Technology of production of pieces by laser cutting

U uvodnom dijelu govori se o primjeni suvremenih tehnologija i njihovom značaju u modernoj proizvodnji. Osim toga pojašnjena je tehnologija lasersog rezanja i funkcioranje lasera kroz razne primjere iz proizvodnje. Eksperimentalni dio pripreme pozicija, pripreme programa i laserskog rezanja odrađeno je u firmi Đuro Đaković Specijalna Vozila. S pomoću CO2 lasera TRUMPF TRUMATIC L3050 rezani su pozicijski komadi od konstrukcijskog čelika iz lima S3555J2+C. Te prema napravljenom programu i ulaznim parametrima napravljena je tehno-ekokonomska analiza za izradu pozicija. Postavljeni parametri su napravljeni prema pravilima struke s fiksnim i varijabilnim troškovima te je prema tome promatrano vrijeme rezanja i duljina reza kao glavni faktor za određivanje cijene proizvoda. Analizom rezultata utvrđeno je da za izradu dvije pozicije laserskim rezanjem je potrebno utrošiti 91,80€ gdje od toga najviše troškova stvara materijal obrade sa svojom cijenom. Trošak rezanja za vrijeme obrade od 110 sekundi je 1,3€, a trošak materijala je 90€ prema trenutnoj cijeni od strane dobavljača. Prema ovome troškovi rada na laseru su potpuno opravdani cijenom te bilo kojom drugom obradom taj proizvod bi koštao višeThe introductory part discusses the application of modern technologies and their significance in modern production. In addition, the technology of laser cutting and the functioning of the laser were explained through various examples from production. The experimental part of position preparation, program preparation and laser cutting was done at the company Đuro Đaković Special Vehicles. Using the TRUMPF TRUMATIC L3050 CO2 laser, the positional pieces were cut from structural steel from sheet S3555J2+C. And according to the created program and input parameters, a techno-economic analysis was made for the creation of positions. The set parameters were made according to the rules of the profession with fixed and variable costs, and accordingly the cutting time and length of the cut were observed as the main factor for determining the price of the product. Analyzing the results, it was determined that for the creation of two positions by laser cutting, it is necessary to spend €91.80, of which the processing material with its price creates the most costs. The cutting cost for a processing time of 110 seconds is €1.3, and the material cost is €90 according to the current price from the supplier. According to this, the costs of working on the laser are fully justified by the price, and with any other processing, the product would cost mor