[1] M．Geiger,M．Kleiner and R．Echstein:Annals CIRP, 2001,50(2),445．



[2]A．Gillner,D．Hellrung, A．Bayer, F．Schepp and R．Erhardt: Umformtechnisches Kolloquium Darm- stadt,2000,7,107．



[3]M．Geiger and U．Engel:J JSTP,2002,494(43),5．



[4] F．Vollertsen,H．S．Niehoff and Z．Hu:Proc．of the 1st ICNFT,eds．by Z．R．Wang and T．A．Dean,Harbin, China,2004,17．



[5] Y．Saotome,A．Itoh and S．Amada:Proc．of the 4th ICTP,ed．by Z．R．Wang,Beijing,China,1993,2000．



[6] Y．Saotome,K．Imai,S．Shioda,S．Shimizu,T．Zhang and A．Inoue:Intermetallics,2002,10,1241．



[7] Y．Saotome and H．Iwazaki:J．Mater．Process．Tech- nol．,2001,119,307．



[8] F．Schepp:Berichte aus Produktion und Umformtech- nik,Shaker Verlag,Aachen,2002,54．



[9] N．Tiesler,U．Engel and M．Geiger:Proc．of the 6th ICTP,ed．by M．Geiger,Nuremberg,Bavaria,Ger- many, 1999,2,889．



[10]M．Geiger,A．Messner and U．Engel:Prod．Engineer．, 1997,4(1),55．



[11] U．Engel and A．Messner:Wire,1998,2,94．



[12] L．V．Raulea,L．E．Govaert and F．P．T．Baaijens:Proc．of the 6th ICTP,ed．by M．Geiger,Nuremberg, Bavaria,Germany,1999,2,939．



[13] T．A．Kals and R．Eckstein:J.Mater．Process．Tech- nol．,2000,103,95．



[14]P．Picard and J．F．Michel:Proc．of the 6th ICTP,ed．by M．Geiger,Nuremberg,Bavaria,Germany,1999,2, 895．



[15] N．Tiesler,U．Engel and M．Geiger:Proc．of,the 7th ICTP,eds．by M．Kiuchi,H．Nishimura and J．Yanagimoto,Yokohama,Japan,2002,1,379．



[16]F．Vollertsen,Z．Hu,H．S．Niehoff and C．Theiler: J．Mater．Process．Technol．,2004,151,70．



[17] T．Masuzawa:Annals CIRP,2000,49(2),473．



[18] C．Wang,D．Shan,B．Guo and L．Sun:Proc．of the 8th ICTP,ed．by P．F．Bariani,Verona,Italy,2005,457．



[19] H．Yasin,H．M．Zbib and M．A．Khaleel: Mater．Sci．Eng．,2001,309-310,294．



[20] H．Margolin:Acta Mater．,1998,17,6305．