesis (Master, Mechanical and Materials Engineering) -- Queen's University, 2009-08-14 23:12:18.491
117

The effect of controlling welding procedure and peening on the physical properties and transition constituents of the materials

Harrelson, Ottis Miles 08 1900 (has links)
No description available.
118

Fusion characteristics in P-GMAW of mild steel

Quintino, L. January 1986 (has links)
No description available.
119

Automation of MIG (Metal Inert Gas) welding equipment using microprocessors

Byrne, N. J. January 1985 (has links)
No description available.
120

Vision based seam following systems for automated welding

Smith, Jeremy Simon January 1990 (has links)
No description available.

Page generated in 0.0688 seconds