Analysing metal working processes

Document identifier: oai:dalea.du.se:2620
Keyword: Metal working, Plastic forming, Flow stress
Publication year: 2005
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Abstract:

Metal working processes encompass a wide range of strain, strain rates and temperatures. Strains range from less than 0.01 (for example in skin-pass rolling of interstitial free steel) up to around 1 (cold rolling of strip, extrusion, etc.). Typical strain rates and temperatures are given in Table 11.1 (which is partly an extract from Frost and Ashby (1982). For plastic forming processes the most important characteristics of the material are: the ability to distribute strains; the deformation resistance; and the resulting properties of the formed part. The ability to distribute strains is mainly governed by the work hardening and strain-rate sensitivity. It is also affected by the strain path. The purpose of this paper is to outline the, in our view, most essential material properties for metal working processes and the microstructural reasons for them. We recognise that the presence and development of crystallographic texture is quite an important part but our purpose is not to give an extensive description of this, only to point out some consequences. For further reading we recommend a book by Kocks, Tomé and Wenk (1998). Another aspect that is only briefly covered is the influence of stress states and changes in strain paths during processing or between consecutive process steps.

Authors

Göran Engberg

Högskolan Dalarna; Materialvetenskap
Other publications >>

Lars Karlsson

Högskolan Dalarna; Materialvetenskap
Other publications >>

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        identifier: oai:dalea.du.se:2620
        datestamp: 2021-04-15T12:36:50Z
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                recordContentSource: du
                recordCreationDate: 2007-04-01
            identifier: http://urn.kb.se/resolve?urn=urn:nbn:se:du-2620
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Analysing metal working processes
            abstract: 
Metal working processes encompass a wide range of strain strain rates and temperatures. Strains range from less than 0.01 (for example in skin-pass rolling of interstitial free steel) up to around 1 (cold rolling of strip extrusion etc.). Typical strain rates and temperatures are given in Table 11.1 (which is partly an extract from Frost and Ashby (1982).\nFor plastic forming processes the most important characteristics of the material are:\n the ability to distribute strains;\n the deformation resistance; and\n the resulting properties of the formed part.\nThe ability to distribute strains is mainly governed by the work hardening and strain-rate sensitivity. It is also affected by the strain path.\nThe purpose of this paper is to outline the in our view most essential material properties for metal working processes and the microstructural reasons for them. We recognise that the presence and development of crystallographic texture is quite an important part but our purpose is not to give an extensive description of this only to point out some consequences. For further reading we recommend a book by Kocks Tomé and Wenk (1998). Another aspect that is only briefly covered is the influence of stress states and changes in strain paths during processing or between consecutive process steps.

            subject: 
                    @attributes: 
                        lang: eng
                    topic: metal working
                    @attributes: 
                        lang: eng
                    topic: plastic forming
                    @attributes: 
                        lang: eng
                    topic: flow stress
            language: 
                languageTerm: eng
            genre: 
                publication/book-chapter
                vet
            note: 
                Published
                2
            name: 
                    @attributes: 
                        type: personal
                        authority: du
                    namePart: 
                        Engberg
                        Göran
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Högskolan Dalarna
                        Materialvetenskap
                    nameIdentifier: gen
                    @attributes: 
                        type: personal
                        authority: du
                    namePart: 
                        Karlsson
                        Lars
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Högskolan Dalarna
                        Materialvetenskap
                    nameIdentifier: lmk
            originInfo: 
                dateIssued: 2005
                publisher: Woodhead Publishing ltd
                place: 
                    placeTerm: Cambridge
            relatedItem: 
                @attributes: 
                    type: host
                titleInfo: 
                    title: Fundamentals of metallurgy
                part: 
                    extent: 
                        start: 453
                        end: 470
                identifier: 978-1-85573-927-7
            physicalDescription: 
                form: print
            typeOfResource: text