OPTIMAL USAGE OF RAW MATERIAL DURING CUTTING OPERATIONS

U ovom završnom radu cilj je izraditi matematički model kojim će se izračunati optimalno iskorištenje materijala prilikom rezanja kako bi se što je moguće više umanjio otpadni materijal. U uvodnom dijelu rada opisana je problematika materijalnog otpada. U drugom dijelu opisani su strojevi koji se koriste prilikom rezanja materijala, te računalna potpora pri izradi optimalnog plana rezanja. Za program CutLogic 2D dan je primjer rješavanja s proizvoljno odabranim parametrima, a za program CutLogic 1D primjer rješavanja je dan na zadanom zadatku. Naknadno je postavljen problemski zadatak optimalnog iskorištenja materijala za 1D slučaj rezanja kružnom pilom. Za problem je napisan matematički model te usporedba rješenja dobivenih pomoću alata Rješavač u MS Excelu i programu CutLogic 1D. U zaključku su navedene pozitivne i negativne strane obrađenog problema.The objective of this bachelor thesis is to develop a mathematical model which will calculate the optimal utilisation of material when cutting to help reduce the waste material as much as possible. The problems of material waste are described in the introductory part of the thesis. The second part describes the machines used when cutting materials, and the computer support for making optimal cutting plan. An example of solving arbitrarily chosen parameters is presented for program CutLogic 2D, and for program CutLogic 1D an example of solving is presented on the set task. The problem task of the optimal utilisation of material for 1D case cutting with circular saw is set subsequently. Mathematical model and comparison of solutions obtained using the Solver in MS Excel and CutLogic 1D program are written for the problem task. Advantages and disadvantages of the analysed problem are stated in the conclusion