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3 Archives of Foundry Engineering

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Assessing the Surface Distortion of Plaster Molds Made with the Use of SLA Models

100%

Shumkov A. A. , Ablyaz T. R. , Muratov K. R.

tom Vol. 17, iss. 3

123--126

The method of determining the accuracy of polymer molds in plaster forms has been discussed. Distortion of the surface of molds and plaster molds has been assessed. It has been found that the presence of monolithic and porous structure in the samples does not change the accuracy of the surfaces when forms are prepared for removing the material of the model. It has been found that in case of full-mold casting it is more expedient to form the mold cavity with cellular adjustable structures of molding prototypes.

Studying the Technology of Creating Cortical Electrode Instruments using the Rapid Prototyping Technology

100%

Ablyaz T. R. , Shumkov A. A. , Muratov K. R.

tom Vol. 17, iss. 2

157--162

This paper shows the results of studying the technology of manufacturing cortical electrode-instruments (EI) with the use of indirect methods of the Rapid Prototyping technology. Functional EI prototypes were made by layered synthesis of the photopolymer material with the use of the stereolithography technology (SLA - Stereo Lithography Apparatus). The article is focused on two methods of indirect EI manufacturing. One of the EI prototypes was used for making a molded wax model for hot investment casting, followed by applying copper coating. The second prototype was used for applying copper plating to a prepared current-conductive layer. As a result of EDMing a steel workpiece, both EIs reached the desired depth, which is 1 mm. The copper plating applied to the EI preserves its integrity. Through the use of the casting technology, there is a possibility to cut the economic costs by 35%. Using a prototype with preliminarily applie conductive coating makes it possible to make geometrically-complex EIs.

Manufacturing Scheme of Spherical Grinding Bodies from Abrasion-Resistant Cast Iron Free of Shrinkage Defects

71%

Pustovalov D. O. , Ablyaz T. , Muratov K. R. , Sharov K. V. , Bogomyagkov A. V. , Shumkov A. A. , Pustovalov D. O. , Ablyaz T. , Muratov K. R. , Sharov K. V. , Bogomyagkov A. V. , Shumkov A. A.

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