Comparison of CNC milling and 3D metal printing

Današnje tržište zahtijeva precizne izratke za dijelove koji se ugrađuju u isto takve sklopove i nije više dostatna obrada takvih na klasičnim strojevima kako bi se postigla niža cijena i viša kvaliteta. Drugi razlozi tome su što se radi o kompleksnim površinama koje nije moguće izvesti konvencionalnim metodama obrade. Ako bi se uspjelo izvesti konvencionalnim metodama obrade, nikako ne bi bili konkurentni na današnjem tržištu. Zbog toga je svaka ozbiljnija tvrtka zamijenila stare klasične strojeve s CNC strojevima. Isto tako, budući da tehnologija i razvoj napreduju, javili su se neki novi, ne još posve prisutni strojevi, koji s novom aditivnom tehnologijom proizvode također kompleksne i precizne proizvode . U ovome završnom radu uspoređuje se izrada CNC glodanja na troosnome obradnome centru i aditivna metoda 3D printanja metala. U prvome (teorijskome) dijelu opisuje se razvoj strojeva i njihovo funkcioniranje. U drugome dijelu obrađuje se konkretan izradak za proizvodnju s dvjema različitim metodama. Za tu svrhu izrađen je 3D model u SolidWorks programu, a naknadno je izrađen CNC program u SolidCAM-u. Nakon izrade CNC programa provedena je kontrola generiranoga koda programom CIMCO edit. Za korištenje aditivnih metoda, tj. 3D printanja iz metala korišten je program Materialise Magics. Nakon izrađene simulacije 3D printanja 3D model topološki je optimiran. Završno je izrađena analiza i usporedba korištenih metoda.Today's market requires precise workpieces for parts that are installed in the same assemblies and it is no longer sufficient to process such on classic machines to achieve a lower price and higher quality. Other reasons for this are that these are complex surfaces that cannot be manufactured by conventional processing methods. If they could be produced by conventional processing methods, they would not be competitive in today’s market. This is why every serious company has replaced old classic machines with CNC machines. Likewise, as technology and development progress, some new, not yet fully present machines have emerged, which with new additive technology also produce complex and precise products. This final work compares the fabrication of CNC milling on a three-axis machining center and the additive method of 3D metal printing. The first (theoretical) part describes the development of machines and their functioning. The second part deals with a specific workpiece for production with two different methods. For this purpose, a 3D model was created in the SolidWorks program, and after that a CNC program was created in SolidCAM. After creating the CNC program, the generated code was controlled by the CIMCO edit program. The Materialize Magics program was used to use additive methods, ie 3D printing from metal. After the simulation of 3D printing, the 3D model is topologically optimized. The analysis and comparison of the used methods was finally made