پیوندهای مفید
آمار
| تعداد نشریات | 8 |
| تعداد شماره‌ها | 427 |
| تعداد مقالات | 5,558 |
| تعداد مشاهده مقاله | 6,713,999 |
| تعداد دریافت فایل اصل مقاله | 5,671,310 |
بررسی اثر نانو ذرات سیلیکون کارباید بر استحکام برشی جوش در جوشکاری اصطکاکی اغتشاشی آلومینیوم 7075 | ||
| نشریه مهندسی مکانیک امیرکبیر | ||
| دوره 56، شماره 1، 1403، صفحه 31-56 اصل مقاله (1.55 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/mej.2024.22620.7651 | ||
| نویسندگان | ||
| حجت ثمری خلج1؛ علی نیک بخت* 2؛ مجتبی صدیقی1 | ||
| 1دانشکده مهندسی مکانیک، دانشگاه صنعتی امیرکبیر، تهران، ایران | ||
| 2استادیار، پژوهشکده فناوری‌های نو، دانشگاه صنعتی امیرکبیر، تهران، ایران. | ||
| چکیده | ||
| در این مقاله به بررسی عددی و تجربی بیشینه استحکام برشی اتصال در جوشکاری اصطکاکی اغتشاشی آلومینیوم 7075 در حالت لبه روی هم در حضور نانو ذرات سیلیکون کارباید در ناحیه اتصال پرداخته شده و نتایج با جوشکاری بدون حضور نانو ذرات مقایسه شده است. بدین منظور پارامترهای تاثیرگذار در استحکام برشی اتصال شامل سرعت خطی و دورانی ابزار، شکل پین ابزار (مربعی و رزوه مخروطی)، عمق فرورفتگی و زاویه انحراف ابزار مطالعه شده‌‌اند. آزمایشات تجربی با استفاده از علم آمار استنباطی به روش تاگوچی طراحی و یک مدل المان محدود سه بعدی نیز با بکارگیری دو نرم افزار دفرم و آباکوس به صورت متوالی توسعه داده شده که نتایج حاصل از آن با آزمایش‌های تجربی اعتبارسنجی شده است. اعتبارسنجی مدل عددی نشان می‌دهد که نتایج مدل عددی دارای تطابق مناسبی برای تخمین و پیش‌بینی رفتار فرآیند مذکور می‌باشد. بررسی نتایج نشان می‌دهد که حضور نانو ذرات باعث افزایش استحکام برشی اتصال جوشکاری شده حداکثر تا 24 درصد نسبت به جوشکاری بدون این ذرات می‌شود. استفاده از ابزار با پین رزوه مخروطی باعث افزایش استحکام 4 الی 5 درصدی در عدم حضور ذرات تقویت‌کننده و 4 الی 7/5 درصدی در حضور نانوذرات نسبت به ابزار با پین مربعی شده است. موثرترین پارامتر بر استحکام برشی قطعه جوشکاری شده، سرعت دورانی ابزار می‌باشد. همچنین زاویه انحراف ابزار تاثیر اندکی بر استحکام قطعه دارد. | ||
| کلیدواژه‌ها | ||
| جوشکاری اصطکاکی اغتشاشی؛ آلومینیوم 7075؛ شبیه‌سازی المان محدود؛ نانو ذرات سیلیکون کارباید؛ روش تاگوچی | ||
| عنوان مقاله [English] | ||
| Investigating the Effect of SiC Nanoparticles on the Shear Strength of Friction Stir Lap Welded 7075 Aluminum Alloy | ||
| نویسندگان [English] | ||
| Hojjat Samarikhalaj1؛ Ali Nikbakht2؛ Mojtaba Sadighi1 | ||
| 1Mechanical Engineering Department, Amirkabir University of Technology, Tehran, Iran | ||
| 2دانشگاه صنعتی امیرکبیر | ||
| چکیده [English] | ||
| In this paper, the effect of including Silicon Carbide nanoparticles in the weld zone on the maximum shear strength of friction stir lap welded 7075 aluminum alloy is investigated, both experimentally and numerically. This objective is carried out by studying the effects of rotational and transverse speeds, tilt angle, the shape of the tool, and the penetration depth. The numerical investigation is based on developing an FE model by means of Deform and ABAQUS to simulate the welding procedure, which results are verified by the experimental findings. The experimental procedure is designed based on the Taguchi method. The verification of the developed FE model shows that the simulation results are in proper agreement with the experimental findings. In general, including Silicon Carbide nanoparticles in the weld zone can increase the maximum shear strength up to 24%, compared to the case where the specimens are welded without Silicon Carbide. Furthermore, applying the threaded tapered tool leads to higher shear strength in comparison with the squared shape tool, i.e., the strength of the specimens welded by the threaded tapered tool is 4 to 5% higher without Silicon Carbide inclusion and 4 to 7.5% higher with Silicon Carbide, compared to the same case welded by the squared tool. In addition, while the rotational speed has the highest influence on the findings, the tilt angle does not affect the results that much. | ||
| کلیدواژه‌ها [English] | ||
| Friction Stir Welding, 7075 Aluminum Alloy, Finite Element Modeling, Silicon Carbide Nanoparticles, Taguchi Method | ||
| مراجع | ||
|
[1] W. Thomas, E. Nicholas, J. Needham, M. Murch, P. Templesmith, C. Dawes, GB Patent application no. 9125978.8, International patent application no. PCT/GB92/02203, (1991). [2] C. Dawes, Friction Stir Joining of Aluminium Alloy, Welding Jounal, 36 (1995) 41-45. [3] R.S. Mishra, Z. Ma, Friction stir welding and processing, Materials science and engineering: R: reports, 50(1-2) (2005) 1-78. [4] C. Rhodes, M. Mahoney, W. Bingel, R. Spurling, C. Bampton, Effects of friction stir welding on microstructure of 7075 aluminum, Scripta materialia, 36(1) (1997) 69-75. [5] G. Liu, L. Murr, C. Niou, J. McClure, F. Vega, Microstructural aspects of the friction-stir welding of 6061-T6 aluminum, Scripta materialia, 37(3) (1997) 355-361. [6] S. Benavides, Y. Li, L. Murr, D. Brown, J. McClure, Low-temperature friction-stir welding of 2024 aluminum, Scripta materialia, 41(8) (1999) 809-815. [7] K. Jata, S.L. Semiatin, Continuous dynamic recrystallization during friction stir welding of high strength aluminum alloys, Scripta materialia, 43(8) (2000) 743-749. [8] G. Buffa, A. Ducato, L. Fratini, Numerical procedure for residual stresses prediction in friction stir welding, Finite elements in analysis and design, 47(4) (2011) 470-476. [9] M. Song, R. Kovacevic, Thermal modeling of friction stir welding in a moving coordinate system and its validation, International Journal of machine tools and manufacture, 43(6) (2003) 605-615. [10] Y.J. Chao, X. Qi, W. Tang, Heat transfer in friction stir welding—experimental and numerical studies, J. Manuf. Sci. Eng., 125(1) (2003) 138-145. [11] S. Mandal, J. Rice, A. Elmustafa, Experimental and numerical investigation of the plunge stage in friction stir welding, Journal of materials processing technology, 203(1-3) (2008) 411-419. [12] G. Buffa, L. Fratini, S. Pasta, Residual stresses in friction stir welding: numerical simulation and experimental verification, Powder Diffraction, 23(2) (2008) 182-182. [13] G. Buffa, G. Campanile, L. Fratini, A. Prisco, Friction stir welding of lap joints: Influence of process parameters on the metallurgical and mechanical properties, Materials Science and Engineering: A, 519(1-2) (2009) 19-26. [14] S. Sadeghi, M.A. Najafabadi, Y. Javadi, M. Mohammadisefat, Using ultrasonic waves and finite element method to evaluate through-thickness residual stresses distribution in the friction stir welding of aluminum plates, Materials & Design (1980-2015), 52 (2013) 870-880. [15] G. Buffa, L. Fratini, M. Schneider, M. Merklein, Micro and macro mechanical characterization of friction stir welded Ti–6Al–4V lap joints through experiments and numerical simulation, Journal of Materials Processing Technology, 213(12) (2013) 2312-2322. [16] B. Sadeghian, M. Ataapour, A. Taherizadeh, Thermal Simulation of Friction Stir Welding in 304 Stainless Steel to 5083 Aluminum Dissimilar Joint, Journal of Computational Methods in Engineering, 36(2) (2022) 101-117 (In Persian). [17] B. Mohammadi Landi, H. Kavoosi Balutaki, I. Golshokouh, M. Goudarzi Khoigani, Investigating the effect of friction stir welding parameters on the mechanical and metallurgical properties of the weld zone Aluminum-based composite materials, Research in engineering sciences and nanomaterials, 1(3) (2022) 46-55 (In Persian). [18] M. Ellis, Joining of aluminium based metal matrix composites, International Materials Reviews, 41(2) (1996) 41-58. [19] L. Ceschini, I. Boromei, G. Minak, A. Morri, F. Tarterini, Effect of friction stir welding on microstructure, tensile and fatigue properties of the AA7005/10 vol.% Al2O3p composite, Composites science and technology, 67(3-4) (2007) 605-615. [20] G.-F. Zhang, S. Wei, J. Zhang, Z.-X. Wei, J.-X. Zhang, Effects of shoulder on interfacial bonding during friction stir lap welding of aluminum thin sheets using tool without pin, Transactions of Nonferrous Metals Society of China, 20(12) (2010) 2223-2228. [21] A. Byung-Wook, C. Don-Hyun, K. Yong-Hwan, J. Seung-Boo, Fabrication of SiCp/AA5083 composite via friction stir welding, Transactions of Nonferrous Metals Society of China, 22 (2012) s634-s638. [22] M. Bahrami, M.K.B. Givi, K. Dehghani, N. Parvin, On the role of pin geometry in microstructure and mechanical properties of AA7075/SiC nano-composite fabricated by friction stir welding technique, Materials & Design, 53 (2014) 519-527. [23] M. Bahrami, K. Dehghani, M.K.B. Givi, A novel approach to develop aluminum matrix nano-composite employing friction stir welding technique, Materials & Design, 53 (2014) 217-225. [24] M. Bahrami, N. Helmi, K. Dehghani, M.K.B. Givi, Exploring the effects of SiC reinforcement incorporation on mechanical properties of friction stir welded 7075 aluminum alloy: fatigue life, impact energy, tensile strength, Materials Science and Engineering: A, 595 (2014) 173-178. [25] H. Samarikhalaj, A. Nikbakht, M. Sadighi, S. Sheikhan, Investigating the Shear Strength of Friction Stir Lap Welded 7075 Aluminum Alloy, Amirkabir Journal of Mechanical Engineering, 49(4) (2018) 863-874 (In Persian). [26] A. Rabiezadeh, A. Afsari, Effect of nanoparticles addition on dissimilar joining of aluminum alloys by friction stir welding, Journal of Welding Science and Technology of Iran, 4(2) (2019) 23-34 (In Persian). [27] S. Suresh, K. Venkatesan, E. Natarajan, S. Rajesh, Performance analysis of nano silicon carbide reinforced swept friction stir spot weld joint in AA6061-T6 alloy, Silicon, 13(10) (2021) 3399-3412. [28] M. Bahrami, An investigation the effect of SiC particles on mechanical properties in friction stir butt joint AA7075, Amirkabir Univesity, Iran, 2012 (In Persian). [29] M. Miles, T. Nelson, B. Decker, Formability and strength of friction-stir-welded aluminum sheets, Metallurgical and Materials Transactions A, 35 (2004) 3461-3468. [30] S. Sadeghi, An investigation on residual stresses distribution in the friction stir welding of aluminum plates with ultrasonic waves, Amirkabir University Iran, 2013 (In Persian). [31] S. Babu, G.J. Ram, P. Venkitakrishnan, G.M. Reddy, K.P. Rao, Microstructure and mechanical properties of friction stir lap welded aluminum alloy AA2014, Journal of Materials Science & Technology, 28(5) (2012) 414-426. [32] G. Buffa, J. Hua, R. Shivpuri, L. Fratini, A continuum based fem model for friction stir welding—model development, Materials Science and Engineering: A, 419(1-2) (2006) 389-396. [33] H. Toyserkani, Structure, Properties and Materials Engineering, in: Principles of Materials Science (Structure, Properties and Materials Engineering), Isfahan University of Technology Press, Iran, 2008, pp. 233- 342 (In Persian). [34] R.K. Roy, Design of experiments using the Taguchi approach: 16 steps to product and process improvement, John Wiley & Sons, 2001. [35] D.C. Montgomery, Design and analysis of experiments, John wiley & sons, 2017. [36] K. Deplus, A. Simar, W.V. Haver, B.d. Meester, Residual stresses in aluminium alloy friction stir welds, The International Journal of Advanced Manufacturing Technology, 56 (2011) 493-504. [37] J. Zapata, M. Toro, D. López, Residual stresses in friction stir dissimilar welding of aluminum alloys, Journal of Materials Processing Technology, 229 (2016) 121-127. [38] A.K. Kadian, P. Biswas, Effect of tool pin profile on the material flow characteristics of AA6061, Journal of Manufacturing Processes, 26 (2017) 382-392. [39] K.S.A. Kumar, S.M. Murigendrappa, H. Kumar, Experimental investigation on effects of varying volume fractions of SiC nanoparticle reinforcement on microstructure and mechanical properties in friction-stir-welded dissimilar joints of AA2024-T351 and AA7075-T651, Journal of Materials Research, 34(7) (2019) 1229-1247. | ||
|
آمار تعداد مشاهده مقاله: 368 تعداد دریافت فایل اصل مقاله: 451 |
||