Very much like the great navigations in the 14th century or the space programs, exploring remote parts of our planet is a dangerous, challenging, and unknown endeavor that drives human beings. We not only do it to find resources but also for the sake of science, looking for shreds of evidence of a past that we only speculate. Our civilization has been driven by courageous and visionary explorers and now the challenges are different, and they need to be investigated. The Unexplored Earth is a design project that aims to provide a vision of the future of mineral exploration in such an unknown planet, the Earth. Hopefully, the result presented in this paper will serve its purpose of inspiring both the mining industry and geological survey organizations throughout the world in developing new technologies and methods of exploration increasing the rate of discoveries with reduced expenditure in comparison with current scenarios. Pilgrim is an underground drone capable of exploring where humans are not able to go, performing geological, geophysical, and geochemical surveys within the Underground.

En undersökning genomfördes för att hjälpa Epiroc att redovisa utsläpp från Scope 3 som till stor del kommer från leverantörstillverkning. Resultatet skulle levereras i form av utsläppsfaktorer som beskriver koldioxidutsläpp per vikt av ett material. Undersökningen skulle vara representativ för de nuvarande globala tillverkningsförhållandena och ta hänsyn till nyckelregionens procentuella andel av tillverkningen jämfört med den globala hastigheten per material. Baserat på en förstudie av befintliga forskningsdokument, hade de utsläppsfaktorerna som hittats en noggrannhet över 80% vilket uppfylldes genom att inkludera global tillverkningsgrad. / An investigation was conducted to help Epiroc account for Scope 3 emissions which largely come from supplier manufacturing. The result was to be delivered in form of emission factors which describe carbon dioxide emissions per weight of a material. The investigation was to be representative of current global manufacturing conditions and consider key region’s percentage of manufacturing compared to the global rate, per material. Based on a pre-study of existing research papers, the data that was obtained to represent the emission factors of materials used in Epiroc’s SED machines had an accuracy above 80%, which was fulfilled by including global manufacturing rate.

The world is looking for greener solutions and so is the mining industry. This quest has led to the question whether it is possible to have a completely electric rock drill. This work carries out an initial exploration of completely electrified percussion. Furthermore, it compares the preliminary performance of an electrified rock drill against a hydraulic counterpart. A mathematical model for an electromagnetic linear motor was developed and simulated as a component in the simulation software Hopsan. This component was then incorporated into a electromagnetic rock drill model which uses components from Epiroc’s in-house developed library. The electromagnetic rock drill model was then optimised and used to obtain the performance characteristics such as impact energy and frequency which were compared against one of the hydraulic rock drill models, COP 1838. The results show that it is possible to reach the same performance as the COP 1838 with enough input current. The characteristics were then studied with respect to variation of physical parameters of the electromagnetic linear motor and input current. Finally some limitations and strengths of the electromagnetic rock drill concept are discussed and some conclusions are presented.

This is a master thesis done in the program of industrial design engineering at Luleå University ofTechnology, conducted during the spring of 2021. The project is a collaboration with Epiroc RockDrills AB which is a leading global company in the mining industries, and the workshop in which thisthesis is made manufactures and assembles rock drills sold worldwide. The aim of this thesis is toincrease the utilization of three lathes in the workshop that are often left unused when theiroperators have to leave the machines to perform other tasks. This is due to short operation timesthat require the operator to be present.The project follows a cyclic method in order to force the work forward without worrying aboutmissing information. There were three cycles with different aim. In the first cycle, the focus was onplanning the project and mapping the current state. In the second, a requirement specification wasmade and concepts were created. These concepts were further developed in the third cycle. Finally arecommendation was made.The current state was mapped using different methods like interviews and spaghetti diagram. Thesemethods showed that the lathes were unused mainly during setups, and that setups were timeconsuming due to equipment being placed far away from the lathes. The result showed that manyproblems could be related to bad layout design and lack of standardized work. In order to create abetter layout for the operators, a relationship chart was made and several suggestions constructedbased on it. The purpose of the layout changes was to get necessary equipment closer to the lathesin order for the setups to be performed faster. All suggestions were compared to the requirementspecification and only three were further developed during the third cycle.The lean tool SMED (Single Minute Exchange of Die) was used to create a standard for setups. Thisstandard was further developed into a work instruction to be better visualized for the operators.The final recommendation is to make layout changes according to one of the layouts presented inthis report, and to implement the work instruction. These changes will increase the utilization bypreparing as much as possible before the lathe is tuned off.