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  • 1.
    De Goey, Heleen
    et al.
    RISE, Swerea, IVF. Jönköping University, Sweden.
    Engström, Dan
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Lennartsson, Martin
    Jönköping University, Sweden.
    Linderoth, Henrik
    Jönköping University, Sweden.
    Design Thinking as Facilitator for Sustainable Innovation: Exploring Opportunities at SMEs in the Swedish Wood Products Industry2015In: Proceedings of the 20th International Conference on Sustainable Innovation, 2015Conference paper (Refereed)
    Abstract [en]

    Design thinking (DT) is the application of design practice as an approach to innovate and initiate change. Recently, DT has received increasing attention as an approach to address sustainability challenges. However, this area is less studied. The purpose of this study was to explore how DT could enable small and medium-sized enterprises (SMEs) in the Swedish wood products industry to create more sustainable offers. Various actors from this industry have identified the need to develop sustainable offers, although few discuss how this is realized. Interviews have been conducted with six SMEs to increase understanding on challenges they perceive with developing sustainable products. Current practice is compared to potential benefits of DT described in literature. Three main benefits of DT for SMEs have been identified. It could enable SMEs [1] to redefine the purpose of their offers, [2] to better address needs and [3] to address conflicting requirements regarding sustainability.

  • 2.
    Fasth Berglund, Åsa
    et al.
    Chalmers Tekniska Högskola.
    Harlin, Ulrika
    RISE - Research Institutes of Sweden, Materials and Production, IVF. Chalmers Tekniska Högskola.
    Mattsson, Sandra
    RISE, Swerea, IVF. Chalmers Tekniska Högskola.
    Groth, Cecilia
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Åkerman, Magnus
    Chalmers Tekniska Högskola.
    Gullander, Per
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Creatinga structured MEETing arena for knowledge-sharing2014Conference paper (Other academic)
    Abstract [en]

    This paper aims to describe how to create and structure a meeting arena bycombining organisation structure and information structure; this will be used in orderto create an innovative and creative arena for knowledge sharing and problemsolving within the company. The model is exemplified by four industrial casestudies.Results reveal that most of the companies do not have any standards forinformation- or knowledge sharing, most improvement potentials are seen instructuring and storing the right information (IS), aiming from tacit towards explicitknowledge (OS) and this could be done by structuring the questions in the OS-M-ISmodel and by creating innovative and creative meeting arenas.

  • 3.
    Gullander, Per
    et al.
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Fast- Berglund, Åsa
    Chalmers University of Technology.
    Harlin, Ulrika
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Mattsson, Sandra
    RISE, Swerea, IVF. Chalmers University of Technology.
    Groth, Cecilia
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Åkerman, Magnus
    Chalmers University of Technology.
    Stahre, Johan
    Chalmers University of Technology.
    The innovative glue between the organization system and information system2014Conference paper (Other academic)
  • 4.
    Gullander, Per
    et al.
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Mattsson, Sandra
    RISE, Swerea, IVF.
    Fässberg, Tommy
    Van Landeghem, Hendrik
    Zeltzer, Luiza
    Limère, Veronique
    Aghezzaf, El-Houssaine
    Stahre, Johan
    Comparing Two Methods to Measure Assembly Complexity From An Operator Perspective2012Conference paper (Other academic)
  • 5.
    Hedlund, Artur
    et al.
    RISE - Research Institutes of Sweden, Materials and Production, IVF. Chalmers University of Technology, Sweden.
    Köhnke, Tobias
    RISE, Swerea, IVF.
    Theliander, Hans
    Chalmers University of Technology, Sweden.
    Coagulation of cellulose-EmimAc-DMSO solutions studied in order to control properties of wet-spun cellulose fibers2016In: The 7th Workshop on cellulose, regenerated cellulose and cellulose derivatives, 2016, p. 49-52, article id 15Conference paper (Other academic)
  • 6.
    Idström, Alexander
    et al.
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Gentile, Luigi
    Lund University, Sweden.
    Gubitosi, Marta
    Lund University, Sweden.
    Olsson, Carina
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Stenqvist, Björn
    Lund University, Sweden.
    Lund, Mikael
    Lund University, Sweden.
    Bergquist, Karl Erik
    Lund University, Sweden.
    Olsson, Ulf
    Lund University, Sweden.
    Köhnke, Tobias
    RISE, Swerea, IVF.
    Wernersson, Erik
    Lund University, Sweden.
    Dissolution of cellulose in tetrabutylammonium acetate/dimethyl sulfoxide2016In: The 7th Workshop on cellulose, regenerated cellulose and cellulose derivatives, 2016, p. 15-18, article id 1Conference paper (Other academic)
    Abstract [en]

    The dissolution of cellulose in tetrabutylammonium acetate (TBAAc)/dimethyl sulfoxide (DMSO) was studied combining experimental and simulation techniques. It was found that the dissolution limit at 40 °C corresponded to a molar ratio close to one acetate per cellulose anhydroglucose units. MD simulations suggested that the acetate ions bind to cellulose by dual hydrogen bonds. This effectively turns cellulose into a polyelectrolyte, attracting the bulky tetrabutylammonium (TBA+ ) counter ions, which prevent close contact between chains in the dissolved state. This hypothesis was tested by 1 Hand 13C-NMR spectroscopy, which confirmed that acetate forms hydrogen bonds to cellulose, and by diffusion NMR spectroscopy, which demonstrated a strong dynamic correlation between bound acetate and tetrabutylammonium in near-quantitative agreement with simulation. The present results suggest that offering hydrogen bonding to the acetate ions is the main driving force for dissolving cellulose and that the TBA+ counter ions form a diffuse layer around the acetate-decorated cellulose chains.

  • 7.
    Mattsson, Sandra
    et al.
    RISE, Swerea, IVF. Chalmers Universitet.
    Fasth, Åsa
    Chalmers Universitet.
    Dencker, Kersin
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Gullander, Per
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Stahre, Johan
    Chalmers Universitet.
    Karlsson, Malin
    Chalmers Universitet.
    Davidsson, Anna
    Volvo Car Corporation.
    Validation of the complexity index method at three manufacturing companies2013Conference paper (Other academic)
  • 8.
    Nilsson, Erik
    et al.
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Oxfall, Henrik
    RISE, Swerea, IVF. Chalmers University of Technology.
    Wandelt, Wojciech
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Rychwalski, R.
    Chalmers University of Technology.
    Hagström, Bengt
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Melt spinning of conductive textile fibers with hybridized graphite nanoplatelets and carbon black filler2013In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 130, no 4, p. 2579-2587Article in journal (Refereed)
    Abstract [en]

    In this study, two different carbon fillers: carbon black (CB) and graphite nanoplatelets (GNP) are studied as conductive fillers for the preparation of conductive polypropylene (PP) nanocomposites. In order to obtain a homogenous dispersion of GNP, GNP/PP composites were prepared by two different methods: solid state mixing (SSM) and traditional melt mixing (MM). The result shows that MM is more efficient in the dispersion of GNP particles compared to SSM method. PP nanocomposites containing only one conductive filler and two fillers were prepared at different filler concentrations. Based on the analysis of electrical and rheological properties of the prepared nanocomposites, it shows that a hybridized composite with equal amounts of GNP and CB has favorable processing properties. Conductive fibers with a core/sheath structure were produced on a bicomponent melt spinning line. The core materials of these fibers are the hybridized GNP/CB/PP nanocomposite and the sheath is pure polyamide. It was found that GNPs were separated during melt and cold drawing which results in the decrease of conductivity. However, the conductivity could partly be restored by the heat treatment. © 2013 Wiley Periodicals, Inc.

  • 9.
    Odenberger, Eva-Lis
    et al.
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Perez Caro, Lluis
    RISE, Swerea, IVF. Luleå University of Technology, Sweden.
    Marth, Stefan
    Luleå University of Technology, Sweden.
    Schill, Mikael
    DYNAmore GmbH, Germany.
    Oldenburg, Mats
    Luleå University of Technology, Sweden.
    Prediction of damage and fracture during forming simulations in Alloy 7182016In: Aerospace Technology Congress 2016: Swedish aerospace technology in a globalised world, 2016Conference paper (Other academic)
  • 10.
    Odenberger, Eva-Lis
    et al.
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Perez Caro, Lluis
    RISE, Swerea, IVF. Luleå University of Technology, Sweden.
    Svensson, Lars-Erik
    University West, Sweden.
    Oldenburg, Mats
    Luleå University of Technology, Sweden.
    Steffenburg-Nordenström, Joachim
    GKN Aerospace, Sweden.
    Comparison of forming, welding and heat treatment simulations in LS-DYNA and MSC Marc2016In: Proceedings of the 10th International Conference on Trends in Welding Research & 9th International Welding Symposium of Japan Welding Society, 2016, p. 660-663Conference paper (Other academic)
    Abstract [en]

    The manufacturing of components for aero engine structures from a flat sheet to the final shape usually requires several steps that may introduce residual stresses and shape distortions in the part. Depending on the magnitude, sign and distribution with respect to the stresses induced by the service load, the remaining stresses may affect the service life of a component, especially when submitted to cyclic loading. Nowadays, several types of software that have the ability to predict the residual stresses and the final shape of a component subjected to various process steps are available. However, literature shows a lack of comparison studies among different software tools for multi-step simulations of a manufacturing process. In this study, the manufacturing process chain of an aerospace component including forming, welding and heat treatment in the nickel-based superalloy 718 is modelled and simulated using the two finite element software codes LS-DYNA and MSC.Marc. The results from the displacement of the blank in the punch stroke direction, the equivalent plastic strain and the von Mises stress are compared between both FE codes. The displacement of the blank after forming is slightly higher in LS-DYNA compared to MSC.Marc, as well as the equivalent plastic strain and the von Mises stress values. This tendency is also observed after trimming and welding. It can also be noted that the distribution of both strains and stresses on the trimmed and welded parts varies between the two compared codes, presumably due to the choice of different solver options, explicit and implicit.

  • 11.
    Olsson, Carina
    et al.
    RISE, Swerea, IVF.
    Hagström, Bengt
    RISE, Swerea, IVF.
    Sjöholm, Elisabeth
    RISE, Innventia.
    Reimann, Anders
    RISE, Innventia.
    Carbon fibres from lignin-cellulose precursor2015In: 18th International Symposium on Wood, Fiber and Pulping Chemistry, September 9-11, 2015, Vienna, 2015, Vol. Poster, p. 126-129Conference paper (Other academic)
    Abstract [en]

    A series of two-component precursor fibres for carbon fibre production has been produced by air-gap spinning of kraft lignin with cellulose as the fibreforming polymer, the latter from paper grade or dissolving grade pulps. The spun precursor fibres,containing 70% lignin and 30% cellulose, demonstrate mechanical properties equivalent to commercial textile fibres. Precursor fibres based on softwood kraft lignin were treated thermally in twosteps to carbon fibres, which had mechanical properties equal to or greater than those reported for neat lignin-based carbon fibres produced by melt spinning. An advantage of the wet-spun precursor fibres developed in this project is that they are more flexible and easier to handle with a decreased risk ofbrittle fracture. The potential for further improvement for the new type of carbon fibre is very high.

  • 12.
    Olsson, Carina
    et al.
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Köhnke, Tobias
    RISE - Research Institutes of Sweden, Materials and Production, IVF.
    Idström, Alexander
    RISE, Swerea, IVF. Chalmers University of Technology, Sweden.
    Gentile, Luigi
    Lund University, Sweden.
    Gubitosi, Marta
    Lund University, Sweden.
    Stenqvist, Björn
    Lund University, Sweden.
    Lund, Mikael
    Lund University, Sweden.
    Bergquist, Karl-Erik
    Lund University, Sweden.
    Olsson, Urban
    Lund University, Sweden.
    Wernersson, E.
    Tetrabutylammonium acetate as a solvent for cellulose2016Conference paper (Other academic)
  • 13.
    Shahbazi, Sasha
    et al.
    Mälardalens högskola .
    Kurdve, Martin
    Bjelkemyr, Marcus
    Mälardalens högskola .
    Jönsson, Christina
    RISE, Swerea, IVF. Mälardalens högskola .
    Wiktorsson, Magnus
    Mälardalens högskola .
    Industrial waste management within manufacturing: A comparative study of Tools, policies, visions and concepts2013Conference paper (Refereed)
  • 14.
    Sterley, Magdalena
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Trey, Stacy
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Lundevall, Åsa
    RISE, Swerea, IVF.
    Olsson, Sara
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Influence of cure conditions on the properties of a one-compenent moisture-cured polyurethane adhesive in the context of green gluing of wood2012In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 126, no S1, p. E297-E304Article in journal (Refereed)
  • 15.
    Stormvinter, A.
    et al.
    RISE, Swerea, IVF.
    Kristofferssen, H.
    RISE, Swerea, IVF.
    Olofsson, A.
    Scania, Sweden.
    Haglund, Sven
    RISE - Research Institutes of Sweden, Materials and Production, KIMAB.
    Biwersi, K.
    Scania, Sweden.
    Effect of hardenability and press quenching on distortion of crown wheels2014In: Thermal Process Modeling - Proceedings from the 5th International Conference on Thermal Process Modeling and Computer Simulation, ICTPMCS 2014 / [ed] Papp R.MacKenzie S.Goldstein R.Ferguson B.L., ASM International , 2014, p. 149-155Conference paper (Refereed)
    Abstract [en]

    Press quenching is used to control distortion of large transmission components, e.g. case hardened crown wheels. The unsystematic distortion arises from non-uniformity in the steel properties and processing conditions and is a major concern for gear manufactures. In the present work a methodology is developed to analyze how various properties and parameters influence the distortion during press quenching of crown wheels. To obtain realistic quenching characteristics, to be used for simulation, a number of experiments are carried out on an industrial press quenching machine. In addition, the distortion potential from hardenability is surveyed on a set of non-press quenched crown wheels and quantified by 3D- scanning. Based on the experimentally obtained quenching characteristics the press quenching process is simulated by FEM. Impact of steel properties, quenching characteristics and processing conditions on the distortion is discussed and analyzed in relation to the experiments. From the results it may be concluded that press quenching is a powerful tool that can limit the impact of distortion carriers. However, to exploit the full capability of press quenching and thereby increase process optimization it is necessary to better quantify the distortion carriers in the parts to be hardened. Copyright © 2014 ASM International ® All rights reserved.

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