20.500.12556/DKUM-16657 Določitev optimalnih posebnih postopkov za razrez materialov Determination of optimal special procedures for material cutting Pri večini proizvodnih procesov je osnovna faza pri izdelavi končnega izdelka razrez vhodnih materialov. Pri tem želimo dosegati najboljše rezultate v smislu velike natančnosti, kvalitetne obdelave in velike produktivnosti ob nizkih stroških rezanja. Za dosego želenih rezultatov se lahko odločamo med posebnimi postopki za razrez materialov — laserskim, plazemskim ali rezanjem z vodnim curkom. Zaradi veliko dejavnikov, ki lahko vplivajo na izbiro optimalnega posebnega postopka razreza, je pomembno dobro poznavanje posameznih postopkov. Vsak postopek rezanja ima svoje dobre in slabe strani. V nalogi je posebej analiziran razrez konstrukcijskega in nerjavnega jekla, ter aluminija in zlitin. Z uporabo laserja lahko režemo praktično vse materiale, dosegamo visoke hitrosti in dobro kvaliteto rezanja. Slaba stran rezanja z laserjem so majhne debeline rezanega materiala in visoki stroški postopka. Plazma je najcenejši postopek rezanja, pri katerem dosegamo zelo visoke hitrosti rezanja tudi pri debelejših materialih, vendar smo omejeni uporabo elektroprevodnih materialov. Postopek rezanja s plazmo je zelo neugoden zaradi negativnih vplivov na okolje. Rezanje z vodnim curkom je okolju zelo prijazen postopek, s katerim lahko režemo vse vrste materialov velikih debelin in dosegamo dobro kvaliteto rezanja. Slaba stran tega postopka so nizke rezalne hitrosti in višji stroški rezanja. Glede na vse analize in ostale dejavnike, ki vplivajo na izbiro postopka rezanja menim, da sta optimalna posebna postopka za rezanje materialov rezanje z laserjem in rezanje z abrazivnim vodnim curkom, pri čemer zaradi rezanja večjih debelin in okoljskega vidika dajem prednost slednjemu. Cutting of the input materials is the basic level of the final product manufacture in most of the production processes. We wish to achieve the best results in terms of attaining accuracy, high quality processing, high productivity and reduction of cutting costs. In order to achieve desired results we can choose between material cutting special processes – laser cutting, plasma cutting or water jet cutting process. There are many factors that can affect the selection of the optimal special cutting process. Therefore sound knowledge of specific special cutting processes is very important. Every cutting process has its advantages and disadvantages. For the purpose of this graduation thesis we explicitly analyzed cutting of the engineering and stainless steel and cutting of aluminium and alloys. All types of material can be cut by using laser. Using laser cutting technology enables high speed and significant cutting quality while the disadvantages of laser cutting are low thickness of cut materials and high costs. Plasma cutting is the cheapest cutting process enabling to achieve extremely high speed cutting also for thicker materials, but this process is limited to use of electrically conductive materials. This process reflects significant negative environmental effects. Water jet cutting is an environmentally friendly process that can be used for cutting all types of materials of high thickness. By using water jet cutter we can achieve high quality of cutting while the disadvantages of this technology are low cutting speed and high costs. Regarding all the analyses and other factors that affect selection of a cutting process I consider that the optimal special material cutting processes are the laser cutting and abrasive water jet cutting. Because of thicker material cutting possibility and concerning environmental aspects priority must be given to the abrasive water jet cutting process. razrez laser plazma vodni curek materiali hitrost kvaliteta debelina abraziv okolje stroški. cutting laser plasma water jet materials velocity quality thickness abrasive environment costs. true true false [J. Dvorjak] Slovenski jezik Angleški jezik Diplomsko delo 2010-11-05 13:31:28 2010-12-06 11:19:43 2022-04-13 08:47:57 2023-12-21 03:12:51 2010 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.91.02(043.2) 15021078 URN:SI:UM:DK:CV2YH4Z4 VS_Dvorjak_Jozef_2010.pdf VS_Dvorjak_Jozef_2010.pdf 1 CF7D3EC166E5F561B35312054E95FDD2 9d9f703588e7a33909c5e13910474cc1da8d10160777a1c734587d2a43dcb60a bc400497-7c04-11eb-bb7a-00155d0001ca 20.500.12556/dkum/2846f19b-e2c7-4f80-b7f1-2d54236231bb https://dk.um.si/Dokument.php?lang=slv&id=19239 Fakulteta za strojništvo 0 0 0