The electrification of the automotive industry is the largest change in decades of the industry. This fact demands that established actors evaluate their current strategies and develop new competence. The engineering differences between conventional internal combustion engines vehicles and electric vehicles are many and significant. This means that strategies that made sense in past, needs to be reevaluated and recontextualized for today- and future needs. The goal of this case study was to create a basis from a ‘’birds eye view’’ of sourcing decisions for manufacturing companies. This case is designed based on Volvo Cars wishes and thoughts regarding the decision of in-house design and assembly of differential bevel gears. We believe that other manufacturing companies can use this report as a basis when faced with a similar sourcing decision. The basis of the case is qualitative, to get a thorough quantitative result, deeper investigation into engineering valus, economic impact and company-specific factors must be investigated. The study has been conducted in two parts, where the first part gives an understanding of the technical parameters to understand the process of the process of design and assembly of differential bevel gears. The second part examines, with the help of a business case, earlier case studies and compares the case company's situation and contextualize the wants and needs with a resource-based view and summarized through a SWOT-analysis to finally get a quantification with the help of a concept-decision matrix. Based on what the company's wishes were regarding a sourcing decision, a result could be determined in the form of a recommendation to the company. The results showed that insourcing would benefit the company. This is partly due to the fact that they would get cross-functional knowledge and that a collaboration between design and assembly would benefit the final product, the end-customer and therefore the company at large. The results from the concept matrix indicate that the company should choose the insourcing strategy. But there are many parameters to consider. What is not addressed in this report are the economic impact compared to the technical and organizational gains of an insourcing decision, which could be researched in future studies. / Elektrifieringen av fordonsindustrin är den största förändringen på decennier för bilindustrin. Detta kräver att etablerade aktörer utvärderar sina nuvarande strategier och utvecklar ny kompetens, eftersom de tekniska skillnaderna mellan konventionella förbränningsmotorer och elfordon är många och betydande. Detta innebär att strategier som var lämpliga i det förflutna måste omvärderas och omkontextualiseras för dagens och framtida behov. Målet med denna fallstudie var att skapa ett underlag för inköpsbeslut för tillverkande företag. Detta är utformat utifrån Volvos önskemål och tankar kring beslutet att insourcing precisionssmidda koniska växlar. Vi tror att andra tillverkningsföretag kan använda denna rapport som grund när de står inför ett liknande inköpsbeslut. För att få ett fullständigt resultat måste djupare undersökning av ekonomi, tekniska möjligheter och företagsspecifika faktorer undersökas. Studien har genomförts i två delar, där den första delen ger en förståelse för de tekniska parametrarna. Den andra delen har granskat tidigare inköpsbeslut som jämförts med det undersökta företagets situation och framtida mål. Utifrån vad bolagets önskemål var gällande ett inköpsbeslut kunde ett resultat fastställas i form av en rekommendation till företaget. Resultaten visade att insourcing skulle gynna företaget. Detta beror på att de skulle få tvärfunktionell kunskap och att ett samarbete mellan design och montering skulle gynna slutprodukten. Resultaten från konceptmatrisen indikerar att företaget bör välja insourcingstrategi. Men det finns många parametrar att tänka på. Vad som inte tas upp i denna rapport är de ekonomiska aspekterna av ett insourcingbeslut, som kan undersökas i framtida studier.

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Durch neue, hochflexible Fertigungsverfahren wie das Freiformfräsen eröffnet sich für Kegelradverzahnungen ein großes geometrisches Optimierungspotenzial. Diese Arbeit widmet sich daher der Ermittlung einer optimalen Makro-, Mikro- und Zahnfußgeometrie für bogenverzahnte Kegelräder. Neben dem Zahnprofil und der Zahnfußkurve wird besonderes Augenmerk auf die Ermittlung topologischer Flankenmodifikationen zur Maximierung der Tragfähigkeit gelegt. Gleichzeitig bietet der gezeigte Optimierungsalgorithmus die Möglichkeit zur Minimierung der Geräuschanregung, wodurch der bisher existierende Zielkonflikt zwischen diesen beiden Aspekten aufgehoben werden kann.

Machining components out of tolerances is of no use in competitiveproduction. The machining system sets the limitations of dimensionalaccuracy and surface quality of a machined component. The capabilityof the machining system describes these limits in terms of specifiedvalues. This thesis deals with machining system capability analysismainly focused on machine tool static and dynamic stiffness.The influence of stiffness and flexibility on machining systemcapability is analytically and experimentally investigated. Theexperimental work presented in the thesis complies with the theoriesand shows the relation between machine tool capability and theoutcome on the machine component.The concept of capability analysis by elastic linked system andthe currently available tools for such an evaluation is presented anddiscussed. The basis of elastic linked system analysis is the use ofmeasurements under loaded condition. The machine tool is loadedwith a known force creating a test condition closer to real machining,compared to current methods of unloaded machine tools. Twomeasurement tools for elastic linked system capability analysis areexplained in the thesis: Loaded Double Ball Bar and ContactlessExcitation and Response System.The thesis consists of an analytical base and an experimental casestudy on spiral bevel gear face milling. The experiments are discussedand compiled with the given theories. / <p>QC 20130513</p>

The aim of this master's thesis is to design of wood chipper connected to the tractor ZETOR 3011. In the introduction of this thesis it is described the general use of wood chippers. First part of thesis contains recherche from wood chippers' area. Then it is followed with the description of the own chipper design and with the basic design calculations. Part of the thesis is 3D model of the machine and drawing documentation of selected parts. Next part is given economic evaluation. In the last part of thesis is made analysis of risk.

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