ABSTRACT Sheet metal forming (SMF) simulations are traditionally carried out with rigid active forming surfaces. This means that the elasticity and dynamics of presses and die structures are ignored. The only geometries of the tools included in the simulations are the active forming surfaces. One reason for this simplification is the large amount of computational […]
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ABSTRACT In sheet metal stamping, the occurrence of strain localization in a deformed sheet is considered a failure. As so, sheet metal’s formability is conventionally evaluated using the Forming Limit Diagram (FLD), which separates the principal strain space into safety and unsafety regions by a Forming Limit Curve (FLC). This study presents an evaluation method […]
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Alexander Barlo presented his licentiate thesis entitled “Failure Prediction of Complex Load Cases in Sheet Metal Forming: Emphasis on Non-Linear Strain Paths, Stretch-Bending and Edge Effects” in front of an +50 people hybrid audience of online listeners and physically present people. Alex made a popular presentation of the background of his research and the findings […]
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Abstract Blanked edge surfaces are rough and hardened. They therefore lead to inhomogeneous deformation on the edge, which can trigger localization within the shear affected zone (up to few mm from the edge). The size and extent of these phenomena are primarily a function of the shearing process and are only marginally coupled to the […]
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Abstract Ability to predict and control involved parameters and hence the outcome of sheet metal forming processes demand holistic knowledge of the product/-process parameter influences and their contribution in shaping the output product quality. Recent improvements in the ability to harvest inline production data and the capability to understand complex process behaviour through computer simulations […]
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Concluding remarks and results Public report here PREDICT has generated results and tools that are used to increase reliability of failure prediction of sheet metal forming simulation in finite element models (FE-model). The work in this project was focused to accurately model the effect of complex load cases like non-linear strain path (NLSP), stretch-bending and […]
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BTH får drygt 6,5 miljoner kronor av Vinnova för arbetet att förutse och förhindra sprickor som uppstår vid plåtformning
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Together with Volvo Cars (Olofström), Telenor Connexion and Blue Science Part as coordinator, a research and application project has been carried out within the “Test arena Blekinge” with the aim of transforming theory into practically applicable knowledge in Industry 4.0. Industrial digitalisation has been going on since the 1990s, and with the development of the […]
Read More Tillsammans med Volvo Cars (Olofström), Telenor Connexion och Blue Science Part som koordinator har ett forsknings- och tillämpningsprojekt utförts inom “Test-arena Blekinge” med syfte att omvandla teori till praktisk tillämpbar kunskap inom Industri 4.0. Den industriella digitaliseringen har pågått sedan 90-talet och med senaste decenniets utveckling av “sakernas Internet” eller Internet of Things så öppnar […]
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Förstudien kommer att handla om hur ett “Center of excellence” inom området stamping ska utformas och etableras i Olofström/Blekinge. Förstudiens mål är att arbeta fram en komplett verksamhetsplan för hur detta “Center of Excellence” ska utformas och etableras. PROJEKTINFORMATION BTH project leader: Prof Tobias Larsson Time span: 20180903-20190531 Funding: 800 kSEK (400 Tillväxtverket, ERUF) Partners: Blekinge Tekniska Högskola Olofströms […]
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