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Experiments and FE-simulations of stretch flanging of DP-steels with different shear cut edge quality

ABSTRACT Dual-Phase (DP) steels are today used in the automotive industry due to its large strength to weight ratio. However, the high strength of DP-steel does have a negative impact on the general formability in sheet metal forming. Unfavourable process conditions in the press shop will, on top of this, reduce the formability of DP-steels […]

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Framework for Simulation-Driven Design of Stamping Dies Considering Elastic Die and Press Deformations

ABSTRACT Sheet metal forming (SMF) simulations are used extensively throughout the development phase of industrial stamping dies. In these SMF simulations, the die and press are normally considered as rigid. Previous research has however shown that elastic deformation in these parts has a significant negative impact on process performance. This paper demonstrates methods for counteracting […]

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Simulation-Driven Design Approach for Design and Optimization of Blankholder

 ABSTRACT Reliable design of stamping dies is desired for efficient and safe production. The design of stamping dies are today mostly based on casting feasibility, although it can also be based on criteria for fatigue, stiffness, safety, economy. Current work presents an approach that is built on Simulation Driven Design, enabling Design Optimization to address […]

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Techtank Expo @ BTH

On May 16, 2017, BTH had the pleasure of hosting the first ever Techtank Expo, where students, teachers and researchers got the chance to explore collaboration opportunities with representatives from Techtank member companies. Techtank Advanced Engineering Alliance is a technology cluster in southern Sweden (with the cluster organization based in Olofström) which gathers advanced industrial and […]

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Studiebesök på Wugang och Volvo i Olofström

I november besökte jag och mina kinesiska studenter, doktorander och forskare från BTH Wugang Tailored Blanks Sverige AB och Volvo Personvagnars karossfabrik i Olofström som en del i min kurs Datorstöd inom konstruktion i syfte att få en bra koppling mellan designprocessen som konstruktör och tillverkning.

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Besök vid Volvo Car Body Components

I samband med Institutionen för Maskintekniks (TIMA) sista personalmöte för året genomfördes ett studiebesök vid Volvo Car Body Components i Olofström. Dr. Mats Sigvant, teknisk expert inom plåtformning, hälsade oss välkomna och beskrev utvecklingen från bysmedja år 1735 till dagens avancerade och omfattande pressning av karossdetaljer samt framtagning av pressverktyg. Volvo Car Body Components levererar […]

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