Measures for controlling the material flow when extruding sheet-bulk metal forming parts from coil

The increasing demand for lightweight design requires functional integration. This poses challenges to conventional manufacturing processes due to the rising geometrical complexity of components. The application of bulk forming operations to sheet metal, named sheet-bulk metal forming (SBMF), is one...

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Main Authors: Henneberg Johannes, Merklein Marion
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:Manufacturing Review
Subjects:
Online Access:https://mfr.edp-open.org/articles/mfreview/full_html/2020/01/mfreview200036/mfreview200036.html
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author Henneberg Johannes
Merklein Marion
author_facet Henneberg Johannes
Merklein Marion
author_sort Henneberg Johannes
collection DOAJ
description The increasing demand for lightweight design requires functional integration. This poses challenges to conventional manufacturing processes due to the rising geometrical complexity of components. The application of bulk forming operations to sheet metal, named sheet-bulk metal forming (SBMF), is one approach to overcome these challenges. Currently, mainly pre-cut blanks are applied in research of SBMF. Production from coil, in contrast, would combine the advantages of SBMF with the advantages of manufacturing from a coil regarding high output quantity. To research SBMF from coil, a lateral and a backward extrusion process are set up. In addition to a reduced geometrical accuracy of the parts, which is known from SBMF of pre-cut blanks, an anisotropic material flow is identified as a coil-specific challenge. The aim of this research is to investigate measures that extend the forming limits by means of a material flow control. For this purpose, a combined numerical-experimental approach is applied in order to analyze and evaluate an adaption of the width of the coil, the feed width, and the local friction as measures for material flow control. Particularly local adaptation of friction by means of modified tool surfaces reduces the anisotropic material flow and improves the geometrical accuracy of the parts.
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spelling doaj.art-6af4b5f7338f4c62b9d9183dd21aa23e2022-12-21T18:38:38ZengEDP SciencesManufacturing Review2265-42242020-01-0173610.1051/mfreview/2020033mfreview200036Measures for controlling the material flow when extruding sheet-bulk metal forming parts from coilHenneberg Johanneshttps://orcid.org/0000-0003-3848-3047Merklein Marionhttps://orcid.org/0000-0003-0609-7301The increasing demand for lightweight design requires functional integration. This poses challenges to conventional manufacturing processes due to the rising geometrical complexity of components. The application of bulk forming operations to sheet metal, named sheet-bulk metal forming (SBMF), is one approach to overcome these challenges. Currently, mainly pre-cut blanks are applied in research of SBMF. Production from coil, in contrast, would combine the advantages of SBMF with the advantages of manufacturing from a coil regarding high output quantity. To research SBMF from coil, a lateral and a backward extrusion process are set up. In addition to a reduced geometrical accuracy of the parts, which is known from SBMF of pre-cut blanks, an anisotropic material flow is identified as a coil-specific challenge. The aim of this research is to investigate measures that extend the forming limits by means of a material flow control. For this purpose, a combined numerical-experimental approach is applied in order to analyze and evaluate an adaption of the width of the coil, the feed width, and the local friction as measures for material flow control. Particularly local adaptation of friction by means of modified tool surfaces reduces the anisotropic material flow and improves the geometrical accuracy of the parts.https://mfr.edp-open.org/articles/mfreview/full_html/2020/01/mfreview200036/mfreview200036.htmlextrusionsheet metalcold formingsheet-bulk metal formingmaterial flow control
spellingShingle Henneberg Johannes
Merklein Marion
Measures for controlling the material flow when extruding sheet-bulk metal forming parts from coil
Manufacturing Review
extrusion
sheet metal
cold forming
sheet-bulk metal forming
material flow control
title Measures for controlling the material flow when extruding sheet-bulk metal forming parts from coil
title_full Measures for controlling the material flow when extruding sheet-bulk metal forming parts from coil
title_fullStr Measures for controlling the material flow when extruding sheet-bulk metal forming parts from coil
title_full_unstemmed Measures for controlling the material flow when extruding sheet-bulk metal forming parts from coil
title_short Measures for controlling the material flow when extruding sheet-bulk metal forming parts from coil
title_sort measures for controlling the material flow when extruding sheet bulk metal forming parts from coil
topic extrusion
sheet metal
cold forming
sheet-bulk metal forming
material flow control
url https://mfr.edp-open.org/articles/mfreview/full_html/2020/01/mfreview200036/mfreview200036.html
work_keys_str_mv AT hennebergjohannes measuresforcontrollingthematerialflowwhenextrudingsheetbulkmetalformingpartsfromcoil
AT merkleinmarion measuresforcontrollingthematerialflowwhenextrudingsheetbulkmetalformingpartsfromcoil