Open AccessExperimental study and FEM analysis of forward hot dieless spinning
Author(s) -
M. Sedighi,
Iraj Jalili,
Mehdi Kasaeian-Naeini
Publication year - 2018
Publication title -
mechanics and industry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.256
H-Index - 18
eISSN - 2257-7777
pISSN - 2257-7750
DOI - 10.1051/meca/2018034
Subject(s) - spinning , tube (container) , materials science , finite element method , conical surface , work (physics) , mechanics , process (computing) , composite material , mechanical engineering , structural engineering , engineering , physics , computer science , operating system
In this study, the forward hot dieless spinning method is employed in order to fabricate conical tubes using thick aluminum. The process is first examined numerically and then verified by an experimental work. In the numerical study, a 3-D dynamic explicit model is used to solve a common problem in the modeling of the spinning process, the tube is fixed and the roller rotates around the tube. The strain distribution in the tube at various forming passes is studied. The numerical results show that the circumferential strain distribution in different positions of the tube has a negative value whose value increases toward the free end of the tube. Besides, the results indicate that the hardness of the sample increases by about 18% due to the hot dieless spinning process and such a hardness augmentation is obvious along the thickness of the formed tube.