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Analiza možnosti nadgradnje obstoječih 3-osnih obdelav s 4-osno visokohitrostno tehnologijo frezanja
ID Duh, Matej (Author), ID Pušavec, Franci (Mentor) More about this mentor... This link opens in a new window

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Abstract
Številna podjetja se dandanes soočajo z obdelavo vedno bolj kompleksnejših obdelovancev. Pozicioniranje, vpenjanje in obdelava takih obdelovancev je zahtevna ter nam vzame veliko časa in denarja. Če želimo skrajšati čase in s tem stroške, je potrebno že v razvoju tehnoloških postopkov pomisliti na številne podrobnosti. V magistrski nalogi je predstavljen problem razvoja celotnega tehnološkega postopka strojne obdelave štirih različnih obdelovancev, ki sestavljajo sekalni rotor drobilnika lesa. V uvodnem delu naloge je predstavljeno ozadje problema in cilji raziskave. Sledi poglavje s teoretičnimi osnovami, ki so osnova za razumevanje problema. V nadaljevanju so opisani posamezni koraki izdelave tehnološkega postopka strojne obdelave. Prikazana in analizirana je dejanska obdelava obdelovancev na CNC obdelovalnem stroju. Izdelana je primerjava stroškov zunanje in lastne obdelave po razvitem tehnološkem postopku. Na podlagi primerjave je bila ugotovljena upravičenost lastne obdelave, saj so stroški lastne obdelave za 44,5 % nižji glede na zunanjo. Pri obdelavi ene serije pa prihranimo 1.394 €. Analizirana je amortizacijska doba izdelane vpenjalne priprave in ugotovljeno je, da za povrnitev stroškov izdelave moramo obdelati 36 obdelovancev. Na koncu so še predstavljene nadaljnje možnosti prihranka stroškov pri strojni obdelavi obravnavanih obdelovancev.

Language:Slovenian
Keywords:frezanje konstruiranje CNC frezalni stroji vpenjalne priprave Mastercam rezalni parametri
Work type:Master's thesis (m2)
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Year:2018
Publisher:[M. Duh]
UDC:621.914.3:658.5(043.2)
COBISS.SI-ID:16395803 This link opens in a new window
Publication date in RUL:02.09.2018
Views:1050
Downloads:268
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Secondary language

Language:English
Title:Analysis of the possibility of upgrading existing 3-axis processing with 4-axis high speed milling technology
Abstract:
Today many companies face the machining of increasingly complex workpieces. Positioning, clamping and machining of such workpieces is demanding and takes a lot of time and money. If we want to shorten the time and thus the costs, it is necessary to consider many details already in the development of technological procedures. The master’s thesis presents the development problem of the entire technological process of machining four different workpieces that make up the cutting rotor of the wood shredder. The introductory part of the paper presents the problem background and the research objectives. The following chapter addresses the theoretical foundations that are the basis for understanding the problem. The next chapter describes all the steps in the production of the technological machining process. The actual machining of the workpieces in the CNC machine is shown and analysed. A comparison of the costs of external and our own machining is made according to the developed technological process. Based on the comparison, the justification of our own machining was established, as the cost of our own machining is 44.5 % lower than the external one. With machining of one series, we save 1.394 euros. The depreciation period of the clamping device was analysed, and it was found that we need to machine 36 workpieces to be able to recover the manufacturing costs. Finally, further cost saving options are presented regarding the machining of the workpieces in question.

Keywords:milling construction CNC milling machine clamping device Mastercam cutting parameters

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