کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
814576 906256 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of Cold Metal Transfer Process and Its Heat Input on Weld Bead Geometry and Porosity of Aluminum-Copper Alloy Welds
ترجمه فارسی عنوان
تأثیر فرآیند انتقال فلز سرد و ورودی گرمائی آن بر هندسه هندسی جوش و ضخامت جوشکاری آلومینیوم آلیاژ مس
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک مواد
چکیده انگلیسی

The weld bead geometry and the porosity of AA2219-T851 high strength aluminum alloy welds with ER2319 wire produced by different cold metal transfer (CMT) processes and heat inputs were investigated. The results show that a narrow finger-shaped geometry is observed using the conventional CMT process and a large number of gas pores exist in the lower and upper parts of welds. Compared to results of above mentioned CMT process, the weld melting area is increased using CMT-pulse (CMT-P) process, and it is beneficial to reduce the porosity effectively with an appropriate heat input. The finger-shaped geometry with lower melting depth using CMT-advanced (CMT-ADV) process and the spherical-shaped bead geometry with lower dilution using CMT-pulse advanced (CMT-PADV) process are achieved. The gas pore is reduced predominantly and even eliminated due to the lower heat input and the effective oxide cleanliness of wire ends for the two processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 45, Issue 3, March 2016, Pages 606–611
نویسندگان
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