Dvig učinkovitosti CNC rezkalnega stroja

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

Martin Marolt (Author), Tomaž Berlec (Mentor)

Abstract

V podjetju LTH Castings, d. o. o., se v obratu orodjarne ukvarjajo z izdelavo tlačnih orodij. Na oddelku grobe obdelave CNC stroji, na katerih se izdelujejo sestavni deli tlačnega orodja, dosegajo slabo učinkovitost. Glavni razlog za nizko učinkovitost strojev so pogoste menjave obdelovancev, saj je proizvodnja posamična. Vsaka menjava obdelovanca in nastavitev stroja predstavlja izgube, zato želimo ta čas čim bolj skrajšati. Učinkovitost smo tako izboljšali predvsem s skrajšanjem časa mirovanja stroja med menjavo obdelovanca, kar smo dosegli z metodama SMED in 5S. Z vpeljavo metod vitke proizvodnje nam je uspelo skrajšati čas mirovanja stroja med menjavo za 26,2 % in izboljšati učinkovitost CNC rezkalnega stroja za 11,1 %.

Keywords

diplomske naloge;vitka proizvodnja;menjava obdelovancev;metoda SMED;metoda 5S;vpenjalni sistemi fast mill;CNC rezkalni stroji;

Data

Language:	Slovenian
Year of publishing:	2024
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[M. Marolt]
UDC:	658.51:005.935:621.937(043.2)
COBISS:	211108355
Views:	94
Downloads:	39
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Increasing the efficiency of CNC milling machine
Secondary abstract:	The tool shop of the LTH Castings company produces pressure tools. In the rough machining department, CNC machines, manufacturing the components of the pressure tool, achieve low efficiency. The main reason for the low efficiency of these machines is frequent replacements of workpieces, due to an individual production. Every workpiece replacement and machine setting lead to losses, so we want to reduce this time as much as possible. The efficiency was increased mainly by reducing machine downtime during workpiece replacement, which was achieved with the SMED and 5S methods. By introducing lean production methods, we were able to reduce machine downtime during the replacement by 26.2 % and increase the efficiency of the CNC milling machine by 11.1 %.
Secondary keywords:	lean manufacturing;workpieces replacements;SMED method;5S method;fast mill clamping systems;CNC milling machines;
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, 58 str.
ID:	24911010