Izbira rezilnega orodja za serijsko obdelavo na CNC stružnici

diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo - Projektno aplikativni program

Anže Rožič (Author), Davorin Kramar (Mentor)

Abstract

V diplomskem delu je najprej teoretično predstavljeno struženje. Zatem sledi predstavitev eksperimentalnega mesta in tehnološki postopek. Za namene izboljšanja produktivnosti proizvodnje sta predstavljeni dve operaciji, grobo in fino notranje struženje. Za vsako operacijo so izbrana tri primerna rezilna orodja različnih proizvajalcev in priprava na njihovo testiranje. V pomoč so tehnološka okna rezilnih orodij, s katerimi je določeno skupno tehnološko okno za posamezno operacijo. Skupna tehnološka okna sta razdeljena na tri točke. Zasledovan je osnovni cilj produktivnosti, tristo kosov v osmih urah (v eni izmeni), brez menjav orodja. Postavljene so mejne vrednosti, sprejemljive obdelave obdelovanca, pri posamezni operaciji. Pri grobem notranjem struženju je to obremenitev Z-osi, pri finem notranjem struženju pa hrapavost površine. V fazi grobega notranjega struženja je produktivnost dosežena s srednjo točko skupnega tehnološkega okna, maksimalna točka skupnega tehnološkega okna pa ne prinese želene produktivnosti. Pri finem notranjem struženju je želena produktivnost z dvema orodjema dosežena že pri maksimalni točki skupnega tehnološkega okna. Stroškovna analiza pri obeh operacijah prikazuje, da je najcenejše orodje tudi najbolj produktivno. Z opravljenim potrditvenim preizkusom so dobljeni rezultati v fazi testiranja potrjeni.

Keywords

diplomske naloge;struženje;izbira orodja;obraba orodij;obremenitev Z osi;hrapavost površine;produktivnost;

Data

Language:	Slovenian
Year of publishing:	2024
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[A. Rožič]
UDC:	674.057:621.7.019:620.191(043.2)
COBISS:	193657091
Views:	50
Downloads:	15
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Selection of cutting tool for batch production on CNC lathe
Secondary abstract:	In diploma thesis, turning is theoretically presented. This is followed by a presentation of the experimental site and technological process. Two operations, rough and fine internal turning, are introduced for the purpose of improving production productivity. Three suitable cutting tools from different manufacturers are selected for each operation and preparation for their testing is carried out. Technological windows of cutting tools, which define a common technological window for an individual operation, are used. The common technological windows are divided into three points. The basic goal of productivity is pursued, three hundred pieces in eight hours (in one shift), without tool changes. Threshold values for acceptable processing of the workpiece are set for each operation. For rough internal turning, this is the Z-axis load, and for fine internal turning, the surface roughness. In the stage of the rough internal turning, productivity is achieved with the middle point of the common technological window, but the maximum point of the common technological window does not bring the desired productivity. In the fine internal turning, the desired productivity with two tools is already achieved at the maximum point of the common technological window. The cost analysis of both operations shows that the cheapest tool is also the most productive. The results obtained in the testing phase are confirmed by the confirmation test.
Secondary keywords:	turning;selection of tools;tool wear;Z- axis load;surface roughness;productivity;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XX, 51 str.
ID:	23349831