Izdelava ščitnika motorja z uporabo metode vzvratnega inženirstva

V diplomskem delu obravnavana tema izdelave izdelka iz ogljikovih vlaken sloni na metodi vzvratnega inženirstva z uporabo naprednih orodij digitalizacije obstoječega izdelka. Z metodo 3D skeniranja pridobljen oblak točk se v procesu vzvratnega inženirstva s CAD programskimi orodji rekonstruira v 3D model obstoječega izdelka. Na osnovi 3D modela je bilo izdelano orodje za modeliranje polimernega kompozitnega izdelka z metodo stiskanja v vakuumu. Uporabljen polimerni kompozitni material tvorita epoksidna smola in ogljikova vlakna v obliki tkanine. Kompozitni izdelek še stisnjen v orodju je bil toplotno obdelan, da je epoksidna smola polimerizirala in je izdelek dobil ustrezno oblikovno stabilnost ter pričakovane mehanske lastnosti. Končna obdelava kompozitnega izdelka je bila izvedena ročno z brušenjem robov na kolutnem brusilnem stroju, izrezovanjem z diamantnim rezkarjem in svedrom za kovino na stebrnem vrtalnem stroju. Ker vzvratno inženirstvo sloni na rekonstrukciji obstoječih izdelkov, naprav, strojev ali programske opreme, je pomembno poudariti pošten pristop s spoštovanjem zaščite avtorskih in patentnih pravic. The thesis on the topic of carbon fibre product manufacturing is based on reverse engineering using advanced tools for digitalising an existing product. The 3D scanning point cloud is reconstructed into a 3D model of the existing product in a reverse engineering process using CAD software tools. Based on the 3D model, a tool was developed to model a polymer composite product using the vacuum-assisted compression method. The polymer composite material used consists of epoxy resin and carbon fibre in the form of a fabric. The composite product, still pressed in the mould, was heat-treated to polymerise the epoxy resin and to give the product the necessary dimensional stability and expected mechanical properties. The final processing of the composite product was carried out manually by grinding the edges on a disc sander, cutting them out with a diamond cutter and a metal drill on a pillar drilling machine. Since reverse engineering is based on the reconstruction of existing products, devices, machines, or software, it is important to emphasise a fair approach with respect for copyright and patent protection.