Abstract
Materials difficult to weld by fusion welding processes can be successfully welded by friction welding. The strength of the friction welded joints is extremely affected by process parameters (rotation speed, friction time, friction pressure, forging time, and forging pressure). In this study, statistical values of tensile strength were investigated in terms of rotation speed, friction time, and friction pressure on the strength behaviours of friction welded AISI 1040 and AISI 304L alloys. Then, the tensile test results were analyzed by analysis of variance (ANOVA) with a confidence level of 95 % to find out whether a statistically significant difference occurs. As a result of this study, the maximum tensile strength is very close, which that of AISI 1040 parent metal of 637 MPa to could be obtained for the joints fabricated under the welding conditions of rotation speed of 1700 rpm, friction pressure of 50 MPa, forging pressure of 100 MPa, friction time of 4 s, and forging time of 2 s. Rotation speed, friction time, and friction pressure on the friction welding of AISI 1040 and AISI 304L alloys were statistically significant regarding tensile strength test values.
Abstract
Werkstoffe, die schwer mittels Schmelzschweißprozessen zu verbinden sind, können erfolgreich mittels Reibschweißen geschweißt werden. Die Festigkeit der Reibschweißverbindungen wird extrem durch die Prozessparameter beeinflusst (Rotationsgeschwindigkeit, Reibzeit, Reibdruck, Presszeit und Pressdruck). In der diesem Beitrag zugrunde liegenden Studie wurden die statistischen Werte der Zugfestigkeit von reibgeschweißten AISI 1040 und AISI 304L Legierungen untersucht, und zwar in Abhängigkeit von der Rotationsgeschwindigkeit, der Reibzeit und dem Reibdruck. Danach wurden die Ergebnisse der Zugversuche mittels Abweichungsanalyse (ANOVA) untersucht und zwar mit einer statistischen Sicherheit von 95 %, um herauszufinden, ob statistisch signifikante Abweichungen auftreten. Als ein Ergebnis dieser Studie stellte sich heraus, dass sich eine maximale Zugfestigkeit nahe der des AISI 1040 Grundwerkstoffes von 637 MPa ergibt, wenn die Verbindungen bei einer Rotationsgeschwindigkeit von 1700 U/min, einem Reibdruck von 50 MPa, einem Pressdruck von 100 MPa, einer Reibzeit von 4 s und einer Presszeit von 2 s hergestellt werden. Insgesamt ist festzustellen, dass die Rotationsgeschwindigkeit, die Reibzeit und der Reibdruck die Zugfestigkeitswerte der AISI 1040 und AISI 304L Legierungen statistisch signifikant beeinflussen.
References
1 J. A.Brooks, J. C.Lippold: Selection of wrought austenitic stainless steels, ASM Metal Handbooks Vol. 6, Materials Park, Ohio, USA (1993), pp. 456–469Search in Google Scholar
2 J. C.Lippold, D. J.Kotechi: Welding Metallurgy and Weldability of Stainless Steels, Wiley-Interscience, USA (2005)Search in Google Scholar
3 R. J.Castro, J. J.De Cadenet: Welding Metallurgy of Stainless Steel and Heat- Resisting Steels, Cambridge University Press, Cambridge, UK (1974)Search in Google Scholar
4 A.Aran, M. A.Temel: The Production, Use and Standards of Stainless Steels, 2nd Edition, Saritas Technical Publication No. 1, Istanbul, Turkey (2004)Search in Google Scholar
5 Z.Sahin Ahmet, B. S.Yibas, M.Ahmed, J.Nickel: Analysis of the friction welding process in relation to the welding of copper and steel bars, J. Mater. Process. Technol.82 (1998), pp. 127–13610.1016/S0924-0136(98)00032-6Search in Google Scholar
6 V. V.Satyanarayana, M. G.Reddy, T.Mohandas: Dissimilar metal friction welding of austenitic-ferritic stainless steels, J. Mater. Process. Technol.160 (2005), pp. 128–13710.1016/j.jmatprotec.2004.05.017Search in Google Scholar
7 S. D.Meshram, T.Mohandas, G. M.Reddy: Friction welding of dissimilar pure metals, J. Mater. Process. Technol.184 (2007), pp. 330–33710.1016/j.jmatprotec.2006.11.123Search in Google Scholar
8 M.Sahin: Joining with friction welding of high-speed steel and medium-carbon steel, J. Mater. Process. Technol.168 (2005), pp. 202–21010.1016/j.jmatprotec.2004.11.015Search in Google Scholar
9 N.Özdemir: Investigation of the effect of the mechanical properties of friction welded joints between AISI 304L, AISI steel as a function ofrotational speed, Mater. Lett.59 (2005), pp. 2504–250910.1016/j.matlet.2005.03.034Search in Google Scholar
10 T. Y.Sunay, M.Sahin, S.Altintas: The effects of casting and forging processes on joint properties in friction-welded AISI 1050 and AISI 304 steels, Int. J. Adv. Manuf. Technology.44 (2009), pp. 68–7910.1007/s00170-008-1810-0Search in Google Scholar
11 H. C.Dey, M.Ashfag, A. K.Bhaduri, K. P.Rao: Joining of titanium to 304L stainless steel by friction welding, J. Mater. Process. Technol.209 (2009), pp. 5862–587010.1016/j.jmatprotec.2009.06.018Search in Google Scholar
12 E.Taban, J. E.Gould, J. C.Lippold: Dissimilar friction welding of 6061-T6 aluminum and AISI 1018 steel. Properties and microstructural characterization, Mat. Des.10 (2010), pp. 2305–231110.1016/j.matdes.2009.12.010Search in Google Scholar
13 N.Arivazhagan, S.Singh, S.Prakash, G. M.Reddy: Investigation on AISI 304 austenitic stainless steel to AISI 4140 low alloy steel dissimilar joints by gas tungsten arc, electron beam, and friction welding, Mat. Des.32 (2011), pp. 3036–3050Search in Google Scholar
14 S.Celik, I.Ersozlu: Investigation of the mechanical properties and microstructure of friction welded joints between AISI 4140 and AISI 1050 steels, Mat. Des.30 (2009), pp. 970–97610.1016/j.matdes.2008.06.070Search in Google Scholar
15 G. M.Reddy, P. V.Ramana: Role of nickel as an interlayer in dissimilar metal friction welding of maraging steel to low alloy steel, J. Mater. Process. Technol.212 (2012), pp. 66–7710.1016/j.jmatprotec.2011.08.005Search in Google Scholar
16 K. S.Mortensen: Mechanical properties and microstructures of inertia friction welded 416 stainless steel, Weld. J. Res. Suppl. (2001), pp. 268–273Search in Google Scholar
17 M.Sahin, H. E.Akata: An experimental study on friction welding of medium carbon and austenitic stainless steel components, Indust. Lub. Tribol.153 (2004), pp. 1011–1018Search in Google Scholar
18 I.Kırık, N.Ozdemir, T.Teker: Weldability of martensitic stainless steel to medium carbon steel by using friction welding, Proc. of the International Iron & Steel Symposium, Vol. 2, Karabuk, Turkey (2012), pp. 826–831Search in Google Scholar
19 N.Ozdemir, F.Sarsılmaz, A,Hasçalık: Effect of rotational speed on the interface properties of friction-welded AISI 304L to 4340 steel, Mat. Des.28 (2007), pp. 301–30710.1016/j.matdes.2005.06.011Search in Google Scholar
20 R.Paventhan, P. R.Lakshminarayanan, V.Balasubramanian: Optimization of friction welding process parameters for joining carbon steel and stainless steel, Journal of Iron and Steel Research International19 (2012), No. 1, pp. 66–7110.1016/S1006-706X(12)60049-1Search in Google Scholar
21 R.Alpar: Check the Methods of Multivariate Analysis Statistics 1, Nobel bookhouse, 2003, p. 141Search in Google Scholar
22 C.Gregory: Multivariate Analysis of Variance (MANOVA) I. Theory, 1998Search in Google Scholar
23 K.Özdamar: Packet Statistics and Data Analysis 1–2, Kaan Yayınevi, Eskişehir, Turkey (2004)Search in Google Scholar
24 D. N.Gujarati: Basic Econometrics, 4th Edition, United States Military Academy, West Point, New York, USA (2003)Search in Google Scholar
25 G. B.Tabachnick, S. L.Fidell: Using Multivariate Statistics, California State University, Northridge, 1st Edition, 2006Search in Google Scholar
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