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404 Uppsatser om Metal cutting - Sida 9 av 27
Maskinskydd på rullriktverk
ESAB is a world leader in production of welding consumables and equipment. The company manufactures, among other things, welding electrodes. A roller straightening unit is used in the cutting process to straighten the wire, which the welding electrode consists of, by adjusting some of the rollers during operation. According to ESAB?s standard and the European machinery directives, moving parts of machinery, such as rollers of the roller straightening unit, must be out of the operator?s reach.
Too Fast for Love : En maskulinitetsstudie av Glam metal under 1980-talet
Syftet med vårt arbete var att få en inblick i hur verksamma lärare i förskoleklass arbetar genusmedvetet med undervisningens innehåll i praktiken. För att få reda hur det ser ut i verksamheten genomförde vi en kvalitativ studie där vi använde oss av semistrukturerade intervjuer. Vi intervjuade tio lärare med varierade åldrar på sex olika skolor. Den genusmedvetenhet som lärarna lyfte fram kan knytas till följande kategorier: se individen, synliggöra och diskutera skillnader, bryta könsmönster, arbeta könsneutralt, lärarnas tankemönster samt tillvaron utanför förskoleklassen. Vår slutsats blev att lärare behöver få mer kunskap och fortbildning i form av en teoretisk grund som kan hjälpa att sammanfoga teori och praktik när det gäller att kunna arbeta mer genusmedvetet i verksamheten..
Gallringsinventering från helikopter utrustad med profilerande laser och kamera för låghöjdsfotografering
Today Holmen Skog finds and selects suitable thinning stands using data on upper height and basal area. These figures are often based on basic forest data that has been updated with the help of growth prediction models. The problem is that these figures are not always correct. The aim of this study was to investigate if a combination of data from a profiling laser and a digital camera for low elevation photography, can be used for collecting data on number of stems per ha, tree species mixture as well as basal area weighted mean height and upper height for stands. The possibility to use these data to assess the need for thinning cutting was also investigated.Laser data and aerial photographs were collected from a helicopter operating at an approximate height of 100 meters.
?ÄNTLIGEN!?- En lysrörsarmatur för det egna hemmet
The aim of our study is to ascertain whether a hanging suspension fluorescentlamp for a private home environment is going to be attractive for a largeaudience. We want to open up for new uses of fluorescent lamps as lightsources.The main approach in this work is how to design a fixture with fluorescentlamps as a light source that will meet the requirements and requests of thehome environment could look like. At the same time we want to make a newimpression of how a fluorescent light source.Primarily we used a quantitative method, but this was rejected after a pilotstudy. Instead we used a qualitatively based method in the sense that weconducted a group interview as well as individual interviews.Based on data from the interviews and our preliminary work a prototype wasbuilt. This prototype is a fluorescent fixture equipped with 2x14W T5fluorescent lamps, dimmed separately.
Alter ego : Ett föränderligt bord
Projektet har gått ut på att göra ett flexibelt bord som ska kunna gå att förändra mellan högt och lågt och mellan olika storlekar på bordsskivan. Detta som en funktionell aspekt av föränderlighet men jag ville även införliva en emotionell föränderlighet. Jag vill att användaren, på ett handgripligt sätt, ska kunna uttrycka sig själv i bordet. Min intention är att man, genom att göra sitt eget unika bord, skapar ett starkare band mellan artefakt och dess användare. Detta som ett led i en hållbar utveckling så att produkterna vi äger kan brukas längre och motverka den ohållbara så kallade slit-och-slängkulturen..
Säkerhetsbrytare för Gräsklippare
This thesis describes teh solution of two problems regarding safety on powered lawnmowers; protectning the users from injury when using the lawnmower in slopes, and when cleaning the cutting blade.The task was carried out through initial studies on a representative lawnmower. A generation of ideas followed with an evaluation to select the best solution. The winning concept was further developed to reach acceptable performance. The word resulted in a functioning prototype utilising an original way of detecting inclinations without incorrect signals. It c an serve as a platform for further development into a product.The work gives insightful experience of solving real-world problems, and especially to deal with situations where several variables and their effects are unknownPlease note that several parts of the work are confidential, and have therefore been removed from the thesis..
Utvärdering av tillverkningsmetoder för svarvbommar
On today?s competitive market, it is difficult to achieve profitability trough high prices on manufactured products. Profitability must be obtained through low manufacturing costs, high quality and short lead times. One of the companies on the market is Sandvik Coromant, manufacturer of tools and chips for Metal cutting. This master thesis investigates the methods of manufacturing for boring bars at the manufacturing unit GVH4 at Sandvik Coromant in Gimo, Sweden.
Teoribildning och bildtolkning som metod för nytänkande : en studie av heteronormativa diskurser med utgångspunkt i konstnären Chaterine Opies fotografi Self-Portrait/Cutting
Syftet med mitt examensarbete är att belysa resonemang rörande normalt respektive onormalt, maktstrukturer, genusfrågor och kommunikationsprocesser, med utgångspunkt i konstnären Catherine Opies fotografi Self-Portrait/Cutting från 1993. Verket rymmer en komplexitet eftersom brottet mot våra heteronormativa föreställningar utrycks så explicit. Det finns en ambivalens och direkthet i verket som fascinerar. De motstridiga läsningarna väcker ett behov av att förstå bilden på ett mer nyanserat sätt. Jag har medvetet valt att studera Self-Portrait utifrån teorier som ligger till grund för många konstnärer som väljer att röra sig i gränslandet för det samhället satt upp som norm.
Downsizing : Hur överlevare av uppsägningar påverkas av upplevelsen
In today?s business environment, cost-cutting practices such as downsizing and layoffs remains a widespread phenomenon. Although, the understanding of the effects that these practices has on the remaining individuals, defined as the survivors, is poor. The focus in this paper is therefore to examine how survivors of layoffs can be affected on an individual level, and by what causes.The study was conducted using open-ended, qualitative interviews with three individuals with different experiences of layoffs. The empirical data was analyzed by extracting quotations from the interviews.The study found that layoffs affected the morale and attitude towards management of the individual, and that perceived justice and uncertainty are two causes of negative effects from layoffs..
Energi- och kostnadseffektiva klimatskal : För lager-, industri- och kontorsbyggnader
A study to optimize insulation thickness for stock-, industrial- and office-buildings for external walls and roof in an economical perspective has been conducted on behalf of DynaMate. DynaMate?s role is to maintain all Scania?s buildings. Analysis has also included other parts of the building envelope, such as windows, exterior doors and industrial doors. In this thesis, three different types of exterior wall constructions has been investigated, these are a sandwich design consisting of sheet metal and a another one consisting of concrete, as well as a wall of concrete with a coating of plasters.
Åkertistel : biologi och icke-kemisk bekämpning
A growing problem in Swedish herbicide free agriculture, the Canadian thistle has been the object of several new trials, seeking methods for non-chemical weed control. The new trials have mainly confirmed earlier experiences; that the most successful methods of control are springtime ploughing, repeated cutting and competition from a stout crop. Row hoeing has also been proven effective. As opposed to earlier recommendations, half season fallow has shown to be a risky and often ineffective method of control. Trials regarding biological methods have shown that above others thistle rust (Puccinia punctiformis) may have the potential of controlling Canadian thistle the future.
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Små vatten- och avloppssystem : Möjligheter till inskränkning av verksamhtesområden
This study is focused on small scale water and wastewater handling in Sweden. The study is divided into two major parts; the first describes common methods for water- and wastewater handling and the second part is a case study on three small and expensive systems in Gällivare municipality, in the north of Sweden. In the case study, abilitys for the local government to hand over unwanted systems to the water users is investigated and found to be a plausible solution to cut costs for two out of the three studied systems. In the third case, water and wastewater systems is not recommended to be handed over but other ways of cutting costs are suggested..
Har antalet naturvärdesträd i Sverige förändrats mellan 1999-2009?
Forestry and forest products are vital components of the Swedish economy but the forest is also important for recreation, hunting, out-door life and conserving biodiversity. The Swedish Forest Act has two equally important objectives, production and environmental protection. Polytax is the Swedish Forest Agency´s inventory programme which monitors progress toward the two objectives in connection with regeneration fellings. It includes data on environmental protection measures taken in connection with regeneration fellings. 30 § of the Swedish Forestry Act and related regulations specify the demands for conserva-tion of nature.
Flexibel ljudinspelning för talkvalitetsanalys
This report describes how wavefiles can be recorded with programs written in the C++ language . The report also describes how the recorded sound is handled before it can be analyzed. The report describes the different parts that make a wave file to a wave file and how Windows handle these files. There is always some silence or noise of unknown length that passes through the system before some interesting sound arrives. That silence or nose must not be recorded and therefore some function must be developed that can detect interesting sound or speech.
Elektrolytisk reduktion av zink vid reningsprocess
When cylinders for motor saws are manufactured there are high demands on the cylinders strength and wearing qualities. Aluminum is a material with low density and is used by Husqvarna AB for their motor saw cylinders. The aluminum is strengthening with nickel that is attached to the cylinders through electrolysis. When aluminum is in contact with oxygen a film of oxide is formed. To eliminate the oxide and to prevent formation of new oxide zinc is used.