Mechanical Properties And Microstructure Evolution in Arc Stud Welding Joints of AISI 1020 with AISI 316L and AISI 304

Abass, Mohammed H.; Abood, Adnan N.; Alali, Muhaed; Hussein, Sabah Kh.; Nawi, Sami A.

doi:10.1007/s13632-021-00744-8

Cited by 16 publications

(5 citation statements)

References 25 publications

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“…The results of testing the strength of welded joints are given in Table 3 [14]. The duration of the arc burning depends on the vapor pressure of the molten metal, as well as on the tension of the spring mechanism.…”

Section: Resultsmentioning

confidence: 99%

Development of a science-based technology for the manufacture of sheet panels with fasteners

Nescoromniy

2023

E3S Web of Conf.

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An analysis was made of the application of Stud Welding hardware welding technologies depending on the welded structures used, the duration of the process, the shape of the stud butt and the consumables used. The use of CD Stud Welding technology for welding metalware to thin-sheet panels is substantiated. The essence of the process of formation of a welded joint is described, which consists in the explosive evaporation of a protrusion at the end of a hardware during the discharge of capacitor banks, the excitation and burning of an electric arc in the metal vapors of the parts to be welded, their convergence when the spring mechanism overcomes the pressure of metal vapors, the immersion of the hardware into the weld pool of the part with subsequent crystallization molten metal in the liquid phase. The spring mechanism was calibrated using a compression dynamometer. The flowing pulsed current was registered depending on the input energy of the discharge of capacitor banks. The main parameters of the capacitor welding mode are determined and the dependences on the input energy and preliminary static pressure are established. The indicator of mechanical tests was taken as a quality parameter - the pull-off force. The effect of metal vapor pressure, which counteracts the convergence of welded parts, is revealed. Dependences of opposing pressures to the convergence of welded parts are constructed.

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Section: Resultsmentioning

confidence: 99%

Development of a science-based technology for the manufacture of sheet panels with fasteners

Nescoromniy

2023

E3S Web of Conf.

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“…Grinding was conducted on the mounted specimens starting with sandpaper (400, 600, 800, 1000, 1200, 2000, and 2500) and then polishing by fine cloth with the diamond paste of 3 𝜇) and Al2O3 solution, then rinsed in water. The samples were then etched by immersing in a solution of Nital for 15 s, which consists of (2% mL HNO3 and 98% mL Ethanol) for the carbon steel (Abass et al, 2021). An optical microscope and secondary electron microscope (SEM) were used to investigate the microstructure.…”

Section: Methodsmentioning

confidence: 99%

Resistance Spot Welding of Dissimilar Metals Aisi 1006 Low Carbon Steel and Aa6061 Aluminum Alloy Using Zinc and Tin Coating

Akkar,

Alali

2023

KJE

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In this research, low carbon steel (AISI 1006) and aluminum (AA6061) were joined by resistance spot welding. Different types of coating for the base metals were used to examine their influence on the properties of the welded joint. A tensile shear test for the welded joints was performed to determine the best welding conditions. low welding current produced an interfacial failure mode, and the failure mode changed from interfacial to partial pullout and full pullout failure modes with increasing welding current. For the as-welded joints, the best welding condition was 6 kA, 0.6 s, and the joint recorded a shear force of 2.7 kN. The shear force increased to 4.24 kN for the tin-coated steel / zinc-coated aluminum joint. The microstructure examination showed the welding made through a brazing mechanism. However, the existence of the Fe-Al intermetallic compound (IMC) caused a cracking at the joint interface. The microhardness of the joint was affected by the heat of welding and varied across the joint. An increase in the microhardness of aluminum in the weld nugget occurred because of the IMC.

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“…The grinding was conducted on the mounted specimens starting with sandpaper (400, 600, 800, 1000, 1200, 2000, and 2500) and then polished by fine cloth with the diamond paste of (3 μ) and Al2O3 solution. The specimens were then etched by immersing them in a solution of Nital, which consists of (2% mL HNO3 and 98% mL Ethanol) for the carbon steel [10]. Etching did not conduct on aluminum alloy because the aluminum at the nugget area includes porosities that make the microstructure difficult to characterize.…”

Section: Coating Procedurementioning

confidence: 99%

لحام المعادن المتباينة عن طريق اللحام النقطي بالمقاومة لسبائك الألومنيوم 6061 / الفولاذ Aisi 1006 باستخدام طلاء الزنك والقصدير

Al-kinani,

Alali

2023

Journal of Petroleum Research and Studies

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أجريت هذه الدراسة لمعرفة تأثير متغيرات اللحام ونوع الطلاء على قابلية اللحام بين سبيكة الألومنيوم 6061 و الفولاذ AISI 1006 باستخدام تقنية لحام المقاومة النقطي. تضمنت الفحوصات المختبرية المستخدمة لتقييم خصائص الوصلات الملحومة اختبار قص الشد، واختبار الصلادة الدقيقة، وفحص البنية المجهرية، وتحليل مطيافية تشتت الطاقة بالأشعة السينية، واختبار مقاومة التآكل. تم استخدام طلاء القصدير و الزنك لتحسين قابلية اللحام للمفصل. نتيجة لذلك، وجد أن أقصى قوة قص للمفصل الملحوم بدون طلاء تبلغ 2.7 كيلو نيوتن وتزداد إلى 4.24 كيلو نيوتن باستخدام الطلاءات. لوصف خصائص البنية المجهرية، لوحظ وجود لحام شبيه بلحام المونة في منطقة الربط التي تتكون من الألومنيوم المصهور المتصلب داخل منطقة اللحام المرتبطة بالمنطقة المتأثرة بالحرارة للفولاذ، تم الكشف عن المركبات البينية المعدنية من الفولاذ والالمنيوم في سطح المفصل عن طريق تحليل EDS مما تسبب في حدوث تشققات صغيرة في سطح المفصل. علاوة على ذلك، اختلفت صلادة فيكرز المايكروية عبر مفصل اللحام بسبب تأثير حرارة اللحام والضغط على المعادن الأساسية. تم تسجيل أقصى قيمة للصلادة في المنطقة التأثر الحراري الميكانيكي على جانب الفولاذ وتتكون منطقة اللحام من الألمنيوم مع صلادة محسنة بسبب تأثير المركبات البينية المعدنية. فيما يتعلق بمقاومة التآكل ، تم الكشف عن أنه مع زيادة تيار اللحام، يزداد معدل التآكل بسبب ارتفاع حجم المنطقة المتأثرة بالحرارة ومنطقة اللحام.

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Mechanical Properties And Microstructure Evolution in Arc Stud Welding Joints of AISI 1020 with AISI 316L and AISI 304

Cited by 16 publications

References 25 publications

Development of a science-based technology for the manufacture of sheet panels with fasteners

Development of a science-based technology for the manufacture of sheet panels with fasteners

Resistance Spot Welding of Dissimilar Metals Aisi 1006 Low Carbon Steel and Aa6061 Aluminum Alloy Using Zinc and Tin Coating

لحام المعادن المتباينة عن طريق اللحام النقطي بالمقاومة لسبائك الألومنيوم 6061 / الفولاذ Aisi 1006 باستخدام طلاء الزنك والقصدير

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