Cast weld and surface contact bonds
نویسندگان
چکیده
منابع مشابه
Robust Sensing and Control of Weld Pool Surface
Gas tungsten arc welding is the primary process for precision joining of metals. To develop a simple yet durable sensing and control system for this process, a novel sensor which requires no additional attachment is proposed to sense the depth of the weld pool surface using a non-transferred arc. To assure its effectiveness and accuracy, a flat surface is periodically established to provide a r...
متن کاملRobust sensing and control of the weld pool surface
Gas tungsten arc welding is the primary process for precision joining. To develop a control system for this process, a novel sensor is proposed to measure the depth of the weld pool surface using a non-transferred arc. A flat surface is periodically established to provide a real-time reference. The main-arc-on period is selected as the system’s input. Because of possible large variations/ranges...
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The causes of liquation cracking in the heat-affected zone (HAZ) of a cast Mar-M004 superalloy weld were investigated. X-ray diffraction (XRD), electron probe microanalyzer (EPMA), and electron backscatter diffraction (EBSD) were applied to identify the final microconstituents at the solidification boundaries of the cast alloy. Fine borides and lamellar eutectics were present in front of some γ...
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OBJECTIVE To determine the outcome of diabetic neuropathic foot ulcers treated with Total Contact Cast (TCC) in terms of percentage of ulcers healed and time to heal. STUDY DESIGN Analytical study. PLACE AND DURATION OF STUDY Department of Orthopaedic Surgery, Abbasi Shaheed Hospital, Karachi Medical and Dental College, from April 2005 to March 2007. METHODOLOGY The study included diabeti...
متن کاملObservation of a dynamic specular weld pool surface
Observation and measurement of a weld pool surface is a key towards the development of next generation intelligent welding machines which can mimic a skilled human welder to a certain extent. However, the bright arc radiation and the specular surface complicate the observation and measurement task. This paper proposes a novel method to turn the difficulty of the specular surface into an advanta...
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ژورنال
عنوان ژورنال: Journal of the Franklin Institute
سال: 1900
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(00)90019-x