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Optimizing Sand Moulding Process through Regression Models and Destructive Testing

Abdulamer Dheya

Archives of Foundry Engineering

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2023

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Vol. 23, iss. 4

163--168

EN

The main objective of the present study is enhanced of the sand moulding process through addressing the sand mould defects and failures, ultimately lead to improve production of the sand castings with well-defined of pattern profiles. The research aimed to reduce the cost and energy expenditure associated with the compaction time of the sand moulding process. Practical destructive tests were conducted to assess properties of the green sand moulds. Linear regression and multi-regression methods were employed to identify the key factors influencing the sand moulding process. The proposed experimental destructive tests and predicted regression methods facilitated measurement of the green sand properties and enabled evaluation of the effective moulding parameters, thereby enhancing the sand moulding process. Factorial design of experiments approach was employed to evaluate effect of parameters of water content and mixing time of the green sand compaction process on the mechanical properties of green sand mould namely the tensile strength, and compressive strength.

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Plastic filling simulation comparison analysis of the gating system in injection moulding parameter

Umor M. Z., Mohd A., Efendee A. M., Khir M., Bahiyah Baba N.

Journal of Achievements in Materials and Manufacturing Engineering

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2022

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Vol. 112, nr 2

64--69

EN

Purpose: The paper is discussed the anticipation of the simulation software precision with the real moulding process by setting up the distinctive metering stroke separation. Design/methodology/approach: The Inventor CAD software was used to design the product experiment and perform the simulation by applying MoldFlow application to produce the processing parameter defining for the injection moulding machines. Findings: The results predicted by this filling simulation appears reasonable result as compared to the injected product. Prediction analysis given by the software is exceptionally valuable for the injection moulding parameter setting machines which can diminish the time of mould setup and can reduce the trial stage on the production line. Research limitations/implications: The gating system is the most crucial part in injection moulding process and the limitation is to get the accurate filling time and injection pressure to ensure the cavity is fully filled before the material at the gate solidify. Originality/value: Gating system configurations are utilized to optimize the filling conditions of injection moulding parts. This important element was developed for achieving product quality. The utilize of simulation software is exceptionally supportive in the model designing stage to predict the quality and process capacity for the product. This paper presents the filling simulation of the side gate system to the injection moulding parameter.

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Warunki wypełniania formy przy wtryskiwaniu tworzyw termoplastycznych

Zawistowski H., Zięba Sz.

Mechanik

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2013

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R. 86, nr 4

302--308

PL

W artykule podano informacje dotyczące wtryskiwania tworzyw termoplastycznych, szczególnie opisano jedną z faz procesu – formowanie wyrobu. Podano założenia ogólne procesu oraz przedstawiono wiele praktycznych uwag i zaleceń dla pracowników obsługujących wtryskarki. Główną uwagę zwrócono na fazę wtrysku do gniazda formy, która ma istotny wpływ na geometrię, kształtowanie własności użytkowych i strukturę wypraski.

EN

Subject of the article are the aspects and parameters of thermoplastic injection. Main topic is moulding – one of the key phases in this process. In the text you can find the information about overall conditions of the process as well as many remarks and practical recommendations for the operators of injection moulding machines. Author emphasizes the injection to the mould form, which is critical for the final result: the shape, structure and functional properties of the moulded pieces.