Ultrasonic-vibration assisted arc-welding of aluminum alloys

• Autorzy: Krajewski A. , Włosiński W. , Chmielewski T. , Kołodziejczak P.
• Języki publikacji: EN

Abstrakty

EN

The structure and hardness of the surface-welds and fusion-welds made on a 2017A aluminum alloy waveguide using the MIG and TIG methods with and without the participation of ultrasonic vibrations were examined. Cross-sections of the fusions and surface-welds thus obtained were observed in a microscope and the hardness distributions were determined. The aim of the study was to analyze the effects of the ultrasonic vibrations applied to the melted metal pool by a vibrating substrate which in our experiments was a waveguide. The interactions of the ultrasonic vibrations with the molten metal during its solidification and also with the heat-affected zone were examined at various phases of the vibration wave. The ultrasonic vibrations affected the structure of a weld. These changes are strongly depended on the wave phase.

Słowa kluczowe

EN

ultrasonic vibrations; MIG/TIG welding; aluminum alloys; structure; microhardness

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2012
• Tom: Vol. 60, nr 4
• Strony: 841--852
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Krajewski A.

autor

Włosiński W.

autor

Chmielewski T.

autor

Kołodziejczak P.

• Department of Joining Engineering, Institute of Materials Processing Faculty of Production Engineering, Warsaw University of Technology, 85 Narbutta St., 02-524 Warsaw, Poland

Bibliografia

• [1] A. Krajewski, “Welding processes supported by mechanical vibration”, Science Bulletin. Mechanics Series, Innovations inJoining Techniques 229, 33-51 (2009).
• [2] A. Krajewski, “The investigation of the effect of ultrasound field on the weld structure and properties”, Science Bulletin. Mechanics Series 230, 71-82 (2010).
• [3] A. Krajewski, “Mechanical vibrations in the welding processes”, Welding Technology Review 6, 37-42 (2011).
• [4] H. Longbiao, W. Minsheng, L. Luming, and H. Hongwei, “Ultrasonic generation by exciting electric arc: A tool for grain refinement in welding process”, Applied Physics Letters 89, 131-504 (2006).
• [5] L. Yu-Cheng, W. Zhi-Wei, and C. Xi-Zhang, “Effect of arc ultrasound on microstructures and mechanical properties of plasma arc welded joints of SiCp/Al MMCs”, Trans. NonferrousMetals Society of China 21, 272-277 (2011).
• [6] M. Farrow, Laser/Ultrasonic Welding Technique, United States Patent 4330699 (1982).
• [7] D. Weng-Long, “Effects of high-intensity ultrasonic-wave emission on the weldability of aluminum alloy 7076-T6”, MaterialsLetters 57, 2447-2454 (2003).
• [8] H. Dong, L. Yang, C. Dong, and S. Kou, “Improving arc joining of Al to steel and Al to stainless steel”, Materials Scienceand Engineering A 534, 424-435 (2012).
• [9] K. Balasubramanian, “Studies on the effect of vibration on hot cracking and grain size in AA7075 aluminum alloy welding”, Int. J. Engineering Science and Technology 3, 1 (2011).
• [10] L. Qingmei, Z. Yong, S. Yoling, Q. Feipeng, and Z. Qijie, “Influence of ultrasonic vibration on mechanical properties and microstructure of 1Cr18N9Ti stainless steel”, Materials andDesign 28, 1949-1952 (2007).
• [11] Y. Cui, C. Xu, Q. Han, “Effect of ultrasonic vibration on unmixed zone formation”, Scripta Mater. 55, 975-978 (2006).
• [12] D. Weng-Long, Effects of high-intensity ultrasonic-wave emissionon the weldability of aluminum alloy 7076-T6, Materials Letters 57, 2447-2454 (2003).
• [13] S. Kim., T. Watanabe, and Y. Yoshida, “Ultrasonic vibration aided laser welding of Al alloys: improvement of laser weldingquality”, J. Laser Aplications 7 (1), 38-46 (1995).
• [14] W. Weite, “Influence of vibration frequency on solidification of weldments”, Scripta Mater. 42, 661-665 (2000).
• [15] X. Zhiwu, Y. Jiuchun, W. Gaohui, K. Xiangli, and Y. Shipin, “Interface structure of ultrasonic vibration aided interaction between Zn-Al alloy and Al2O3p/6061Al composite”, CompositesScience & Technology 65, CD-ROM (2005).
• [16] T. Chmielewski and D. Golański, “New method of in-situ fabrication of protective coatings based on Fe-Al intermetallic compounds”, Proc. Mechanical Engineers Part B-J. EngineeringManufacture B4 225, 611-616 (2011).
• [17] J. Piekoszewski, A. Krajewski, F. Prokert, J. Senkara, J. Stanisławski, L. Waliś, Z. Werner, and W. Włosiński, “Brazing of alumina ceramics modified by pulsed plasma beams combined with arc PVD treatment”, Vacuum 70 (2-3), 307-312 (2003).
• [18] W. Włosiński, A. Krajewski, J. Piekoszewski, J. Stanisławski, and L. Waliś, “Intense pulsed plasma beams in ceramic/metal brazing”, Nukleonika 45 (2), 145-1463 (2000).
• [19] W. Włosiński and T. Chmielewski, “Plasma-hardfaced chromium protective coatings-effect of ceramic reinforcement on their wettability by glass”, Contributions of Surface Engineering toModern Manufacturing and Remanufacturing 1, 48-53 (2002).
• [20] M. Chmielewski and K. Pietrzak, “Processing, microstructure and mechanical properties of Al2O3-Cr nanocomposites”, J. Eur. Ceramic Society 27 (2-3) 1273-1279 (2007).
• [21] J. Braszczyński, “The mechanism of the influence of vibration on the crystallization of cast alloys”, Mem. Etud. Sci. Rev. Metall. 80 (1), 27-36 (1983).
• [22] L. Mingyu, J. Hongjun, W. Chunqing, B. Han Sur, and B. Hee Seon, “Interdiffusion of Al-Ni systems enhanced by ultrasonic vibration at ambient temperature”, Ultrasonics 45, 61-65 (2006).
• [23] A. Krajewski, “Joining of Si3N4 to wear-resistant steel by direct diffusion bonding”, J. Materials Processing Technology 54 (1-4), 103-108 (1995).
• [24] W. Węglewski, M. Basista, M. Chmielewski, and K. Pietrzak, “Modeling of thermally induced damage in the processing of Cr-Al2O3”, Composites Part B-Engineering 43 (2), 255-264 (2012).
• [25] R. Kumar, M. Panchal, “Study of circular crested waves in a micropolar porous medium possessing cubic symmetry”, Bull. Pol. Ac.: Tech. 59 (1), 103-110 (2011).
• [26] R. Kumar, A. Miglani, and S. Kumar, “Reflection and transmission of plane waves between two different fluid saturated porous half spaces”, Bull. Pol. Ac.: Tech. 59 (2), 227-234 (2011).
• [27] L. Chon and M. Chin, Heat Flow in Fusion Welding, in Welding,ASM Hand Book, Brazing, and Soldering, vol. 6, ASM The Materials Information Society, London, 1993.
• [28] L. Olejnik, A. Rosochowski, “Methods of fabricating metals for nano-technology”, Bull. Pol. Ac.: Tech. 53 (4), 413-423 (2005).
• [29] E. Kannatey-Asibu jr, W. Włosiński, and A. Krajewski, “New methods of solid-state joining thin-wall elements made of aluminum alloys”, Archives of Metallurgy and Materials 53 (3), 669-678 (2008).
• [30] Z. Lindeman, K. Skalski, W. Włosiński, J. Zimmerman, “Thermo-mechanical phenomena in the process of friction welding of corundum ceramics and aluminium”, Bull. Pol. Ac.:Tech. 54 (1), 1-8 (2006).