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90 Uppsatser om 3D-printing - Sida 2 av 6
Bältarbo tegelbruk och Sveriges tegelindustri under 1900-talet
This thesis is divided into two parts. Part one contains a general description of the flexographic printingtechnique. Part two contains a more detailed investigation in the areas substrate, inktransfer and trends, which are only briefly commented in part one, and conclusions and comments.The major problem concerning substrate is washboard. This phenomena can be limited if one can control and minimize the amount of glue applied in the single- and double facer, use high surface weight on liner, use low surfaceweight on fluting and control the humidity during the conditioning of the corrugated board. Corrugated board with a smooth surface radically increases the quality in print.
Flexorafiskt tryck på wellpapp
This thesis is divided into two parts. Part one contains a general description of the flexographic printingtechnique. Part two contains a more detailed investigation in the areas substrate, inktransfer and trends, which are only briefly commented in part one, and conclusions and comments.The major problem concerning substrate is washboard. This phenomena can be limited if one can control and minimize the amount of glue applied in the single- and double facer, use high surface weight on liner, use low surfaceweight on fluting and control the humidity during the conditioning of the corrugated board. Corrugated board with a smooth surface radically increases the quality in print.
Utvärdering av mätmetoder för att fastställa lackmängden vid offsettryckning on-line
This project has been made in cooperation with Stora Enso Research Centre Falun (Research). Thebackground of the project is that Research has customers who demand a method to measure the quantityof varnish online in offset printing. The aim with the project is to investigate if any test method correlateswith the quantity of varnish and to improve the understanding of the variables in the varnishingunit. The goal with the project is to develop a functional method. Two printing trials have beenperformed.
Omläggning av skiftgång
The digital printing market is changing faster now than before and the ability to adjust to newsituations has become more importat to a printing company. An efficient internal communicationis essential. At Elanders Digitaltryck a decision was made in august 2002 to look over the shiftworking system for the printer operators. In this paper, an investigation of the possibilities tochange the existing system to a better one was made.The project resultet in four different timetabels. The construction was based on theoretical studiesand an analysis of the current situation at the workplace.
PRESS / PLAY. Ett studium av övergivna format och metoder för flerfaldigande genom grafisk produktion för musikdistributören Kyrkvägen Kassett
The purpose in this Bachelor degree project has been to create a visual identity and to design a compilation cassette for the small music distributor Kyrkvägen Kassett. My way of approaching the task has been to draw parallells between the cassette as an obsolete music format and more or less abandoned or anachronistic formats, materials and printing methods in the graphic design area. The result is a visual identity that is built upon materials and methods of production rather than specific visual elements. The work is to be seen as a tribute to the small non-profit producers of music and graphic design. As often done in the DIY movement, I chose to consider my lack of practical knowledge in these fields not as an encumbrance but as an asset and an incentive.
Utvärdering av digitala provtryckssystem
Six different Digital Proofing Systems from three different techniques have been evaluated as totechnique, printing quality, economy and usability. Digital proof from two paper qualities, coatedand uncoated, has been compared with references printed in offset, to see how good they match eachother. Only two Proofing Systems manage to print on reference paper. The other Proofing Systemsuse special paper for digital proof.Measurements and visuell judgement show that the Digital Proofing Systems visualise referencepictures with quite good quality. Proof optimised for coated paper visualise the colours with goodresult.
Kvalitetssäkring av Clas Ohlson AB´s grafiska produktionsflöde
The question formulation in the essay brought up whether Clas Ohlson works today with their graphical productionflow and if that way of working leads to a desirable result in press. After a dialogue with Clas Ohlson it emerged thatthey had certain problems with the material that came out of the printing presses. Certain colours were not reproducedaccording to the stated values that had been developed. In March -08 an analysis of the graphical production flowspresent situation were done at Clas Ohlsons in order to find out how they worked with their production of print materials.In the analysis, their way to work with color spaces, displays, ICC-profiles, PDF-exports, pictures and printerswere examined. Occasional interviews were also implemented with responsible personnel about how they worked withdifferent aspects.Deficiencies were found on almost all examined parts in their graphical production flow.
Studie av web to print samt kartläggning av kunders behov för tillämpning av systemet CiPublisher
Customers put their printing suppliers to severe claims for shorter production time and faster deliveries.Printers always look for new solutions to increase the satisfaction of their customers. Oneexample of such a solution is web to print, where the customers book their printed matters atInternet.The solution involves design of printed matter by using templates that are made unique for thecustomer's printed matter. Web to print is suitable for reiterated printed matters. By using templatesthe customer doesn´t have to redo their layout for every new edition. Bromma tryck AB hasinvested the system CiPublisher, which is applied for the customer to make their printed matter atInternet.The purpose of the examination work is to investigate the needs of the customers of Brommatryck for a web to print solution and how such a system should be adapted.The result shows that the customer who is in need of a web to print solution wish such a system tobe easy managed and also usable.
Print quality study of a laboratory offset press
PAPRO operates within the Forest Research company and their mission is to develop value-addingindustry solutions. At present there are no good ways for mills to easily test the printing quality on newsprintpaper. There is a great need for a fast way to do this on different paper qualities; with a laboratory-offset press this can be both a time and money saving method. At PAPRO Forest Research, NewZealand, a laboratory offset press has been developed and designed, during the past seven years, concerningthis issue. Earlier projects were made concerning the press, e.g.
Kundanalys av tryckpappersförbrukare i Finland
The negative trend of newspapers reading gives the owner of several paper manufacturingcompanies in the West worries. Producers should be more concern to strengthen their marketpositions in order to maintain profitability in the paper mills. Holmen Paper is a medium sizedpaper mill company with all of their production in Europe. Sales are mainly made to printingcompanies operating in European countries. In order to strengthen their economic strengthHolmen Paper needs to increase the market share in markets where they have the greatestprofit margins.
Abrasiv nötning av polymerer tillverkade genom 3D-skrivning
Volvo Cars in Skövde manufacture and assemble Volvo engines. When attaching the ignition coil to all 4-cylinder engines, a special mounting tool is required. This mounting tool is currently manufactured from injection-molded polyoxymethylene (POM), a thermoplastic. It has been noted that the life span of the tool is shortened as a result of abrasive wear that occurs during the attachment process of the ignition coil.An investigation of the possibility of manufacturing the mounting tool with a 3D-printer is undertaken in cooperation with ÅF, a consultant to Volvo Cars. A literature study is first presented to introduce broader knowledge on the subject.
Framtagning av giveaway-komponent
This thesis has been done in collaboration with Höganäs Digital Metal. Höganäs Digital Metalwork with 3D printing of metal and need giveaway components that they can give tocustomers to show their development process.By making a parametric CAD model can we generate about 200 different designs of a?Höganäs brännvinskrus? in miniature. You can choose between different items that shouldbe in it and a variety of perforations to look into it..
Morgontidningars miljöstrategier : drivkrafter idag och i framtiden
Society?s interest for environmental issues was reinforced in the 1960:s when the book by
Rachel Carson, ?Silent Spring?, came out. She described a picture of a world without birds
singing and this got the environmental debate going. Today, this debate has reached the
corporate world since stakeholders are putting pressure on companies to show greater
environmental awareness. Many companies show uncertainty when they are faced with these
new market demands.
OnTag Scorekort : Utveckling av en mobilapplikation för Android
In recent years seemingly everything has become digital. Some areas, like classical sports, have been slower to adapt to new technical development. Golf is an example of this. Usually when people play golf they bring their clubs, golf balls and a paper scorecard on to the golf course. The advantages of keeping score in a digital way areevident.
Statusvisare för diskmaskin
The following report is based on the graduate job course in CAD technician program year two. The work reflected in the report is done in collaboration with Hans-Erik Eldemark. This work includes the development of a progress bar for dishwashers.The execution of the thesis has involved a list of criteria with conditions and requirements, which after where weighted in a matrix. Subsequently, the product proposal was developed and has been divided into three categories, twist mechanisms, attachments and exterior design. Finally, suggestions have been designed in CATIA V5 and prototypes were produced using 3D-printing.