Microstructural Investigations of Electron Beam Welded Joints of Continuous Saw Blades

Ion Mitelea; Dumitru Ochian; Ion-Dragoş Uţu

doi:10.3139/120.110514

Article

Microstructural Investigations of Electron Beam Welded Joints of Continuous Saw Blades

Ion Mitelea , Dumitru Ochian and Ion-Dragoş Uţu

Published/Copyright: December 11, 2013

Published by

Become an author with De Gruyter Brill

Submit Manuscript Author Information

From the journal Materials Testing Volume 55 Issue 11-12

Abstract

The active part of the endless saw blades is made of high-speed steel, HS2-10-1-8, and the holder from X32CrMoV4-1 alloyed steel. Joining of the both parts is realized by electron beam welding which provides narrow seams, small heat affected zones (HAZ), good reproducibility of the results, and uniform microstructure in welded joint zones. The present paper analyzes the structural modifications as well as the chemical composition in the welded joint zones obtained by the electron beam welding of two dissimilar steels. The phenomena which cause the continuous developement of the chemical composition of the weld are examined by energy dispersion X-ray technique (EDX) and scanning electron microscopy.

Kurzfassung

Der bewegliche Teil von Bandsägeblättern ist aus Schnellarbeitsstahl HS2-10-1-8 gefertigt und die Halterung besteht aus hochlegiertem Stahl X32CrMoV4-1. Die Verbindung beider Teile erfolgt mittels Elektronenstrahlschweißens, wodurch sich enge Nähte, eine schmale Wärmeeinflußzone (Heat Affected Zone – HAZ), eine gute Reproduzierbarkeit der Ergebnisse und eine gleichmäßige Mikrostruktur in der Schweißverbindung ergeben. In dem vorliegenden Beitrag werden die strukturellen Modifikationen und die chemische Zusammensetzung analysiert, die sich in der Elektronenstrahlschweißverbindung der zwei verschiedenen Stähle bilden. Die Phänomene, die die kontinuierliche Entwicklung der chemischen Zusammensetzung in der Schweißverbindung steuern, werden mittels EDX- und REM-Untersuchungen festgehalten.

References

1 I.Mitelea, D.Ochian, M.Burcă, I. D.Uţu: TIG welding opportunities of bimetallic endless saw blades, Proc. of Metal 2011, 20^th International Conference on Metallurgy and Materials, Brno (2011), pp. 607–613Search in Google Scholar

2 I. D.Uţu, I.Mitelea, D.Ochian, M.Burcă: Contributions on MIG/MAG welding of bimetallic endless saw blades, Proc. of NANOCON, Brno (2012), pp. 440–445Search in Google Scholar

3 P.Ferro, A.Zambon, F.Bonollo: Investigation of electron beam welding in wrought inconel 706-experimental and numerical analysis, Materials Science and Engineering A392 (2005), pp. 94–10510.1016/j.msea.2004.10.039Search in Google Scholar

4 Z.Sun, R.Karppi: The application of electron beam welding for the joining of dissimilar metals: An overview, Journal of Materials Processing Technology59 (1996), No. 3, pp. 257–26710.1016/0924-0136(95)02150-7Search in Google Scholar

5 L.Appel, M.Serve, L.Baum, H.Cramer: Hochwertiges und wirtschaftliches Beschichten mit dem MIG/MAG-Tandem-Auftragsschweißen, Schweißen und Schneiden54 (2002), No. 7, pp. 370–377Search in Google Scholar

6 E.J.Barnhouse, J.C.Lippold: Microstructure/property relationships in dissimilar welds between duplex stainless steels and carbon steels, Welding Journal78 (1998), No. 2, pp. 477–487Search in Google Scholar

7 W.Rosenfeld, H.Cramer: Das MSG Impulsschweißen: Neue technologische Möglichkeiten zur Toleranzbeherrschung, DVS Berichte Band237 (2005), pp. 221–225Search in Google Scholar

8 D.Ochian, I.Mitelea, M.Burcă, I. D.Uţu: Contributions regarding the material selection on endless saw blades, Scientific Bulletin of the „Politehnica“ University of Timişoara, Transactions on Mechanics56 (70) (2011), No. 2, pp. 27–32Search in Google Scholar

9 D.Ochian, I.Mitelea, M.Burcă, I. D.Uţu: Welding process by pressure with intermediate fusion without preheating of endless saw blades, Academic Journal of Manufacturing Engineering10 (2012), No. 1, pp. 84–89Search in Google Scholar

10 H.Granjon: Propos metallurgiques sur le soudage: III: La dilution en soudage – application aux soudures homogenes et heterogenes, Souder4 (1992), pp. 3–6Search in Google Scholar

Published Online: 2013-12-11

Published in Print: 2013-11-15

You are currently not able to access this content.

Articles in the same Issue

https://doi.org/10.3139/120.110514