Izvedba hladilnih kanalov v orodnem vložku za visokotlačno litje z aditivno izdelavo

Košir, Niko (author), Valentinčič, Joško (mentor), Lebar, Andrej (comentor)

Med procesom visokotlačnega litja aluminija prihaja do velikih termomehanskih obremenitev orodja. Obstoječe hlajenje orodja je izvedeno s hladilnimi kanali, ki so izdelani s postopkom vrtanja in se slabo prilagodijo kompleksni obliki orodne votline. Z aditivno izdelavo smo oblikovali prilagojene hladilne kanale in toplotna analiza je pokazala, da z njimi dosegamo boljšo učinkovitost hlajenja. Rezultati meritev so pokazali, da smo temperature na orodnem vložku uspeli znižati za približno 50 odstotkov pri enakih pogojih obratovanja.

• Language: Slovenian
• Keywords: tlačno litje, hlajenje, selektivno lasersko pretaljevanje, hibridna izdelava, toplotna analiza, orodni vložek
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [N. Košir]
• Year: 2021
• Number of pages: XXII, 66 str.
• PID: 20.500.12556/RUL-129116
• UDC: 621.74:536:621.9.04(043.2)
• COBISS.SI-ID: 78081027
• Publication date in RUL: 27.08.2021

Secondary language

• Language: English
• Title: Conformal cooling of the runner insert for aluminium die casting

Abstract

During high pressure die casting process large thermomechanical strains appear on die casting tool. Existing cooling consists of conventional cooling channels, made with drilling process. Main downside is uneven fit to to the shape of die cavity. With help of additive technologies we can make conformal cooling channels. Thermal analysis showed that they offer much better cooling efficiency. From the measurement results, we found that we were able to reduce the temperatures on the tool insert by about 50 percent under the same operating conditions.

• Keywords: die casting, cooling, selective laser melting (SLM), hybrid manufacturing, thermal analysis, die insert