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Comparison on the Forming Force of Flow Forming with Various Roller Profiles  

Nam, Kyoung-O (한국원자력연구원)
Kim, Bum-Nyun (한국전력연구원)
Won, Jong-Ho (충남대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.16, no.4, 2007 , pp. 113-118 More about this Journal
Abstract
The flow forming has been used to produce long thin walled tube parts, with the reduced fanning force and the enhanced mechanical and surface quality for a good finished part, compared with the fanned parts using other method. Therefore, flow fanning technique is used widely in industrial production. Spinning and flow fanning techniques are used frequently in automotive, aerial and defense industries. The main factors for the flow fanning machine design are motor power, bed rigidity, mandrel stiffness, spindle power, roller profile, etc. Especially, mandrel, spindle power and roller are important factors for flow fanning machine capacity. In this paper, three dimensional finite element method for analysis of one-roller backward flow fanning of a workpiece has been carried out to study effects of roller profile on fanning force. Applied roller profile have roller lead geometries of angle $20^{\circ},\;30^{\circ},\;40^{\circ}$, concave and convex. Axial and radial fanning forces on various roller profiles are obtained and compared with each analysis cases.
Keywords
Flow Forming; Spinning; Roller Profile; Finite Element Method; Backward Flow Forming; Forming Force;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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