ISSN: 1402-1544 ISBN 978-91-86233-XX-X Se i listan och fyll i siffror där kryssen är DOCTORA L T H E S IS Department of Applied Physics and Mechanical Engineering Division of Solid Mechanics Concepts for Hot Sheet Metal E v ISSN: 1402-1544 ISBN 978-91-7439-046-9 a- L is Forming of Titanium Alloys Luleå University of Technology 2009 O d e n b e r g e r C o n c e p t s f o r H o t S h e e t M e t Eva-Lis Odenberger a l F o r m i n g o f T i t a n i u m A llo y s Concepts for Hot Sheet Metal Forming of Titanium Alloys Eva-Lis Odenberger Division of Solid Mechanics Department of Applied Physics and Mechanical Engineering Luleå University of Technology SE-971 87 Luleå, Sweden Doctoral Thesis 1 Copyright © Eva-Lis Odenberger, 2009 Printed by Universitetstryckeriet, Luleå 2009 ISSN: 1402-1544 ISBN 978-91-7439-046-9 Luleå (cid:17)(cid:15)(cid:15)(cid:24) www.ltu.se To my family 3 4 Preface This work has been carried out partly at the Division of Solid Mechanics, Department of Applied Physics and Mechanical Engineering at Luleå University of Technology and partly at Industrial Development Centre in Olofström AB, Sweden. I am very grateful to my supervisor, Professor Mats Oldenburg for his initiation of this research project and for his support and guidance during this work. I would like to thank my former co-supervisor, Dr Bengt Wikman, for his advice, guidance and help. Thank you colleagues and friends at the division of Solid Mechanics and at Industrial Development Centre, for contributing to such pleasant research and development work. My co-workers in the appended papers deserve very special thanks. Dr Mikael Jansson at Engineering Research AB for your invaluable dedication, guidance and contribution. Also, Dr Robert Pedersen at Volvo Aero Corporation and Luleå University of Technology, Mr Jörgen Hertzman at Industrial Development Centre and colleagues at the LFT in Erlangen Nuremberg, Germany, for contributing to the research work regarding titanium metallurgy and material testing. I am especially grateful to research assistant Mr Jan Granström for his help during the performance of the sheet metal forming tests presented in Paper B. Also, to my co-workers at Industrial Development Centre for their help in the manufacturing and test procedure of the hot forming tools presented in paper C to F, Mr Peter Axelsson, Mr Jukka Rajalampi and Mr Per Thilderkvist, among others. Your help has been invaluable. I would also like to acknowledge co- workers at Volvo Aero Corporation, for their contribution to my work and for the fruitful discussions we have had. Finally, I would like to express my deepest and dearest gratitude to my beloved family, my husband Torbjörn and my wonderful children Alva and Sixten, for always being there. Also to my mother, Maj-Lis. I wouldn’t have made it without your support. Luleå, December, 2009 Eva-Lis Odenberger i ii Acknowledgements The research founding by VINNOVA (Swedish Agency for Innovation Systems), grant P22122-1A and 2007-00288 are gratefully acknowledged. iii iv