<p>U disertaciji se prikazuje modularni sistem za projektovanje alata za<br />injekciono presovanje plastike. Analizirani su različiti prilazi u<br />projektovanu alata. Prikazana je koncepcija i funkcionisanje<br />razvijenog sistema. Verifikacija sistema je izvr&scaron;ena na konkretnim<br />plastičnim proizvodima. Na kraju su dati odgovarajući zaključci i<br />mogući pravci budućih istraživanja.</p> / <p>The dissertation shows the development of the modular system for<br />mold design for plastic injection molding. Different approaches were<br />analyzed in the field of mold design. The concept and functioning of<br />the developed modular system is presented. Validation of the<br />proposed system is made with the specific plastic parts. At the end<br />the appropriate conclusions and possible directions for future<br />research are given.</p>

The following report conducted with the collaboration with the University of Halmstad and Halmstad Gummi Fabric (HGF) rubber company which is in Halmstad. The focus on the project is to reduce the cost of the transfer mold material, increase efficiency of production, save energy and redesign the transfer mold. The methodology used in this project is based on the Quality Functional Deployment (QFD) which is widely appreciated globally in the product development, and other product development and mold design methods, FEM analysis are applied to achieve the goals. The implementation of this methods is efficient and beneficial to reduce the material cost and redesign the transfer mold without compromising the initial quality of the product. This thesis resulted in, for the transfer molding plates we recommended the proper material for the plates and the insulation parts. And we redesign the transfer mold plates and optimized the design for reducing the cost. We did FEM analysis for optimization purpose, and the benefits to optimizing this is to reduce the material cost, machining cost and labour cost. As well as, we add the insulation plates in the design so that the transfer molding plates works efficiently with the reducing the energy wastes.

This diploma thesis submits a proposal of technology design manufacturing threaded plastic ends. In the first part it deals with literary studies of plastics and plastic injection molding. In the second part is the design of an injection form for the specified component. Part of the practical part is also the right choice of material and the injection mold, which was designed based on the calculations of technological parameters. In the conclusion of this thesis is technical economic evaluation.

No description available.

No description available.

This master‘s thesis deals with the solution of the production of the given part "APZ13". The structural analysis of the component is followed by the choice of the available manufacturing technology. The following is a theoretical description of the chosen technology and injection mold. Its solution is practically described in the following chapter and then the creation of TPV documentation of the whole project. The conclusion of this master’s thesis is a technical-economic evaluation of the chosen technology and discussion.

This master’s thesis focuses on a design of injection mold which is used for manufacturing of a plastic holder of roof rack. The first part includes shape analysis of the holder and explains function of the product as well as specify essential requirements which must be met. The choice of the most suitable manufacturing technology is followed by theoretical part which deals with literature review of plastic materials, technology of injection molding and basics of injection mold designing. Practical part includes overall design of the mold for the holder of roof rack based on technological calculations. Practical part is followed by mold flow analysis simulation showing suitability of designed mold along with selection of suitable injection molding machine based on product construction design and technological process of manufacturing. The conclusion of master’s thesis includes an economical evaluation of proposed manufacturing technology.

Currently, the plastics industry has a wide range of applications due to the possibility of a fully automated process or through increased production efficiencies. The reason for this choice of the thesis was to understand the whole issue of plastic injection molding process. The specified component is used to atach the sail, which serves to protect workers in the welding sector. A specified number of the series is 350 000. The work includes a theoretical problem of injection molding process, selection of technology, material selection and design of mold. An integral part of every design mold is a simulation of injection, which is also included. In conclusion of thesis is the calculation of the various stages of production and operation of the injection mold.