Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life

Bibliographic Details
Main Author:	Gram, Michael D.
Language:	English
Published:	The Ohio State University / OhioLINK 2010
Subjects:	Materials Science fineblanking shearing high strength steels finite element modeling cutting force Voce Hollomon
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=osu1280869210

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spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-osu12808692102021-08-03T06:00:16Z Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life Gram, Michael D. Materials Science fineblanking shearing high strength steels finite element modeling cutting force Voce Hollomon In order to assess the possibility of fineblanking high strength steels while preserving acceptable tool lifetimes, materials with a wide range of ultimate tensile strengths (200-1500MPa) were fineblanked experimentally and simulated with finite element modeling. Good agreement was achieved and a refined relationship between cutting force and material strength was discovered. The strain at which the cutting force is maximized was shown to be several times greater than the uniform tensile strain, suggesting the concept of manipulating material strain hardening properties to increase material strengths markedly while maintaining acceptable tool stress levels and thus lifetimes. The concept was shown viable using finite element simulations. The results show the need for steels optimized for fineblanking applications. They will have almost opposite properties of advanced high strength steels, which are optimized for sheet formability by increasing their strain hardening at large strains. 2010-09-28 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1280869210 http://rave.ohiolink.edu/etdc/view?acc_num=osu1280869210 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection	NDLTD
language	English
sources	NDLTD
topic	Materials Science fineblanking shearing high strength steels finite element modeling cutting force Voce Hollomon
spellingShingle	Materials Science fineblanking shearing high strength steels finite element modeling cutting force Voce Hollomon Gram, Michael D. Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life
author	Gram, Michael D.
author_facet	Gram, Michael D.
author_sort	Gram, Michael D.
title	Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life
title_short	Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life
title_full	Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life
title_fullStr	Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life
title_full_unstemmed	Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life
title_sort	fineblanking of high strength steels: control of materials properties for tool life
publisher	The Ohio State University / OhioLINK
publishDate	2010
url	http://rave.ohiolink.edu/etdc/view?acc_num=osu1280869210
work_keys_str_mv	AT grammichaeld fineblankingofhighstrengthsteelscontrolofmaterialspropertiesfortoollife
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Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life

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