Застосування комп’ютерно-інтегрованного проєктування для нетехнологічних виливків шахтного обладнання
This article shows the possibility of using computer-integrated design to obtain high-quality non-technological castings for mining equipment. The use of CAD/CAE programs opens up new opportunities for process engineers and designers, significantly reduces the time to develop technological processes...
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| Datum: | 2023 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | Ukrainisch |
| Veröffentlicht: |
Physico-technological Institute of Metals and Alloys
2023
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| Schlagworte: | |
| Online Zugang: | https://www.metalsandcasting.com/index.php/mcu/article/view/150 |
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| Назва журналу: | Metal and Casting of Ukraine |
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Metal and Casting of Ukraine| Zusammenfassung: | This article shows the possibility of using computer-integrated design to obtain high-quality non-technological castings for mining equipment. The use of CAD/CAE programs opens up new opportunities for process engineers and designers, significantly reduces the time to develop technological processes and manufacture of equipment. This saves the cost of the alloy by predicting the appearance of places of dislocation of defects, reduces the waste of castings, and also makes it possible to check the parts for various types of strength loads on its virtual model.
The non-technological casting “Guide” was presented in a 3D system using SolidWorks and LVMFlow programs. The casting has the form of an inverted stool with four legs. This led to the appearance in the casting of a large number of thin and thick walls that alternate. In places of transitions fillets were installed. To eliminate the accumulation of gas shrinkage porosity in the internal corners of the casting, it was proposed to increase the thickness of the legs. The casting has a great height. To withstand the hydrostatic pressure of the poured metal, it was proposed to use a sand-resin mixture.
In order to eliminate hot cracks in the casting, during crystallization in places where the lid with the legs mated, it was decided to install special ties between the legs. This technological solution eliminated the appearance of cracks in the casting. The installation of exothermic profits allowed to increase the operating efficiency of the gating system due to the exothermic reaction when the melt contacts the element and the gas pressure in the head; reduce defects on shrinkage defects; reduce the metal consumption of heads (up to 40 %) and technological allowances for the machining of head places from 15–20 mm to 4–5 mm; made it possible to install heads on any surface without disturbing the casting configuration. The developed technological process was introduced at one of the foundries in Ukraine. |
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