Nghiên cứu hàn kết cấu dạng tấm phẳng giữa động và hợp kim nhôm làm 6061 bằng phương pháp hàn ma sát khuấy

I H C QU C GIA TP.HCM TR NG I H C BÁCH KHOA VÕ MINH LUÂN NGHIÊN C U HÀN K T C U D NG T M PH NG GI A NG VÀ H P KIM NHÔM 6061 B NG PH NG PHÁP HÀN MA SÁT KHU Y Chuyên ngành : K Thu t C Khí Mã s : 8520103 LU N V N TH C S TP H CHÍ MINH, tháng n m 2021 Cơng trình đ Cán b h c hoàn thành t i: Tr ng ng d n khoa h c: TS L u Ph i h c Bách Khoa – HQG-HCM ng Minh Cán b ch m nh n xét 1: TS Nguy n Thanh H i Cán b ch m nh n xét 2: PGS.TS Ph m S n Minh Lu n v n th c s đ c b o v t i Tr ng i h c Bách Khoa, HQG Tp.HCM ngày 20 tháng 08 n m 2021 (Tr c n) Thành ph n h i đ ng đánh giá lu n v n th c s g m: PGS.TS Nguy n H u L c - Ch t ch TS Ph m Quang Trung - Th ký TS Nguy n Thanh H i - Ph n bi n PGS.TS Ph m S n Minh - Ph n bi n TS Nguy n Vinh D - y viên Xác nh n c a Ch t ch H i đ ng đánh giá LV Tr ngành sau lu n v n đ CH T CH H I NG ng Khoa qu n lý chuyên c s a ch a (n u có) TR NG KHOA C KHÍ TR C NG HÒA XÃ H I CH NGH A VI T NAM c l p - T - H nh phúc I H C QU C GIA TP.HCM NG I H C BÁCH KHOA NHI M V LU N V N TH C S H tên h c viên: VÕ MINH LUÂN MSHV: 2070259 Ngày, tháng, n m sinh: 26/08/1993 N i sinh: TP H Chí Minh Chuyên ngành: I TÊN K Thu t C Khí Mã s : 8520103 TÀI: Nghiên c u hàn k t c u d ng t m ph ng gi a đ ng h p kim nhôm 6061 b ng ph ng pháp hàn ma sát khu y II NHI M V VÀ N I DUNG: Nghiên c u lý thuy t hàn ma sát khu y hai v t li u khác nhau, q trình hàn có sinh nhi t nên ph i th c hi n mô ph ng nhi t b ng ph n m m máy tính, ti n hành th c nghi m hàn ma sát khu y hai v t li u khác dùng ph ng pháp phân tích th ng kê đ đ a nh n xét cho th c nghi m III NGÀY GIAO NHI M V : 22/02/2021 IV NGÀY HOÀN THÀNH NHI M V : 13/06/2021 V CÁN B H NG D N: TS L u Ph ng Minh……………………… Tp H Chí Minh, ngày tháng n m 2021 CÁN B H NG D N (H tên ch ký) TR CH NHI M B MÔN ÀO T O (H tên ch ký) NG KHOA C KHÍ (H tên ch ký) LU L IC L u tiên xin c d n th c hi nh cs ng tài lu i gian th c hi n lu ng d n, l i khuyên s c v n t Th y, nh ng ki n th c mà Th y cung c tơi có th tháo g nh ng khu t m t v v tơi có th hồn thành lu k thu t liên quan i h n t tr v ki n th ng tr thi t b d ng c thí nghi m C m y/ Cơ c a b t b công ngh v t li tơi thí nghi m ng th il ic n Th y/ Cô c ng d y môn h c Cao h c, cung c p ki n th Cu i xin g i l i c ng h , chia s n anh, ch th c hi n lu n ng nghi p, b n bè, gia ng viên su t trình h c t p t Bách Khoa TPHCM giúp tơi có nh i u ki n t t nh hoàn thành vi c h c t p nghiên c u t Tôi xin trân tr ng c TP H Chí Minh H c viên Võ Minh Luân HVTH : VÕ MINH LUÂN LU TÓM T T Th m hi n t i có r b o v mô i, nhiên v m t ng, hi u qu ng hàn ma sát khu y (FSW) nhi t công ngh V ch c ti n k thu ng m i hàn c l n im tm b n m i, gi m ng su b n tt cịn có th d dàng hàn k t n i hai lo i v t li u khác Trong nghiên c u s c n vi c th c nghi m mô ph ng hàn hai t m v t li u khác gi a ng nhôm 6061 S d ng ph n m mơ ph ng l i nhi q trình hàn Thơng qua mơ ph ng ta có th d c nhi trình hàn ng thái r n c a kim lo i Trong trình th c nghi m s s d h ki m tra l i q trình mơ ph ng V ph d ng s th kéo, ch p SEM ng m i hàn, m có th theo dõi dịng v t li u l ch th c nghi m Box- cs d nh gi a thông s ng ti ng d ch chuy b n kéo l n nh Các thơng s t ng u ki n thí nghi m 65% so v i kim lo b n kéo T c ch ng m i hàn t t nh t ng n n tài: Hàn ma sát khu y, H p ch t liên kim, Mô ph ng comsol, hàn liên k t hai kim lo i khác HVTH : VÕ MINH LUÂN ng c ), nhi c so v i kim lo i n n nhôm m c thông s a thông s T ng c a thông s hàn (t c LU ABSTRACT Currently, there are many metal welding methods, but in terms of environmental protection and energy efficiency, friction stir welding (FSW) has been a "green technology" for many years, and it is also a great technological advance in this period In terms of weld quality, this method results in a weld with greater strength, increased fatigue strength, reduced residual stress, less defects In addition, this method can also easily weld two connections different types of materials In this study, we will talk about experimenting and simulating the welding of two different materials between copper and aluminum 6061 Using COMSOL software to simulate the temperature in the welding process Through simulation, we can predict the welding process temperature as well as the solid state of the metal During the experiment, a heat meter will be used to check the simulation process As for the evaluation of weld quality, the methods used will be tensile testing, nanoscale SEM to be able to monitor the material flow and intermetallic layer (IMC) The Boxbehnken experimental planning method is used to determine between the impact parameters of the welding parameters (rotational speed, feed rate and tool tip displacement), temperature, and tensile strength From there, the maximum tensile strength achieved compared to the base metal is aluminum at any parameter level The optimal parameters of welding parameters to achieve the best weld quality under test conditions are 65% compared to the base metal Keywords for the topic: Friction stir welding, Intermetallic compound, Comsol simulation, bonding two different metals HVTH : VÕ MINH LUÂN LU L u hàn k t c u d ng t m ph ng hai v t li u khác gi hàn ma sát khu ng h p kim nhôm 6061 b u c a riêng Các s li u tài li u s d ng lu khoa h c T t c nh ng tham kh o k th c công b nghiên c u c trích d H c viên Võ Minh Luân HVTH : VÕ MINH LUÂN LU M CL C M C L C i DANH SÁCH HÌNH V ii DANH SÁCH B NG BI U iii T VI T T T iv TÓM T T NGHIÊN C U 1.1 Gi i thi u 1.2 ng d ng hàn ma sát khu y hai v t li u 1.3 M c tiêu nhi m v c a nghiên c u 1.4 L tài LÝ LU N VÀ GI THUY T KHOA H C b n m i hàn thông s ng 2.2 D ng c hàn ma sát khu y 14 2.3 C u trúc hàn 19 2.4 Dòng v t li u 21 2.5 Các vùng trình hàn 22 2.6 Các h p ch t liên kim 25 2.7 L c trình hàn 29 2.8 Qúa trình sinh nhi t hàn 29 2.9 Khuy t t t hàn 36 U 39 3.1 Ch n b thơng s thí nghi m mơ hình toán 39 HVTH : VÕ MINH LN LU 3.2 Mơ hình thí nghi m 49 t qu 53 3.4 K t qu th o lu n 67 K T LU NG PHÁT TRI 86 4.1 K t lu n 86 4.2 ng phát tri 88 TÀI LI U THAM KH O 89 HVTH : VÕ MINH LUÂN LU DANH SÁCH HÌNH V Hình 1.1 mơ t q trình hàn ma sát khu Hình 1.2 ng d nc cc Hình 1.3 Chi ti t máy k t h p gi Hinh 2.1 T hàn t ng ng nhôm quay khác c a FSW v t li u Al Hình 2.2 B m t m i hàn b m t b c chi c chi Hình 2.3 Hình d ng c Hình 2.4 Mơ t v trí l ch c Hình 2.5 : Mơ t ch u khu ng m i hàn khác d d u khu y hình d ng Hình 2.6 Hình dáng vai d ng c Hình 2.7 H u d ng c Hình 2.8 Hình th c xen k Hình 2.9 H n h .19 ng nh t Hình 2.10 K t c u g n gi ng h n h p Hình 2.12 Gi Hình 2.13 pha Al Cu thơng s Hình 2.14 V u khu y Hình 2.15 a/ Cùng kim lo i b/ Hai kim lo ns n kh HVTH : VÕ MINH LUÂN 20 LU K T LU NG NGHIÊN C 4.1 K t lu n Lu - i quy t v sau: Trình bày nh ng n i dung t ng quan v hai v t li u khác - y (FSW) ng nhôm, nh Trình bày nh c m cơng ngh nghiên c u khoa h c c hàn ma sát khu y c a kim lo i ho c kim lo i khác nhau: + Các y u t c n m i hàn + D ng c hàn + V t li u hàn + L c tác d ng + T ch c m i hàn + Nhi - trình hàn D lý thuy t ti n hành mơ ph ng q trình sinh nhi t lúc hàn S d ng ph n m qu cho th y nhi C, nhi nhi t vùng nhi ti n hành q trình Sau mơ ph ng, k t t u khu y m i hàn có nhi giao ng t xung quanh m i hàn t n ng i x ng qua m ng khu v u ch ng minh nhi i x ng qua tâm m i hàn tính ch t c a nh ng kim lo i n n khác Nhi t i vai d ng c t hàn ph thu c r t l n vào thông s hàn (t ng d ch chuy n ch vòng quay, v n t c hàn, vòng quay thông s ng m i hàn Bên c c a d ng c a t m Nhi t c th c nghi m cho nhi th nhi t g n gi ng v HVTH : VÕ MINH LUÂN 86 ng t i vai th nhi t c a vi c mô ph ng b ng LU ph n m y cho ta th thuy t ba c nh u vào theo lý u xác, nh ng hàm có th mơ ph ng cho q trình hàn ma sát khu y hai v t li u khác - Sau th c nghi m, ta có k t qu kéo c a m u hàn, giá tr th p nh t mà ta m u có giá tr cl n kéo c a nh ng nghiên c khu y gi c hàn ma sát ng nhơm (B y ta có th th nghi u c a lu c vi c th c i phù h p v i tình hình nghiên c u th gi i - ng th i ti n hành phân tích th c nghi m b - Behnken u ki n thí nghi m hồn tồn phù h mô t th c nghi m Các thơng s máy có vi c hình thành m i hàn ch t t ct cho k t qu b n m i hàn m ng h n ng m i hàn Ti n hành phân tích nhân u ki n thí nghi m này, có th c 65% so v i kim lo B thông s t ng n n vòng quay n = 677.77 vòng/ phút, t ng d ch chuy n x = 0.8mm V i vi b n c a kim lo i n n m b n kéo b n kéo kho ng t s r t kinh ng t giá tr r t t t so v i nh ng nghiên c u khác th gi i - Trong q trình hàn ta có th nh n th y m t s khuy t t t m t, thi u v t hàn - có th ch ng m i hàn c n ph i có nh ng th c nghi m b n kéo c a m i hàn, hình ch p t ch c t vi, thí nghi m u n m u trình th c hi n lu vi c ch p hình t ch c t vi thí nghi m u v i vi c thí nghi ch Covid-19 bùng phát nên c th c hi ng m i hàn HVTH : VÕ MINH LUÂN 87 LU Vì lúc làm vi c m i hàn có b phá h y hay khơng m i v n quan tr ng nh t ng phát tri n nh ng h n ch trình th c nghi m ta có th ng ng phát tri - L a ch n l i b thông s m i g n v i vùng t cho k t qu th c nghi m t - Nghiên c u rõ thêm nh ng c a t ng d ch chuy n b n m i hàn - Nghiên c u phát tri n d ng c - Nghiên c b h p ch u su t hàn t t b n m i hàn T m ki c b dày liên kim nh b nm i hàn - Nghiên c u d ng c , b thơng s có th c nh ng t m v t li ng nghiên c u có th áp d lai, nghiên c u sâu ng h n ch v nh ng ki n th c, kinh nghi m, th i gian, d ch b nh kinh phí, nên r c xin ý c a c a Qúy Th y/Cô cho vi c c n b ng nghiên c u c n khai thác thêm nh m giúp v phù h p v i vi c ng d ng th c t HVTH : VÕ MINH LUÂN 88 nghiên c LU TÀI LI U THAM KH O [1] G Kerrar, N Merah, A N Shuaib, F AL-Badour and A Bazoune, Experimental and Numerical Investigations of Friction Stir Welding of Aluminum to Copper, Applied Mechanics, Behavior of Materials, and Engineering Systems,pp 119-138, 2017 [2] A Esmaeili, G M Besharati, R H Zareie, Experimental investigation of material flow and welding defects in friction stir welding of aluminum to brass Materials and Manufacturing Processes, vol 27, no 12, pp 1402-1408, 2012 [3] A Esmaeili, M B Givi and H Z Rajani, A metallurgical and mechanical study on dissimilar Friction Stir welding of aluminum 1050 to brass (CuZn30) Materials Science and Engineering A, vol 528, no 22, pp 7093-7102, 2011 [4] A Esmaeili, H Z Rajani, M Sharbati, M B Givi and Shamanian, The compounds formation role and of rotation mechanical speed on behavior of M intermetallic friction stir welded brass/aluminum 1050 couple Intermetallics, vol 19, no 11, pp 17111719, 2011 [5] N Sharma, Z A Khan and A N Siddiquee, "Friction stir welding of aluminum to copper," Department of Mechanical Engineering, 2017 [6] F B Argesi, A Shamsipur and S E Mirsalehi, "Dissimilar Joining of Pure Copper to Aluminum Alloy via Friction Stir Welding," 2017 [7] Kush P MEHTA, Vishvesh J BADHEKA,"Influence of tool pin design on properties of dissimilar copper to aluminum friction stir welding", Department of HVTH : VÕ MINH LUÂN 89 LU Mechanical Engineering, School of Technology, Pandit Deendayal Petroleum University, Raisan, Gandhinagar 382007, India, 2017 [8] H Z Rajani, A Esmaeili, M Mohammadi, M Sharbati and M Givi, "The role of metal-matrix composite development during friction stir welding of aluminum to brass in weld characteristics," Journal of Materials Engineering and Performance, vol 21, no 11, pp 24292437, 2012 [9] K Mehta and V Badheka, "Investigations on friction stir welding defects for dissimilar copper to aluminum materials under different process parameters," Proceedings of International Conference on Friction Based Processes IISc-Bangalore, India, 2014, pp 1-4 [10] M E Aalami-Aleagha, B Hadi and M A Shahbazi, "3-dimensional numerical analysis and of aluminum," friction Journal stir of Mechanical welding Science of and copper Technology, vol 30, no 8, pp 3767-3776, 2016 [11] H Fujii, L Cui, M Maeda and K Nogi, "Effect of tool shape on mechanical properties and microstructure of friction stir welded aluminum alloys," Materials Science and Engineering A, vol 419, no 1, pp 2531, 2006 [12] D Lohwasser and Z Chen, Friction stir welding: From basics to applications New York, USA: Elsevier, 2009 [13] Y C Chen, A Gholinia and P B Prangnell, "Interface structure and bonding in abrasion circle friction stir spot welding: A novel approach for rapid welding aluminium alloy to automotive sheet," Materials Chemistry and Physics, vol 134, pp 459-463, 2012 HVTH : VÕ MINH LUÂN 90 LU [14] R Cao, G Yu, J H Chen and P.-C Wang, "Cold metal transfer joining aluminum alloys-to-galvanized mild steel," Journal of Materials Processing Technology, vol 213, pp 1753-1763, 2013 [15] S Chen, J Huang, K Ma, X Zhao and A Vivek, Microstructures and Mechanical Properties of Laser Penetration Welding Joint With/Without Ni-Foil in an Overlap Steel-on-Aluminum Configuration, vol 45, 2014 [16] L Cederqvist and A Reynolds, "Factors affecting the properties of friction stir welded aluminum lap joints," Welding Journal, vol 80, no 12, pp 281-288, 2001 [17] R Sarrafi "Evaluation of aluminum to of copper microstructure friction stir and butt mechanical welds," properties Friction Stir Welding and Processing, vol VI, pp 253-264, 2011 [18] M M X Muthu and V Jayabalan, "Tool travel speed effects on the microstructure of friction stir welded aluminum copper joints," Journal of Materials Processing Technology, vol 217, pp 105-113, 2015 [19] X W Li, D T Zhang, Q Cheng and W Zhang, "Microstructure and mechanical alloy properties butt joints of by dissimilar friction pure stir copper/1350 welding," aluminum Transactions of Nonferrous Metals Society of China, vol 22, no 6, pp 1298-1306, 2012 [20] H Liu, J Shen, L Zhou, Y Zhao, C Liu and L Kuang, "Microstructural charactersation stir welded and joints of mechanical aluminum alloy properties to copper," of Science Technology of Welding and Joining, vol 16, no 1, pp 92-98, 2011 HVTH : VÕ MINH LUÂN 91 friction and LU [21] O Lorrain, V Favier, H Zahrouni and D Lawrjaniec, "Understanding the material flow path of friction stir welding process using unthreaded tools," Journal of Materials Processing Technology, vol 210, pp 603-609, 2010 [22] Y Fotouhi, transverse S Rasaee, speed of the A Askari tool on and H Bisadi, microstructure "Effect and of mechanical properties in dissimilar butt friction stir welding of Al5083 copper sheets," Engineering Solid Mechanics, vol 2, no 3, pp 239-246, 2014 [23] H Bisadi, S Rasaee and Y Fotoohi, "Studying of tool rotation speed on mechanical properties of copper Al5083 butt joint welded by friction stir welding," Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol 229, no 10, pp 1734-1741, 2015 [24] Y Fotoohi, S Rasaee, H Bisadi and M Zahedi, "Effect of friction stir welding parameters microstructure Proceedings of of the the on the dissimilar Institution of mechanical properties Al5083 copper Mechanical and butt Engineers, joint," Part L: Journal of Materials Design and Applications, vol 228, no 4, pp 334-340, 2014 [25] E Akinlabi dissimilar "Effect metal of friction shoulder stir size welds," on weld properties Journal of of Materials Engineering and Performance, vol 21, no 7, pp 1514-1519, 2012 [26] E T Akinlabi, A Els-Botes and P J Mcgrath, "Effect of travel speed on joint properties of Proceedings of 2nd dissimilar International metal friction stir Conference on welds," Advances in Engineering and Technology (AET), Uganda, 2011, pp 155-161 [27] E T Akinlabi, displacement on A Els-Botes defect and formation HVTH : VÕ MINH LUÂN 92 H Lombard, in friction "Effect stir of welding tool of LU aluminium Friction and Stir copper," Welding Proceedings Symposium of Hamburg, the 8th Germany, International TWI Ltd, 2010, pp 216-224 [28] M Avettand-Fenöel, R Taillard, G Ji and D Goran, "Multiscale study of interfacial intermetallic compounds in a dissimilar Al 6082-T6/Cu friction-stir weld," Metallurgical and Materials Transactions A, vol 43, no 12, pp 46554666, 2012 [29] E T Akinlabi Characterisation of dissimilar friction stir welds between 5754 aluminium alloy and C11000 copper, 2011 [30] E T Akinlabi and S A Akinlabi, "Fracture location characterizations of dissimilar friction stir welds," International Journal of Mechanical, Industrial Science and Technology, vol 17, no 7, pp 1221-1225, 2011 [31] A Esmaeili, M B Givi and H Z Rajani, "Investigation of weld defects in dissimilar friction stir welding of aluminium to brass by radiographY," Science and Technology of Welding and Joining, vol 17, no 7, pp 539-543, 2012 [32] J A Al-Jarrah Surface morphology and mechanical properties of aluminum-copper joints welded by friction stir welding Jordan: Al-Balqa Applied University, 2014 [33] S S Vahid, H Amirabadi and M B G Kazem, "Formation and distribution of brittle structures in friction stir welding of AA 6061 to copper influence of preheat" Mechanics, Materials Science & Engineering Journal, vol 4, pp 25-34, 2016 [34] M S N Gupta, B Balunaik and K Murti, "Finite element modeling and thermo-mechanical analysis of friction stir welded Al/Cu bimetallic lap HVTH : VÕ MINH LUÂN 93 LU joints," International Journal of Mechanical Engineering and Robotics Research, vol 528, no 22, pp 165-173, 2012 [35] A Esmaeili, M B Givi and H Z Rajani, "A metallurgical and mechanical study on dissimilar Friction Stir welding of aluminum 1050 to brass (CuZn30)," Materials Science and Engineering A, vol 528, no 22, pp 7093-7102, 2011 [36] M E Aalami-Aleagha, B Hadi and M A Shahbazi, "3-dimensional numerical analysis of friction stir welding of copper and aluminum," Journal of Mechanical Science and Technology, vol 30, no 8, pp 3767-3776, 2016 [37] H Fujii, L Cui, M Maeda and K Nogi, "Effect of tool shape on mechanical properties and microstructure of friction stir welded aluminum alloys," Materials Science and Engineering A, vol 419, no 1, pp 25-31, 2006 [38] M Avettand-Fenöel, R Taillard, G Ji anh D Goran, "Multiscale study of interfacial intermetallic compounds in a dissimilar Al 6082-T6/Cu friction-stir weld," Metallurgical and Materials Transactions A, vol 43, no 12, pp 46554666, 2012 [39] J Ouyang, E Yarrapareddy and R Kovacevic, "Microstructural evolution in the friction stir welded 6061 aluminumalloy (T6-temper condition) to copper," Journal of Materials Processing Technology, vol 172, no 1, pp 110-122, 2006 [40] P A Colegrove Dimensional Flow and Thermal Modelling of the Friction Stir Welding Process: University of Adelaide, Department of Mechanical Engineering, 2001 [41] S H Singh and M Mahmeen, Effect of tool pin offset on the mechanical properties of dissimilar materials based on friction stir welding (FSW) HVTH : VÕ MINH LUÂN 94 LU International Journal of Modern Trends in Engineering and Research, vol 3, pp 75-80, 2016 [42] W B Lee and S B Jung, Void free friction stir weld zone of the dissimilar 6061 aluminum and copper joint by shifting the tool insertion location Materials Research Innovations, vol 8, no 2, pp 93-96, 2004 [43] S V Pande and V J Badheka, Effect of tool pin offset on mechanical and metallurgical properties of dissimilar FSW joints of 6061T6 Al alloy to copper material Indian Welding Journal, vol 47, no 3, pp 1-7, 2014 [44] A Elrefaey, M Takahashi and K Ikeuchi, Microstructure of aluminum/copper lap joint by friction stir welding and its performance Journal of High Temperature Society, vol 30, no 5, pp 286-292, 2004 [45] S P Agarwal, P Nageswaran, N Arivazhagan and K D Ramkumar, Development of friction stir welded butt joints of AA 6063 aluminium alloy and pure copper International Conference on Advanced Research in Mechanical Engineering Uttarakhand, India: IPM rt Ltd Naintal, 2012, pp 46-50 [46] T Debroy and H Bhadeshia, Friction stir welding of dissimilar alloys perspective A Science and Technology of Welding & Joining, vol 15, no 4, pp 266-270, 2010 [47] A Barcellona, G Buffa and L Fratini, Process parameters analysis in friction stir welding of AA6082-T6 sheets Proceeding of Esaform Conference on Material Forming 2004 Trondheim, Norway, 2004, pp 371-374 [48] R Beygi, M Kazeminezhad and A Kokabi, Butt joining of Al-Cu bilayer sheet through friction stir welding Transactions of Nonferrous Metals Society of China, vol 22, no 12, pp 2925-2929, 2012 HVTH : VÕ MINH LUÂN 95 LU [49] M Akbari, R A Behnagh and A Dadvand, Effect of materials position on friction stir lap welding of Al to Cu Scienceand Technology of Welding and Joining, vol 17, no 7, pp 581-588, 2012 [50] A Esmaeili, G M Besharati and R H Zareie, Experimental investigation of material flow and welding defects in friction stir welding of aluminum to brass Materials and Manufacturing Processes, vol 27, no 12, pp 1402-1408, 2012 [51] L Galvao, J Oliveira, A Loureiro and D Rodrigues, "Formation and distribution of brittle structures in friction stir welding of aluminium and copper: Influence of process parameters," Science and Technology of Welding and Joining, vol 16, no 8, pp 681-689, 2011 [52] ASM Handbooks, Alloy Phase Diagrams, vol ASM International, Materials Park, 2002) [53] X.-W Li, D.-T Zhang, Q Cheng, W Zhang, Trans Nonferr Metals Soc China 22, pp 1298 1306, 2012 [54] H Liu, J Shen, L Zhou, Y.Zhao, C Liu and L Kuang, Microstructural characterisation and mechanical properties of friction stir welded joints of Science and Technology of welding and joining, vol 16, no 1, pp 92 -98, 2011 [55] V Sinha, S Kundu and S Chatterjee, Perspect Sci., vol 8, pp 543 546, 2016 [56] M F X of friction stir wilded aliinum- J.Mater.Process.Technol., vol 217, pp.105 113, 2015 [57] B Meyghani, M B Awang, S S Emamian, M K B Mohd Nor and S R Pedapati, Metals 7, pp 450 473, 2017 HVTH : VÕ MINH LUÂN 96 LU [58] N K Sanjeev, V Malik and H S Hebbar, Int J Appl Sci Eng Res 3, pp 755 762, 2014 [59] C W Tan, Z G, Jiang, L Q Li, Y B Chen and X Y Chen, characterisation and mechanical properties of dissimilar Al-Cu joints produced by fricrion stir welding, Mater Des., vol 51, pp 466 [60] 473, 2013 X LI, D ZHANG, Q Cheng and W ZHANG, "Microstracture and mechanical properties of dissimilar pure copper/135S0 aluminum alloy butt joints by friction stir welding." Transactions of Nonferrous Metals Society of China, vol 22, no 6, pp 1298-1306 2012 [61] K Savolainen, J Mononen, T Saukkonen and H Hnninen, "A preliminary study on friction stir welding of dissimilar metal joints of copper and aluminium," in 6th International Friction Stir Welding Symposium, 2006 [62] M Avettand-Fenoel, R Taillard, G Ji and D Goran, "Multiscale study of interfacial intermetallic compounds in a dissimilar al 6082-T6/cu friction-stir weld." Metallurgical and Materials Transactions A, vol 43, no 12, pp 4655-4666 2012 [63] P K Sahu, S Pal, S ffset and tool rotational speed on mechanical properties and microstructures of J.Mater Process.Technol., vol 235, pp 55 67, 2016 [64] C Genevois, M Girard, B Huneau, X Sauvage and G Racineux, "Interfacial reaction during friction stir welding of al and cu," Metallurgical and Materials Transactions A, vol 42, no 8, pp 22-90, 2011 HVTH : VÕ MINH LUÂN 97 LU [65] M Song and R Kovacevic, "Thermal modeling of friction stir welding in a moving coordinate system and its validation," International Journal of Machine Tools and Manufacture, vol 43, pp 605-615, 2003 [66] A O Al-Roubaiy, S M Nabat and A theoretical analysis of friction stir welding of Al- The international Jounrnal of advanced manafacturing technology, vol 71, no 9-12, pp 1631 1642 2014 [67] S Celik and R Cakir, mechanical and microstructure properties of the Al- Metals, vol 6, no 6, pp 133, 2016 [68] T K Bhattacharya, H Das, S S Jana and T investigation of thermal history, material flow and mechanical properties of The international Journal of Advanced Manufacturing Technology, vol 88, no.1, pp 847-861, 2017 [69] H Bisadi, A Tavakoli and M Tour Sangsaraki, welding speeds on microstructures and mechanical properties of friction stir Mater Des., vol 43, pp.80 -88, 2013 [70] P Xue, D R Ni, D Wang, B L Xiao and Z Y Ma, welding parameters on the microstructure and mechanical proerties of the dissimilar Al-14, pp 4683 [71] Materials Science and Engineering: A, vol 528, no 13 4689, 2011 T Saeid, A Abdollahproperties of dissimilar aluminium copper lap joints made by friction stir J alloys Compounds, vol 490, no HVTH : VÕ MINH LUÂN 98 2, pp 652 655, 2010 LU [72] M Braunovic and N Alexandrov, IEEE Transactions on components, Packaging and Manufacturing Technology: Part A, vol 17, no 1, pp 78 85, 1994 [73] M Grujicic, C L Zhao and E C Dusel, "The effect of thermal contact resistance on heat management in the electronic packaging," Applied Surface Science, vol 246, pp 290-302, 2005 [74] P A Colegrove Dimensional Flow and Thermal Modelling of the Friction Stir Welding Process University of Adelaide, Department of Mechanical Engineering, 2001 [75] T L Bergman, A S Lavine and F P Incropera, "Chapter - Introduction," in Fundamentals of Heat and Mass Transfer, 7th Edition, ed: John Wiley & Sons, Incorporated, 2011, pp 2-49 HVTH : VÕ MINH LUÂN 99 LU PH N LÝ L CH TRÍCH NGANG H Tên: VÕ MINH LUÂN Sinh ngày: 26/08/1993 Chí Minh a ch : 4/112 KP1, P.Th nh L c, Q.12, TP H Chí Minh O Th i gian T ng n TP.HCM Chuyên ngành Cao h c- K thu Q TRÌNH CƠNG TÁC Th i gian V trí 7/2015 9/2017 Cty TNHH gi y Kraft Vina 9/2019 Cty TBD TNHH APAVE Châu Á Qu n lý d án HVTH : VÕ MINH LUÂN 100 Nhân viên ... 8520103 TÀI: Nghiên c u hàn k t c u d ng t m ph ng gi a đ ng h p kim nhôm 6061 b ng ph ng pháp hàn ma sát khu y II NHI M V VÀ N I DUNG: Nghiên c u lý thuy t hàn ma sát khu y hai... vi c phân tích n ch ng m i hàn ma sát khu y c c c n ti n hành: - Nghiên c lý thuy t c a trình hàn ma sát khu y v t li u khác - Quá trình làm d o kim lo i ma sát gi u hàn v i phôi l c ép gi a vai... so v i kim lo b n kéo T c ch ng m i hàn t t nh t ng n n tài: Hàn ma sát khu y, H p ch t liên kim, Mô ph ng comsol, hàn liên k t hai kim lo i khác HVTH : VÕ MINH LUÂN ng c ), nhi c so v i kim lo