In a tool workshop of a factory, a manufacturing process optimization of the cold forming tool has been carried out. The aim of the thesis is to find out which technology is the most effective and results in dimensional accuracy, surface roughness and hardness of the cold forming tool. The overall production costs are also of high importance, as they determine the future manufacturing of the cold forming tools. We have designed various process methods. The first one represents a fixed procedure for the production of cold forming tools. The second one excludes external round grinding, but by adding hard turning, we obtained the dimensional accuracy. The third technology plan as well excludes external round grinding, but we decided to heat threat the workpiece and carry out hard turning, obtaining the dimensional accuracy. The result was of high quality, but the production costs have risen due to long-lasting process. Therefore, the third method is the most expensive. The comparison of the listed process methods has shown that the second operation carries the lowest costs and is in accordance with the laws. As we do not have to carry out the grinding operation, there is no need for unloading and reloading the workpiece again or its positioning and centring. As a result, the CNC grinding machine is available for other projects.
|
