کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7176502 | 1466712 | 2018 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Monitoring weld pool oscillation using reflected laser pattern in gas tungsten arc welding
ترجمه فارسی عنوان
نظارت بر نوسان جوشکاری با استفاده از الگوی لیزر منعکس در جوشکاری قوس تنگستن گاز
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
چکیده انگلیسی
A single laser vision method was proposed to carry out real-time sensing of the oscillation signal from the reflected laser pattern. A robust algorithm based on the image centroid of reflected laser pattern was developed to extract the oscillation frequency of weld pool and fluctuation amplitude of centroids of laser patternÎHcen. The correlation between fluctuation amplitude of centroids of laser patternÎHcen and oscillation amplitude of weld pool surface Îhact were simulated based on the law of reflection. Several experiments were conducted in stationary and traveling welding processes with different penetration status. The oscillation frequency and ÎHcen were extracted. An abrupt transition mode of oscillation frequency and Îhact exists from partial to full penetration status in stationary welding process. By contrast, an abrupt transition occurs in Îhact in the case of traveling welding process. Two transition modes of oscillation frequency, continuous and abrupt change mode, occurred with different welding speeds, which correlated with the oscillation behavior of weld pool surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 255, May 2018, Pages 876-885
Journal: Journal of Materials Processing Technology - Volume 255, May 2018, Pages 876-885
نویسندگان
Chunkai Li, Yu Shi, YuFen Gu, Peng Yuan,