Vid dragprovning av lödningar framkom att i många fall är kopparledningen svagare än själva lödningen och brottet sker i kopparledningen eller i kabelskon. Undersökning av mikrostrukturerna visade att det bildas martensit i grundmaterialet i ett område under pinnlödningarna. Medelvärdet på martensitlinsens storlek beräknades till 10,69 mm i diameter och 0,73 mm i djup. På grund av att grundmaterialet påverkas bör pinnlödningar sättas minst 10 mm från varandra. Lödningar gjorda i -5°C visade inga tecken på försämrad kvalitet med avseende på lägre hållfasthet eller ökad martensitbildning.

Vid dragprovning av lödningar framkom att i många fall är kopparledningen svagare än själva lödningen och brottet sker i kopparledningen eller i kabelskon. Undersökning av mikrostrukturerna visade att det bildas martensit i grundmaterialet i ett område under pinnlödningarna. Medelvärdet på martensitlinsens storlek beräknades till 10,69 mm i diameter och 0,73 mm i djup. På grund av att grundmaterialet påverkas bör pinnlödningar sättas minst 10 mm från varandra. Lödningar gjorda i -5°C visade inga tecken på försämrad kvalitet med avseende på lägre hållfasthet eller ökad martensitbildning.

This report shows the process of the development of a sensor module for the seed drills of Väderstad Verken AB. The module is supposed to replace existing solutions, provided that it is better from both a constructional- and an economical aspect. The purpose of the sensor is to continuously give the driver information about the level of height of the front- and Drilling tools and the main purpose of the sensor is to allow the seeds to be placed at the desired depth. The sensors which have been taken into consideration have all been of an analogue type and have a protection class of minimum IP67.The methods applied have been taken from the book ?The Mechanical Design Process? by David G.

In this study we try to focus on the costs for wear parts on different type of soil tillage machines and at Väderstad Rapid Drilling machine. We have studied some of the leading types of cultivators and disk harrows. Among the cultivators we have investigated Väderstad Cultus, Dalbo Dinkomax, Horsch Tiger and Terrano. At disk harrow we have looked at Amazone Catros and Väderstad Carrier. We have made more detailed study on costs for wear parts, working depth, driving speed and diesel consumption.

The acquisition process as an object for research and empirical studies have increased in importance during the past decade. The purpose of this thesis is to investigate this process further. This was done by reviewing previous research covering the area of mergers and acquisitions. Seven key factors that should be considered in an acquisition process emerged; acquisition project management, planning, communication between the acquirer and the potential target, goal alignment within management, company-cultures, a trade-off between a certain speed in integrating the companies and consideration of the employees, and finally the follow-up. These factors have been shown to increase the likelihood of value creation in acquisitions.

The work thesis was performed at Assalub a company which is situated in Åtvidaberg. The company works with developing, manufacturing and marketing equipment for handling of lubricants for light and heavier industry. The work thesis it is based on a inquiry Assalub got from MacGregor which is a company within cargo solution, from port to offshore system.For unloading grain and other material from the ship cargo it is used combined inlet feeder and screw conveyor, there the inlet feeder is Drilling down through the cargo and feed the screw conveyer with material to further destination. At the bottom of the screw conveyer and the inlet feeder there is a bearing that keep the parts together. However the lubrication of the bearing must be made manually.

Gunsta is situated about 10 km east of Uppsala. Today there are plans to establish 1000 new households in Gunsta before year 2030. The required energy for heating houses and water would be distributed via a district heating system, which also includes 200 existing residences. The annual required energy, according to this study, would be 16.2 GWh with a maximal peak effect of 6.9 MW. To meet this need, the study suggests a system with heat pumps to upgrade the 31?C water from a 1.8 kilometre deep borehole.

A study was carried in conjunction with the Orthodontic department at Halmstad General Hospital in Sweden to investigate the possibility of reducing cost and manufacture time of dental implant drill guides. The current system involves sending a digital image in STL format to the Materialise factory in Belgium where information of the position of dental implants is translated onto a moulded mouthpiece. Drill guides are placed in the mouth piece which is then returned to the surgeon. The mouthpiece complete with drill guides is then placed in the patients mouth and used as a guide for the implant drill holes. The cost of 10000 sek and a turnaround time of 2 weeks gave rise to the need for a faster and cheaper solution.

The degree project is performed at Metso Kamfab. The production is aimed on machines everything from handling of fiber to paper pulp. Metso Fiber and Kamfab are using Pro/Engineer for design and blueprint production. The processing department types the NC-programs in notepad on the basis of the blueprints, the CAD-dates that already is there are not used. The aim with the work is to study if Kamfab can use CAM-system for processing and production of programs for their NC-machines.

Many buildings are now nearing the end of their service life. This applies to both the older houses from the 40's and 50's to the million project houses that did not prove to be as sustainable in the long run. Often there is a desire to extend the service lifetime, but to do that you need to make detailed inspections. The Folkets hus in Gävle is one of those buildings that is in need of renovation and to fulfill the new requirements that must be met in today's buildings. It is desired to make the buildings rentable space more attractive and to extend the building with two more floors.

Examensarbete utfört på uppdrag av Boliden Mineral AB i Aitikgruvan. Det har sin bakgrund i att malbarheten hos Aitikmalmen varierar kraftigt, upp till 40 %. Detta försvårar planeringsarbetet och således mycket intressant och lönsamt att söka orsakerna till variationen. Examensarbetet syftar således att utgöra en förbättring i verksamheten helt i linje med styrdokumentet, the new Boliden way. Emellertid föreligger stora svårigheter med att spåra malmen genom hela processen varför man i detta arbete har valt att studera sambandet mellan krossbarheten och bergmassans respons på den tillförda specifika energin från borriggen.

Optimization of soil tillage and crop rotation is important in many aspects, but particularly in maximizing profit margins. Since the economic outcome is usually decisive, it can be interesting to study different combinations of soil tillage systems and crop rotations in order to identify the maximum economic outcome. How a crop functions in a particular tillage system determines whether it is profitable to grow that crop. Different tillage systems affect the soil and its processes in different ways. Reduced tillage often works best on weak-structured heavy clays and on silty clays.

De återstående två tredjedelar av tunnlarna igenom Hallandsåsen kommer att slutföras med hjälp av fullortsborrningsteknik. Tunnelborrmaskinen (TBM) är en sköldad maskin som har möjlighet att gå i öppet så väl som slutet läge. Slutet läge innebär att utrymmet framför borrhuvudet trycksätts av en slurryblandning med åtta bars mottryck som begränsar vatteninläckaget samt stabiliserar fronten. Även förbehandling av bergmassan genom skölden eller genom borrhuvudet är möjlig för att begränsa vatteninläckaget och stabilisera bergmassan framför fronten. TBM:en är utrustad med borriggar från Atlas Copco som har möjlighet att använda sig av MWD-teknik (measure while Drilling).

The district heating load is seasonally dependent, with a low load during periods of high ambient temperature. Thermal energy storage (TES) has the potential to shift heating loads from winter to summer, thus reducing cost and environmental impact of District Heat production. In this study, a concept of high temperature borehole thermal energy storage (HT-BTES) together with a pellet heating plant for temperature boost, is presented and evaluated by its technical limitations, its ability to supply heat, its function within the district heating system, as well as its environmental impact and economic viability in Gothenburg, Sweden, a city with access to high quantities of waste heat.The concept has proven potentially environmentally friendly and potentially profitable if its design is balanced to achieve a good enough supply temperature from the HT-BTES. The size of the heat storage, the distance between boreholes and low borehole thermal resistance are key parameters to achieve high temperature. Profitability increases if a location with lower temperature demand, as well as risk of future shortage of supply, can be met.

En utfackningsvägg är en icke bärande väggkonstruktion, ofta av trä som har för syfte att minimera energiförbrukningen för byggnader i betong. Inuti konstruktionen används ibland stålpelare för att bära ovanliggande konstruktioner. Stålpelarna utsätts för laster som de måste dimensioneras för. Över och under pelarna svetsas plåtar fast för att öka den belastade arean och hindra brott i betongen.I detta examensarbete har därför en datormodell i programmet Excel framtagits. Modellen dimensionerar kantpelare i stål enligt Eurokoderna.