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491 Uppsatser om Additive manufacturing - Sida 1 av 33

Axellagring till Klasserare

GE Healthcare wants to investigate whether Additive manufacturing would be an alternative method in their workshops in the Umea? plant. Additive manufacturing is called 3D printing in everyday language and manufactures details by building them up layer by layer in an automated machine. The purpose of this work is therefore to investigate how mature Additive manufacturing methods are and how they could be used at GE.The work has been divided into three parts. The first section investigates how Additive manufacturing would work in the production workshop at GE.

Additiv tillverkning : Ett nytt alternativ inom tillverkningsteknik

GE Healthcare wants to investigate whether Additive manufacturing would be an alternative method in their workshops in the Umea? plant. Additive manufacturing is called 3D printing in everyday language and manufactures details by building them up layer by layer in an automated machine. The purpose of this work is therefore to investigate how mature Additive manufacturing methods are and how they could be used at GE.The work has been divided into three parts. The first section investigates how Additive manufacturing would work in the production workshop at GE.

Framtida användningsområden för materialadderande tillverkning : En studie i hur materialadderande tillverkning kan användas i rymden

In this paper we have studied possible future uses for Additive manufacturing (commonly referred to as 3D-printing) in Space. More specifically we have sought to establish how Additive manufacturing can be used to construct structures on the Moon. Our studies have shown that Additive manufacturing has great potential for establishing colonies on not only the Moon, but perhaps even further away from our home planet. With Contour Crafting-technology in combination with ISRU (In Situ Resource Utilization) we could, with material already present in the sediment layers of the Moon, construct advanced structures without having to transfer any extra material from Earth. This would lower the costs of establishing a colony on the Moon to such extents that it could actually be fiscally possible..

Perimeter

The project explores the possibilities of using Additive manufacturing (3d-printing) to build architecture. Through a combination of theoretical research and practical experiments a building system has been developed which has the capabilities to create houses with great geometric flexibilities to a affordable price today. The construction system Perimeter is demonstrated in a pavilion situated at Norra Djurgården in Stockholm. .

3D-teknik som ett verktyg för bevarande - digital dokumentation och fysisk rekonstruktion

Uppsats för avläggande av filosofie kandidatexamen iKulturvård, Konservatorprogrammet15 hpInstitutionen för kulturvårdGöteborgs universitet2015:09.

Standardiserat arbetssätt för kunskapsprocesser : ? En fallstudie på en prototypverkstad

In recent years, Lean has been implemented in a variety of companies with focus areas that differ from the conditions that characterizes manufacturing. This transfer has contributed to fairly superficial results because companies almost exclusively focus on Toyotas methodology and not on the goal of Lean. The effort of transforming Lean from manufacturing to any organization requires a definition on a general level and a view of Lean as a system. One of the core principles of Lean and the foundation of continuous improvements is standardized work. In product development there is a negative view on standardized work, where the engineers state that the principle is not applicable for knowledge processes that include non-repetitive and creative work.In the framework of this master thesis literature has been studied to find support that standardized work is applicable for product development and areas that include knowledge processes.

Adderande tillverkning för metall

The Swedish automotive industry has since way back been struggling with bankruptcy, abroad buy outs and staff cuts. Competition and pressure on prices are two factors that affect the automotive industry. Because of this, the companies are pressured to continuously developing their work in addition to be able to compete on the market. The aircraft industry has successfully managed to implement Additive manufacturing (AM) and for motorsport has several components manufactured with AM been used. When AM is used as a manufacturing method, there are a number of advantagesthat follows.

Additiv Tillverkning i Fordonsindustrin - Avgörande faktorer vid val av lämplig 3D-skrivarteknik Additive Manufacturing in Automotive Industries - Decisive factors in the selection of suitable 3D printing technology

Additiv tillverkning (AT) eller 3D-utskrivning är en teknologi som har berömts den senaste tiden och förutsägs kommer att förändra hela tillverkningsindustrin. Dessa termer hänvisar båda till ett antal tillverkningstekniker där ett objekt framställs skikt för skikt genom att successivt tillföra material i tunna lager.Baserat på en litteraturstudie och intervjuer med experter inom området undersöker denna studie möjligheten att använda AT inom företaget CJ Automotive (CJA) vilket är en underleverantör inom fordonsindustrin som tillverkar olika slags pedalsystem. Rapporten beskriver additiv tillverkning, dess fördelar och olika användningsområden. Olika AT-tekniker, AT-material och välkända 3D-skrivartillverkare presenteras. Signifikanta fakta rörande både kvalitet, kostnad och teknik redogörs för.

Optimering av skumdämpande additiver För användning i en lufttorkande vattenburen rostskyddsprimer

The development of defoaming additives is steadily progressing and there are therefore always new and improved additives on the market. Some modern additives provide the desired defoaming effects by themselves, in contrasts to previous additives that needed to be used in combination with other additives. The task of this bachelors thesis was to evaluate the possibility of using these improved defoaming additives, with the aim to find alternatives that give the system better defoaming attributes while, at the same time, using less of the primary products. The tests were carried out in the coating type Teknocryl Aqua Combi 2780. The coating is a waterborne air drying acrylat-latex/alkyd based coating that can be used for both single coat painting and primer.

Cassava as an additive in biomass fuel pellet production :

In this study, the effects of using fine milled cassava stems as an additive in biofuel pellet production was compared to the effects of refined starch addition. The bulk biomass fuel raw material, to which the additive was added, was a blend of spruce and pine sawdust. An experimental design in the factors cassava/starch content, moisture content and material temperature was used. Measured responses were pellet bulk density, pellet durability, amount of fines, pelletizer motor current, pellet temperature, die temperature and CV for pelletizer motor current (a measure of process stability). Each response was modeled by multiple linear regression (MLR).

Effektiv metod för tydliga, skrivna instruktioner för produkttillverkning

St. Jude Medical Inc is one of the worlds leading companies in the medical technology area with cardiovascular devices as its specialty.Manufacturing implantable medical devices such as Pace Maker Electrodes requires complex design, safe processes and well trained operators. User friendly manufacturing operations are a necessity.Lately there?s been an increase of the manufacturing volume which also increased the number of operators. More operators need to be trained and cross-trained.

Light Explosion : rekonstruktion av en akrylarmatur

This report presents thesis of Liisa Kokkonen in collaboration with Muovikilpi Oy.The project?s goal is to find a new construction for an existing lamp made of acrylic. Form and design retains and the manufacturing occurs at Muovikilpi Oy. The project contains the new construction and manufacturing of the lamp and also a proposition for a set with floor and wall lamp.  The paper gives an outline of acrylic as material and how it reacts with light.

Kalkylering av bearbetningskostnader

At a manufacturing company, due to the competition the price is reducedtowards the manufacturing cost. Therefore it is important to maintain control ofones costs and keep calculations up-to-date.This thesis deals with cost accounting at a aluminium-processing company. The report focuses on calculating machine cost per hour since the manufacturing costs are the major part of the total product cost.Managers on the company believe that the costs they use in calculations todayneither is up-to-date nor advantageous in a market aspect and due to that their calculations need to be revised. The machines cost per hour is a major part in the manufacturing calculation. The company wants to provide a competitive price that also covers their costs.

Reglerbara skovlar på pumphjul

The thesis investigates if it is possible to replace several pumpimpellers with one controllable pumpimpeller, with a economical and a manufacturing analisys aspect. The studied pumpimpeller is mounted on a midrange wastewaterpump, N3127MT.In the thesis a contemplated manufacturing process is evaluated for a concept that are supposed to act as a controllable pumpimpeller. The pumpimpeller are studied in a manufacturing and flow matter and are presented in the thesis.The manufacturing cost is also estimated, and this has been compared to the storage cost and other costs that the existing pumpimpeller generates.The thesis also shows that the concept has minor losses in cutting quality aswell as the effiency comparing to the existing pumpimpeller.The concept also raises the manufacturing cost and this increasing cost makes the presented concept to expensive to carry through.An investigation of the costs that the existing pumpimpeller produces has also been done, and this shows that there is not that much expenses to earn regarding to for example the storage cost. The storage cost includes information from Flygt?s central storagecenter in Lindas, Sweden and Metz, France, and also an inventory about the pumpimpellers located at Flygt?s different distributors worldwide.The thesis shows that a controllable pumpimpeller will generally increase the cost for the pumpimpeller and the performance of the pumpimpeller will decrease..

Personalens del i årsredovisningen : En studie på svenska börsföretag

Background: Resources that are hard to put a value on and cannot be classified as assets in the balance sheet as well as the development towards the information society has led to an increasing need and use for voluntary information in the annual reports. The increase of voluntary information can foremost be seen in the field of human resources.Purpose: The purpose of this thesis is to describe the development of voluntary information about human resources in the annual report of a number of Swedish quoted companies. The purpose is also to see if there is a difference in the development between manufacturing companies and service companies.Method: Six manufacturing companies and six service companies were chosen from the Stockholm exchange A-list. Using both a qualitative and quantitative research method the annual reports of the chosencompanies were studied for the years 1995, 1997, 1999, 2001, and 2003. A model consisting of seven categories; health, diversity, recruitment, staff turnover and comfort, benefits and motivation, education and competence development, was developed to clarify were the development took place.Conclusions: After finishing the study one can tell that the amount of voluntary information about human resources in the annual report has increased even though the percentage share of the total annual report only has increased appreciably for manufacturing companies.

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