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New hydroforming concepts for sustainable fiber material

Huttel, Dominik and Groche, Peter (2014):
New hydroforming concepts for sustainable fiber material.
In: New Developments ind Hydroforming, [Conference or Workshop Item]

Abstract

Paper is a natural renewable fiber material. Its recyclability and biodegradability as well as the renewability of the raw material make it perfect for short time usage. The combination of stiffness, low specific density and toughness explains its success as a packaging material. Its visual and haptic appearance makes it a perfect material for advertisement products. Despite these advantages, research on the formability of paper as a fiber/fibrous material is limited. Optimization of forming processes as well as product geometries based on simulations is currently not established. In the industrial environment, the development of new geometries is largely based on time and cost intensive experimental investigations. The aim of this study is to optimize the forming processes for paper products. The determination of the material behavior in tensile tests and specially developed bulge tests deliver the basic information for this. Furthermore an adapted bulge test with hydrostatic pressure is used to clarify the influence of a counter pressure on the forming behavior. Based on this, an existing hydroforming process for paper is upgraded with a counter pressure module. The resulting new forming process displays the benefits of a hydrostatic pressure as well as a flexible blank holder concept for paper forming. Additionally conducted numerical simulations of the forming process allow further comparison of the original and upgraded forming processes. The results display that an optimization of the forming process for paper can enhance the forming limits as well as that simplified models with anisotropic material laws can describe the forming behavior accurately

Item Type: Conference or Workshop Item
Erschienen: 2014
Creators: Huttel, Dominik and Groche, Peter
Title: New hydroforming concepts for sustainable fiber material
Language: English
Abstract:

Paper is a natural renewable fiber material. Its recyclability and biodegradability as well as the renewability of the raw material make it perfect for short time usage. The combination of stiffness, low specific density and toughness explains its success as a packaging material. Its visual and haptic appearance makes it a perfect material for advertisement products. Despite these advantages, research on the formability of paper as a fiber/fibrous material is limited. Optimization of forming processes as well as product geometries based on simulations is currently not established. In the industrial environment, the development of new geometries is largely based on time and cost intensive experimental investigations. The aim of this study is to optimize the forming processes for paper products. The determination of the material behavior in tensile tests and specially developed bulge tests deliver the basic information for this. Furthermore an adapted bulge test with hydrostatic pressure is used to clarify the influence of a counter pressure on the forming behavior. Based on this, an existing hydroforming process for paper is upgraded with a counter pressure module. The resulting new forming process displays the benefits of a hydrostatic pressure as well as a flexible blank holder concept for paper forming. Additionally conducted numerical simulations of the forming process allow further comparison of the original and upgraded forming processes. The results display that an optimization of the forming process for paper can enhance the forming limits as well as that simplified models with anisotropic material laws can describe the forming behavior accurately

Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
Event Title: New Developments ind Hydroforming
Date Deposited: 17 Feb 2015 11:23
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