Autocomp Management (Poland)

Abstract Production of optical lenses requires the implementation of a pre-treatment process that gives a spherical shape to the lens with allowances for subsequent precision grinding and polishing. This process is carried out as abrasive machining with special cup wheels and in industrial practice it is called “lens milling”. As part of the implementation doctorate, work is being carried out on the construction of an intelligent machine tool for the pre-treatment shaping of spherical surfaces of optical parts-lenses. The machine will have diagnostic systems that will allow to observe the milling process of the lens. The system directly measure the lens profile using a laser distance sensor. The subject of the research presented in the article is the analysis of selected errors in the position of the tool in relation to the lens. In milling lenses process, tools are metal bonded milling diamond cup. Classification and precise analysis of various types of tool setting errors will allow in future for automatically prediction tool position compensation depending on the result of measurements of the current shape of the spherical surface.KeywordsLens grindingOptical partsTool setting

W referacie zaprezentowano zarys problematyki stereoskopowej projekcji modeli 3D wyrobw techniki wojskowej w postaci amunicji artyleryjskiej i pociskw rakietowych, jako narzdzia wspomagajcego proces ksztacenia i szkolenia w AMW w Gdyni. Zastosowanie nowoczesnych metod ksztacenia i szkolenia z wykorzystaniem wirtualnej rzeczywistoci systemu symulacji trjwymiarowych modeli amunicji artyleryjskiej i pociskw rakietowych, w wierny sposb oddaje specyfik ich budowy i zasady dziaania. Istotna jest tu jednak nie tylko szybko przyswajania wiedzy, ale rwnie wiksza skuteczno wyraona poziomem utrwalenia przekazywanych informacji, a podniesienie standardu nauczania wpywa na atrakcyjno uczelni, a przede wszystkim uatwia zrozumienie studentom

Sandwich construction has found extensive application in aeronautical, marine structures and container production due to high strength to weight ratio. This paper documents the compressive strength of Kevlar balsa sandwich structure with epoxy matrix subjected to edge wise compressive loads. Different modes of failure were also observed under the said loading. General modes of failure are buckling, shear crimping, dimpling and wrinkling of faces. In edge wise compression testing of Kevlar balsa sandwich, shear crimping and wrinkling of faces were the modes of failure to be observed, with each mode of failure exhibiting different compressive strength.