کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
245506 1428221 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Potentials of in situ monitoring of aluminum alloy forging by acoustic emission
ترجمه فارسی عنوان
پتانسیل های نظارت در محل آلیاژ آلومینیوم فورج شده توسط انتشار آکوستیک
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی

Deviations during forging processes lead to workpiece failure when the forming limits of the material are exceeded. In production processes an early detection of manufacturing faults is preferred. The acoustic emission (AE) technique is examined with respect to its ability to detect deviations in lubrication conditions and in the structural integrity of different aluminum part geometries and alloys during forming. In a first step, an upsetting of varying specimen shapes was performed in order to study correlations of occurring defects as well as changing friction conditions with acoustic emission response. Afterwards, a cross joint was forged and AE was analyzed. The results suggest that crack detection during forging is feasible but limited by material ductility. In addition, it is shown that the characteristics of the acoustic emission during forming strongly depend on the respective alloy. With respect to faultless warm forging it is found that different stages are reflected in the AE signal, facilitating the detection of process deviations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Archives of Civil and Mechanical Engineering - Volume 16, Issue 4, September 2016, Pages 724–733
نویسندگان
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