NDLI: Research on the process of flexible blank holder in multi-point forming for spherical surface parts

Content Provider	Springer Nature Link
Author	Liu, Yajie Li, Mingzhe Ju, Feifei
Copyright Year	2016
Abstract	The technology of flexible blank holder (FBH) in multi-point forming (MPF) is a novel forming process for spherical surface parts, which is proposed based on the flexible method. According to the mechanical characteristics of the forming parts as well as the stress and strain state, the forming parts with good quality are obtained by reasonable distribution of the blank holder block and different blank holder force (BHF) at different locations. An original rigid FBH device is designed. Finite element analysis models of flexible blank holder (FBH) and no blank holder (NBH) are established, spherical surface parts with different BHF are simulated and then acquired the optimal BHF. The results indicate that FBH forming technology can avoid wrinkling defects effectively, the stress and strain are smaller and distribute uniformly, sheet metal flow is more uniform, and thickness distribution is more reasonable. Finally, a series of experiments of 08Al and 1060 with different thickness are completed in MPF dies to confirm the feasibility and versatility of the FBH device.
Starting Page	2315
Ending Page	2322
Page Count	8
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	89
Issue Number	5-8
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2016-08-11
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Flexible blank holder Multi-point forming No blank holder Numerical simulation Wrinkle Industrial and Production Engineering Media Management Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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