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  • 101.
    Stefan, Ioana
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Niss, Camilla
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    The effects of appropriability on firm performance: the moderating effect of openness breadth2016Conference paper (Refereed)
  • 102.
    Stefan, Ioana
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    von Haartman, Robin
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Patents in Logistics2016Conference paper (Other academic)
  • 103.
    Stefan, Ioana
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production. KTH, Industriell ekonomi och organisation .
    Hurmelinna-Laukkanen, Pia
    University of Oulu, Finland.
    Vanhaverbeke, Wim
    Hasselt University, Belgium.
    Coping with tensions in open innovation: challenges and solutions to co-create and capture value2018In: Article in journal (Refereed)
  • 104.
    Stenström, Jacob
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Konstruktion av fjärrvärmeledning på Carlsborgs kraftvärmeverk2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Due to the replacement of a distribution pump in a public district heating plant, the dimensioning of the piping system has been analyzed. The specifications and standards controlling the system design are summarized in Connection with the PED directive (Pressure Equipment directive). The report also contains evaluation of two methods for measuring the existing piping system –  laser scanning and manual measurement with laser by hand.  A commercial software (CAE-pipe) is used for calculation and analysis on the system. The new system is analyzed based on the impact of weight, pressure, and thermal expansion, on the loads and torques, affecting the inlet- and outlet flanges of the pump. In addition the stresses in the most critical nodes of the system are calculated. The need of reinforcements of the piping system, using additional fixed supports, is verified.

  • 105.
    Strömberg, Annika
    University of Gävle, Department of Business Administration and Economics, Ämnesavdelningen för företagsekonomi.
    Förmågor i samverkan: byggherrekompetens ur ett processperspektiv2005Licentiate thesis, monograph (Other academic)
  • 106.
    Sundlöf, Tom
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Mechanical Engineering.
    Svärdström, Thomas
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Mechanical Engineering.
    Haveriutredning av flissåll-1 vid BillerudKorsnäs i Gävle2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    At the production site in Gävle, Sweden, BillerudKorsnäs produces liquid carton for packaging food and beverages and liners used in cardboard boxes. For this manufacturing process pulp is used that is extracted from wood chips. In the production process the wood chips are separated in two different sieves, Sieve 1 and Sieve 2. During several years, Sieve 1 has had a record of failures of bolted joints and cracks in welded components. The aim of this investigation is to increase the production availability of Sieve 1, with the goal to identify the causes behind the frequent failure record, and then present actions to increase the life span of the mentioned components.  The methods used in this investigation is initially consisting of collecting data in order to get the basic knowledge and understanding of the sieve and its problems. Thereafter the theory that involves the use of bolted joints and welds to understand general construction principles about the mentioned areas. To be able to apply these theories an inspection of sieve 1, has been necessary to identify constructional shortcomings. The other sieve, Sieve 2, has not had the same failure record. Therefore the differences between the two sieves has been evaluated.  The methods has resulted in the identification of some shortcomings regarding the bolted joints and its clamping lengths, and the paint coating that the whole construction is covered with. Another aspect is the friction in the contact areas of the bolt threads and under the bolt head, which in some cases may lead to that the applied torque does not give enough pretension to the bolt.  Adjacent to the welds where cracks occur, unfavorable dimensional transitions are detected where stress concentrations can occur. These flaws along with a suspected overload due to chip masses that add extra weight to the construction are considered to be the underlying causes of the frequent damage history and thus the inferior availability.  The measures estimated to increase accessibility are to increase the clamping length in screw joints, design all screw joints without any paint layer in its contact surfaces. Reduce the risk of overload by avoiding chip masses in the construction. Enable a more even production between the sieves. Design without sudden dimensional transitions.

  • 107.
    Sundström, Agneta
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies, Business administration.
    Sammalisto, Kaisu
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Gyll, Janna
    Fiber Optic Valley, Hudiksvall, Sweden.
    Developing social sustainability for innovative industrial work environments2015Conference paper (Refereed)
  • 108.
    Svedlund, Henrik
    et al.
    University of Gävle, Department of Technology and Built Environment.
    Svensson, Marie
    University of Gävle, Department of Technology and Built Environment.
    Skapandet av ett integrerat ledningssystem2008Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    To be able to compete on the market environmental Management System has become an important part of operations work. However, many companies still haven’t implemented an environmental management systems due to lack of time and the high costs. One of the companies with this problem is Falu Bildemontering. Their goal is to accredited according to the ISO 14 001 certificate. One step on the way is to get the SBR license, Sveriges Bildemonterings Riksförbunds license.

    The purpose of this report is to create a method for the creation of an integrated system that regards an organisations processes and environmental work. By doing this the enviromental work can be implemented in the every day work.

    The report and the study is created through a study of relevant literature from which a model has been created. The model has then been tested and evaluated at Falu Bildemontering.

    The first activity that is conducted in the work towards an integrated system is to map the organisations processes. A flow chart is created to get an overview. The second step is to analyze the different processes with the goal to upgrade them. This is performed by process development and with a stepwise model created by Aronsson. To be able to integrate the system in the every day work a comparison between the different management systems is done. The most efficient way to perform this is to have a living document where the newly developed processes are written down.

    The final goal with an integrated system is to create a simple, efficient and enviromental adapted process where the organistaions sections are being brought together. The result can yield bigger profits and decreasing costs.

  • 109.
    Söderberg, Lennart
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för industriell ekonomi. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för industriell ekonomi. University of Gävle, Center for Logistics and Innovative Production.
    Supply Chain Management Maturity and Performance in SME2009In: Proceedings of the 16th International Annual EurOMA Conference, 14-17 June 2009, Göteborg., 2009Conference paper (Refereed)
  • 110.
    Söderberg, Lennart
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Kaulio, Matti
    Industriell ekonomi och organisation, Royal Institute of Technology, Stockholm, Sweden.
    A model for outsourcing and governing of maintenance within the process industry2017In: Operations Management Research, ISSN 1936-9735, E-ISSN 1936-9743, Vol. 10, no 1, p. 20-32Article in journal (Refereed)
    Abstract [en]

    Many industrial firms motivate structural changes by an increased focus on core activities and reduced ownership of non-core activities. However, classifying maintenance activities as either core or non-core can be difficult, since maintenance is a support function strongly linked to the production core within a manufacturing firm. Based on a multiple case study that included four buying firms and four suppliers within the process industry, this paper investigates how the relative capabilities of the firms affect the governance decision about maintenance outsourcing. A conceptual framework built on a distinction between core-close and core-distant maintenance and between different maintenance capabilities is presented. The subsequent empirical analysis illustrates how the developed framework can be used for both analyzing and guiding firms’ decisions about outsourcing and governance regarding maintenance.

  • 111.
    Visuri, Mikael
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Utveckling av användningsområden för koldioxidlasermaskiner: En fallstudie på PEPAB Produktionspartner AB2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In recent years, new more cost-effective production techniques in material processing with lasers has been developed. Due to this, more conventional laser techniques such as the carbon dioxide laser has got though competition in laser cutting of thin sheet metal. PEPAB Produktionspartner AB has two laser machines with carbon dioxide laser sources. These machines have been used, almost exclusively, for 2D laser cutting of thin sheet metal. The company is investing in new, more cost-effective equipment for the 2D laser cutting of sheet metal. They are looking for other applications that could make the machines more profitable. The purpose of this thesis was to search for other opportunities to utilize the machines. The aim of the thesis was to identify and evaluate what applications, other than the 2D laser cutting of sheet metal, that could be performed in the company’s two laser cells.

    To help achieve the aim of the thesis, a work model for development of machine applications was produced. The content and design of the work model is based on a theoretical framework that consists of relevant literature. The four-step work model was then applied at the company where the first step was to describe the current situation. In the second step the company´s intention is identified. Step three focuses on the search for other applications that could be performed in the machines. These are then analyzed with respect to the impact on several factors such as quality, economic consequences and worker safety. In the fourth step, recommendations are given to the company.           

    The work has resulted in four alternative applications for the future utilization of the machines. Furthermore, another way to create customer benefit has been identified. By forming a fast track for laser cutting and offering customers high delivery service at a higher pricing holds potential to make the machines more profitable. Recommendations regarding each of the alternatives have been given to the company. In addition to this, the work model has proven to work well in the development of machine applications and made sure that focus was on the right things in the right order.

  • 112.
    von Haartman, Robin
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för industriell ekonomi.
    External integration and the need for manufacturing competence2007Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    For a number of years, manufacturers have increasingly focused on their perceived core competencies and outsourced activities not seen as such. In doing so there are an increasing number of competencies that fall outside the ‘core’ domain but are nonetheless required for effective product and process development. The proposed solution to this problem has been external integration with an emphasis on collaborative product or process development and also the wider concept of supply chain management. It is, however, not always easy to substitute internal competencies with customers’ and suppliers’ capabilities. Many authors have focused on finding the prerequisites for effective external integration and particularly on areas such as trust and power.

    This thesis contributes to the literature by extending the concept of absorptive capacity into the manufacturing domain and in the context of external integration. A conceptual framework is developed, where different streams of the literature have been merged into one coherent model. Integral parts of this framework are the concept of absorptive capacity as well as a model of competitive priorities. Competitive priorities have been taken into account as firms differ; what contributes to competitive advantage for one firm may be irrelevant for another.

    Three papers are included in the thesis. The first one uses survey data, from a representative sample of the Swedish manufacturing industry, in order to validate the concept of absorptive capacity in the manufacturing sector. The second paper also uses survey data but aims to shed some light on competitive priorities’ impact on both the extent and the outcome of internal and external integration. The third paper describes a case study of a first-tier supplier and aims to illustrate how absorptive capacity in a manufacturing firm may look in practice.

    The thesis concludes that the conceptual framework is indeed useful for understanding the challenges of effective external integration. Internal manufacturing competencies may allow a firm to integrate more effectively external sources, but the required competencies may vary from firm to firm. This implies a need for a fit between companies’ competitive priorities, external integration and absorptive capacity. It also implies that companies may struggle to achieve competitive advantage by utilising their customers and suppliers if they do not simultaneously develop appropriate competencies in-house.

  • 113.
    von Haartman, Robin
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Tillverkningskompetens: en förutsättning för innovativa försörjningskedjor?2013In: Innovation eller kvartalskapitalism?: Utmaningar för global svensk produktion / [ed] Lars Bengtsson och Johnny Lind, Stockholm: Liber, 2013, 1, p. 76-90Chapter in book (Other academic)
  • 114.
    von Haartman, Robin
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för industriell ekonomi. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för industriell ekonomi. University of Gävle, Center for Logistics and Innovative Production.
    Boosting New Product Development Efficiency by Leveraging Firms' Manufacturing Absorptive Capacity2009In: Proceedings of the 16th International Annual EurOMA Conference, 14-17 June 2009, Göteborg, 2009Conference paper (Refereed)
  • 115.
    von Haartman, Robin
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Sustainable global purchasing: assessing the relative impact of sustainability goals and programs2018In: International Journal of Business Performance Management, ISSN 1368-4892, E-ISSN 1741-5039, Vol. 19, no 2, p. 169-188Article in journal (Refereed)
    Abstract [en]

    Global purchasing and offshoring are established strategic means for lowering costs and improving competitiveness. However, firms purchasing globally have also been accused of committing, supporting or just turning a blind eye to a number of environmental and social misdemeanours, such as disregard for environmental regulation, poor working conditions and corruption. The purpose of this paper is to provide quantitative evidence, based on a large scale survey, on how global purchasing actually impacts sustainability performance. The paper finds that there are no significant differences in sustainability performance between firms purchasing globally and firms purchasing regionally. However, firms purchasing globally are significantly more likely to fulfil their sustainability goals compared to firms purchasing regionally. Moreover, only firms that purchase globally show a significant impact of sustainability programmes on supplier sustainability compliance. Global purchasing can thus aid in social and environmental responsibility if it is accompanied by ambitious sustainability targets and sustainability programmes.

  • 116.
    von Haartman, Robin
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Niss, Camilla
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Digital or lean? Lean practices and adoption of digital technologies in assembly- and process-based industries2016Conference paper (Refereed)
  • 117.
    von Haartman, Robin
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Niss, Camilla
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Lean practices as requisites for the use of digital technology in production2016In: Proceedings of the 23rd EurOMA conference: Trondheim, 2016Conference paper (Refereed)
    Abstract [en]

    Lean production principles has for a long time been hailed as a solution for improving efficiency and competitiveness in manufacturing firms. Recently, however, advanced digital solutions have received more space in the spotlight. Does this mean that the era of Lean is over or just changed character? The purpose of this paper is to, based on a large scale survey of manufacturing units in Europe, explore the relationship between the use of Lean production practices and the technological practices associated with the use of digital technologies in production. The study shows that lean practices are strong predictors of firms’ introduction of digital technologies in production by manufacturing firms. The results indicate that lean, as defined in this paper, may indeed be a prerequisite for digital technologies used in production.

  • 118.
    von Haartman, Robin
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Öberg, Jakob
    Pettersson, Alexander
    Improving job engagement:: A survey of blue- and white-collar workers in an medium-sized manufacturing firm2018In: Proceedings of the 25th annual EurOMA conference, Budapest: International Annual EurOMA Conference, 2018Conference paper (Refereed)
    Abstract [en]

    Work engagement is important as it contributes performance. Previous studies have shown that blue-collar workers are less engaged than white-collar workers, which highlights the need to focus on ways to improve the work engagement of blue-collar workers. This paper tests whether different perceptions of job resources is an important driver of the differences in work engagement between white and blue-collar workers. Using a survey of 153 workers in a medium-sized manufacturing firm, the paper shows that job resources, especially work environment and career opportunities, have a great potential to increase the work engagement of blue-collar workers.

  • 119.
    von Haartman, Robin
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production. Private person.
    Sammalisto, Kaisu
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Blomqvist, Per
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Mechanical Engineering.
    A Longitudinal Comparison of Sustainability Learning between Men and Women in Engineering and Nursing Programmes2017In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, no 8, article id 1464Article in journal (Refereed)
    Abstract [en]

    For many years, Higher education institutions have been engaging with sustainability, many focussing on environmental ones. In this context, two phenomena have arisen that have, usually, been studied separately: (1) engineering schools have been at the forefront of sustainability efforts; and (2) women have tended to be more concerned about of environmental sustainability than men are. This paper is aimed at analysing the differences in perception between engineering students and nursing students at the University of Gävle, Sweden. Engineering and nursing programmes are practice-oriented with different foci on sustainability and usually being dominated by male and female students, respectively. The data for this article were based on two surveys carried out during 2010 and 2013, in which the same students answered the same questions at the beginning and at the end of their studies. Principal component analysis and regressions were carried out to analyse the survey answers. The results show that engineering programmes and gender affect actions positively. The results also show that engineering students increased their sustainability performance significantly more than nursing students. To improve environmental sustainability, it is important to promote the presence of women in engineering schools, and at the same time, social science oriented programmes (such as nursing) could learn from the efforts and action taken by engineering schools, so that sustainability is taught and learnt in a more holistic way.

  • 120.
    von Haartman, Robin
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Wang, Weihong
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Bengtsson, Lars
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Niss, Camilla
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Herdin, Gunnar
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    One size does not even fit one: supply chain strategies in the decline phase2016In: International Journal of Manufacturing Technology and Management (IJMTM), ISSN 1368-2148, E-ISSN 1741-5195Article in journal (Refereed)
    Abstract [en]

    Given that aligning supply chain strategies with changing product characteristics across the phases of the product life cycle is increasingly important, this study investigates the changes in supply and demand uncertainty when a product enters the decline phase and how these changes in turn affect the supply chain strategies applied. Based on four case studies, the analysis reveals that the uncertainties increase in three of four cases when the product enters the decline phase, and that the type of uncertainty, as well as the related challenges, depends on the products initial uncertainty of supply and demand. This implies that companies need to redesign their supply chain strategies towards either more lean or more agile supply chains, or combinations thereof, when the products are declining.

  • 121.
    Wallin, Kristina
    et al.
    University of Gävle, Department of Technology and Built Environment.
    Westblom, Maria
    University of Gävle, Department of Technology and Built Environment.
    Kartläggning av truckflöden på Primary Products: Ur ett Lean Production perspektiv2008Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    The Transport division is responsible for the internal transports on Sandvik Material

    Technology AB. At the moment there is no clear picture of how the straddle carriers are

    moving at the division Primary Products and if it is working in a satisfying way. It is

    important to see the whole picture of the transportation flow so improvements can be made.

    The purpose of this essay is to survey and analyse the truck flow in a Lean Production

    perspective. The essay is delimited to only include straddle carriers transportation ways in the

    Primary Products division. To survey the truck flow we have used a method called Walkthrough.

    This means that we have walked thorough the whole production flow and

    interviewed some of the employed on the way to get the necessary information. We have also

    made an extensive literature study to gather all the necessary theories that is relevant for this

    essay.

    Since 2003 Sandvik Material Technology is running a project called “ledtidsprojektet”, the

    purpose of this project is to create a more efficient production. This project is based on the

    Japanese philosophy Lean Production but is audited to be suitable to Sandviks organisation.

    Today most of the producing divisions within SMT are working according to

    ”ledtidsprogrammet”, unfortunately it is not introduced on the Transport division yet.

    The result we got by studying the use of the straddle carriers showed that 40 % where with

    cargo, 35 % without and 25 % where remaining times were breaks are included. The basis of

    the study is from a GPS-transmitter which is placed on one of the straddle carrier. We have

    also made our own study where we followed on the straddle carrier and measured the time for

    the different activities. To get a more statistical secured investigation it is necessary to make a

    more extensive study, when these study where made during a limited time.

    On the basis of the truck flows survey some suggestions for improvements have been

    identified. It has showed that today’s key measurements have to be overlooked to give a fair

    picture of the situation. They also have to improve the way they are planning the transports.

    This can be made by better communication with the producing divisions.

    For the straddle carriers to be more Lean first the producing divisions have to work according

    to the Lean philosophy. It is up to them to try to reduce the stock level and get a more evenly

    production.

  • 122.
    Wang, X.
    et al.
    Reliability Engineering Research Center of Guizhou Province, Guizhou University, China.
    Yang, J.
    Reliability Engineering Research Center of Guizhou Province, Guizhou University, China.
    Gong, M.
    Reliability Engineering Research Center of Guizhou Province, Guizhou University, China.
    Zhao, Ming
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production. Reliability Engineering Research Center of Guizhou Province, Guizhou University, China.
    Reliability analysis and evaluation of gas supply system2009In: ICMET'09 - Proceedings of the 2009 International Conference on Mechanical and Electrical Technology, Beijing, 2009, p. 245-249Conference paper (Other academic)
    Abstract [en]

    In this paper, the reliability model and the evaluation methods were neatly used with combining the engineering practice of the noise laboratory supply system, and this study give a quantitative evaluation result of the reliability system. It provides the scientific basis for improving the engineering design and increasing the reliability. This research results can be extended to similar projects, such as fuel supply system. From an engineering point of view, it is an innovation that the filter in the system is identified to be a "series - parallel mixed" structure by considering its physical structure and performance requirement.

  • 123.
    Älvebrink, Johan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Konceptutveckling av artikelpaletter för effektivare rengöring av detaljer2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Atlas Copco in Tierp focus its production on hand-held tools, fixtured tools and assembly systems. Examples of tools that the company produces are wrenches, screwdrivers, grinders and drills. The production unit in Tierp is the largest production unit in the Industrial Technique business area. The company manufactures articles in many sizes and shapes. The articles are stored and transported in workshop palettes (load carriers). In order to ensure quality standards the articles are cleaned every so often in large industrial washing machines.The rinsing process is not efficient enough when cleaning the company's smaller articles. Palettes which articles are placed in contributes greatly to the lack of efficiency. To get the articles completely clean rinsing must sometimes be done twice.The goal was to develop a new palette concept that enable increased cleanliness after rinsing.Through trial and error method several alternative concepts have been developed and the best selected using Pugh matrix.The selected concept significantly increases the water flow and detail capacity compared to the original palette, but manufacturing costs are estimated to increase.Depending on the manufacturing method selected for making the new palettes, construction design can part. If the palettes are made through 3D-printing it may be advantageous to reduce the height (possibly remove the support pillars) and the mass of the palette to lessen manufacturing costs, while too complex design can increase the cost of machining.I recommended a prototype of the palette too be tested in production to reliably evaluate its properties and quality.

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