The Journal in 2012
نویسندگان
چکیده
منابع مشابه
Welding Journal - October 2012
There are a wide range of important applications for metal tube materials in various fields. The production process of high-frequency longitudinally welded pipe includes first using a roller to coil the long steel strips of a certain size into a cylinder shape, and then join them by heating the steel materials at the welding edge with a high-frequency welding machine — Fig. 1. The processes inc...
متن کاملWelding Journal - July 2012
A skilled welder determines the weld joint penetration from his/her observation of the weld pool surface during the welding process. This paper addresses the characterization of the 3D weld pool surface in gas tungsten arc welding (GTAW), i.e., extracting a set of characteristic parameters from the 3D weld pool surface to determine the backside bead width that measures the degree of weld joint ...
متن کاملWelding Journal - May 2012
A durability assessment of a weld joint needs the knowledge of residual stresses and distortion (Ref. 1). Thermal cycle history during welding is a necessary input for simulation of residual stresses. Many investigators have studied heat flow during arc welding analytically, numerically, and experimentally (Refs. 2–6). Analytical methods developed are capable of computing temperature distributi...
متن کاملWelding Journal - January 2012
For more than 30 years, body-in-white development has been dominated by the need to achieve weight reduction while improving crash worthiness (Refs. 1, 2). Weight reduction is considered a primary key to improvements in fuel economy. One area of considerable development has been through materials substitution. Thirty years ago, automotive structural elements were made almost exclusively from re...
متن کاملWelding Journal - May 2012
Laser-enhanced gas metal arc welding (GMAW) is an innovative process recently proposed and developed at the University of Kentucky (Refs. 1–3), shown in Fig. 1. It adds a relatively low-power laser to conventional GMAW, and the objective is to provide an auxiliary force to help detach the droplet at a desired diameter with a desired welding current. In laserenhanced GMAW, the droplet size is a ...
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ژورنال
عنوان ژورنال: Internal Medicine Journal
سال: 2013
ISSN: 1444-0903
DOI: 10.1111/imj.12045