Experimental Investigations on the Ejector Forces in the Die Casting Process

• Autorzy: Krischke S. , Müller S. , Schuchardt T. , Kouki Y. , Dilger K.

Identyfikatory

DOI

10.24425/afe.2018.125179

• Języki publikacji: EN

Abstrakty

EN

A measuring system was developed for the measurement of ejector forces in the die casting process. When selecting the sensor technology, particular care was taken to ensure that measurements can be taken with a high sampling rate so that the fast-running ejection process can be recorded. For this reason, the system uses piezoelectric force sensors which measure the forces directly at the individual ejector pins. In this way, depending on the number of sensors, it is possible to determine both the individual ejector forces and the total ejector force. The system is expandable and adaptable with regard to the number and position of the sensors and can also be applied to real HPDC components. Automatic triggering of the measurements is also possible. In addition to the measuring system, a device and a method for in-situ calibration of the sensors have also been developed. To test the measuring system, casting experiments were carried out with a real aluminium HPDC aluminium component. The experiments showed that it is possible to measure the ejector forces with sufficient sampling rate and also to observe the process steps of filling, intensification and die opening by means of ejector forces. Experimental setup serves as a basis for future investigations regarding the influencing parameters on the ejection process.

Słowa kluczowe

EN

innovative foundry technology; innovative foundry material; information technology; foundry industry; high pressure die casting; ejector force

PL

innowacyjna technologia odlewnicza; innowacyjny materiał odlewniczy; technologia informatyczna; przemysł odlewniczy; odlewanie wysokociśnieniowe

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 4
• Strony: 116--119
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Krischke S.

• Institute of Joining and Welding, Technische Universität Braunschweig, Langer Kamp 8, 38106 Braunschweig, Germany

autor

Müller S.

• Institute of Joining and Welding, Technische Universität Braunschweig, Langer Kamp 8, 38106 Braunschweig, Germany

autor

Schuchardt T.

• Institute of Joining and Welding, Technische Universität Braunschweig, Langer Kamp 8, 38106 Braunschweig, Germany

autor

Kouki Y.

• Institute of Joining and Welding, Technische Universität Braunschweig, Langer Kamp 8, 38106 Braunschweig, Germany

autor

Dilger K.

• Institute of Joining and Welding, Technische Universität Braunschweig, Langer Kamp 8, 38106 Braunschweig, Germany

Bibliografia

• [1] Köser, O., Rückert, J., Ubl, P. (2015). Modeling and Optimization of Part Ejection in Magnesium High Pressure Die Casting. In European Metallurgical Conference 2015, 14–17 June 2015 (pp. 371-382). Düsseldorf, Germany: GDMB.
• [2] Adam, M. (2016). Development of a Surface Concept for Aluminium Die Casting Moulds using Wear Protection layers to reduce Release Agent Application and Spray Cooling to a Zero Level. Dissertation. University Kassel, Germany. (in German).
• [3] Terek, P., Kovacevic, L., Miletic, A., Kukuruzovic, D. Skoric, B., Drnovsek, A. & Panjan, P. (2017). Ejection Performance of Coated Core Pins Intended for Application on High Pressure Die Casting Tool for Aluminium Alloys Processing. Tribology in Industry. 39(3), 334-339.
• [4] Tosa, H. & Urakami, A. (1973). Influencing Variables on the Die Casting Ejection. Gießerei-Praxis. 5, 79-84. (in German).
• [5] German, A. & Klein, F. (1998). Optimization Potentials in Spraying water-miscible Mould Release Agents in Die Casting. Gießereiforschung. 3, 120-126. (in German).
• [6] German, A. (1999). Application and Effect of water-miscible Mould Release Agents during Die Casting. Dissertation. Otto-von-Guericke-University Magdeburg, Germany. (in German).

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).