Process planning of the reduction gear shaft

Glavni zadatak ovog završnog rada je projektirati tehnološki proces vratila reduktora oznake H2000644-2 u količini od 7500 komada godišnje. Izrada projekta započinje tehnološkom analizom konstrukcije proizvoda kako bi se utvrdila i po potrebi poboljšala tehnologičnost proizvoda. Provođenjem tehno-ekonomske analize pogodnih varijanti ulaznog materijala odlučeno je da će se koristiti odljevak kao ulazni materijal. Slijedi izbor najboljeg redoslijeda operacija i postupaka, te izbor proizvodne opreme i alata. Kada smo definirali koncept tehnološkog procesa, strukturiramo operacije. Operacije raščlanjujemo na zahvate, te za svaki zahvat određujemo režime rada i alate te prilažemo skicu za bolje razumijevanje zahvata. Izračunom svih vremena pojedinih operacija te njihovim zbrajanjem dolazimo do ukupnog vremena za izradu proizvoda. Nakon razrade operacija potrebno je izračunati ekonomsku i produktivnu brzinu rezanja za jedan zahvat grube i fine obrade. Za kraj izrađujemo klasičnu tehnološku dokumentaciju kako bi sve obuhvatili na jednom mjestu.The main task of this final work is to design the technological process of the shaft of the gearbox marked H2000644-2 in the amount of 7500 pieces per year. The development of the project begins with the technological analysis of the product construction in order to determine and, if necessary, improve the manufacturability of the product. By conducting a techno-economic analysis of suitable variants of the input material, it was decided that the cast will be used as the input material. The following is the selection of the best sequence of operations and procedures, and the selection of production equipment and tools. Once we have defined the concept of the technological process, we structure the operations. We break down operations into procedures, and for each procedure we determine the modes of operation and tools, and attach a sketch for a better understanding of the procedure. By calculating all the times of individual operations and adding them up, we arrive at the total time for the production of the product. After elaborating the operations, it is necessary to calculate the economic and productive cutting speed for one rough and fine machining operation. Finally, we create classic technological documentation to cover everything in one place