Optimiranje konstrukcije kalupa za injekcijsko prešanje kotača s pomoću računalne simulacije

master's thesis

• Title (english): Optimisation of design of mould for injection moulding with computer simulation
• Author: Petar Županić
• Mentor: Damir Godec (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-01-20, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

Tema rada je optimiranje konstrukcije kalupa za injekcijsko prešanje i parametara procesa s ciljem minimiranja iznosa vitoperenja i trajanje ciklusa injekcijskog prešanja otpreska definirane geometrije. Injekcijsko prešanja je najvažniji ciklički postupak praoblikovanja plastomera ubrizgavanjem taljevine u kalupnu šupljinu. U radu su opisani osnovni elementi sustava za injekcijsko prešanje i faze procesa injekcijskog prešanja. Računalnom simulacijom injekcijskog prešanja određeni je optimalni broj i pozicija ušća s obzirom na svojstva otpreska te su na temelju optimalnog broja i pozicije ušća uz korištenje faktorskog plana pokusa, određeni optimalni parametri procesa s ciljem minimiranja vitoperenja i vremena trajanja ciklusa. Rezultat simulacija je bitno smanjeni iznos vitoperenja i skraćeno vrijeme trajanje ciklusa u odnosu na početne parametre procesa.

Abstract (english)

The subject of this thesis is the optimisation of the design of a mould for injection moulding and process parameters in order to minimize warpage and shorten the cycle time of injection moulded part with defined geometry. Injection molding is the most important cyclic process of primary shaping thermoplastics by injecting melt into a mold cavity. The paper describes the basic elements of the injection molding system and the phases of the injection molding process. Computer simulation is used to determine the optimal number and position of the gate concerning the properties of the moulded part and based on the optimal number and position of the gate using a factorial design of the experiment, optimal process parameters to minimize warpage and cycle time are determined. The result of the simulations is a significantly reduced amount of warpage and shortened cycle time compared to the initial process parameters.

• Keywords: injekcijsko prešanje plastomer; računalna simulacija; broj i položaj ušća; optimiranje parametara procesa; vitoperenje; vrijeme ciklusa injekcijskog prešanja
• Keywords (english): injection moulding of thermoplastics; computer simulation; number and position of the gates; optimisation of process parameters; warpage; injection moulding cycle time
• Language: croatian
• URN:NBN: urn:nbn:hr:235:411337
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-01-13 09:08:06