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1

Wear resistance of photopolymer material for screen printing plate manufacturing

Maik Volodymyr, Khariv Marian, Kulak Mikhail

Acta Poligraphica

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2020

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Vol. 15

11--18

EN

The study of the wear resistance of photopolymer material for screen printing plates manufacturing by laser engraving has been done to obtain the main results to determine its performance in this work. As a result of the research of the wear of the developed photopolymer material, it has been established that it has the necessary properties and can be used as a basis for the printing plate manufacturing for screen printing method. A statistical model of the material wear has been constructed. The adequacy of the model has been confirmed by comparing the results of the calculations with the experimental data. The suggested model allows predicting the wear resistance of the polimer material. The simulation results can be used later in the study of other plate materials.

PL

Przeprowadzone zostało badanie odporności na zużycie płyt sitodrukowych wykonanych z materiału fotopolimerowego, sporządzonych metodą grawerowania laserowego. Celem badania było określenie charakterystyk wydajności płyt. W badaniach zużycia materiału fotopolimerowego ustalono, że ma on niezbędne właściwości i może być wykorzystywany jako podstawa do produkcji płyt do sitodruku. Skonstruowano model statystyczny zużycia materiału. Adekwatność modelu potwierdza się w porównaniu z wynikami obliczeń przeprowadzonych na danych eksperymentalnych. Proponowany model pozwala przewidzieć odporność na zużycie materiału polimerowego i można go wykorzystać w badaniach również innych materiałów do produkcji form.

2

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

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

Archives of Foundry Engineering

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2017

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Vol. 17, iss. 2

157--162

EN

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.

3

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

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

Archives of Foundry Engineering

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2017

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Vol. 17, iss. 3

123--126

EN

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.

4

Properties of Photocurable Resins Used in a Process of Rapid Prototyping Components of Aircraft Structures

Bernaczek J., Budzik G., Oleksy M., Śliwa R., Mikulski P.

Machine Dynamics Research

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2016

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Vol. 40, No. 3

25--39

EN

This paper presents the results of photopolymers used in rapid prototyping processes exploited in manufacturing of aircraft structural components on the basis of aircraft wheel hubs prototyping methods as Jetting Systems - JS and Stereolithography - SLA. Resins used in these techniques undergo polymerization process under specified conditions to form successive layers of RP model. Depending on the type of resin, the apparatus parameters, operating modes and model setting on the working platform various properties of prototypes are obtained. Knowledge of the actual physical, chemical (gel time, curing temperature, heat resistance) and mechanical parameters (of tensile strength, modulus, toughness, etc.) of the resin allows adequate definition of conditions and size of the load for RP model on the bench and introduce relevant characteristics of the resin in aim to determine the boundary conditions in numerical modeling including finite element method. The paper presents a comparative analysis of the parameters specified by the manufacturer differing from the actual tested strength parameters of RP resin. The standard test models were prepared under certain RP process parameters used to manufacture prototypes of aircraft wheel hubs. Desirability of special materials study for programming of SLA and JS prototyping processes was demonstrated by documented achievement of very good aircraft wheel hub prototype ensuring good prototyping effect for other elements of aircraft structures manufactured using different methods.

5

The application of a photopolymer material for the manufacture of machine elements using rapid prototyping techniques

Andrearczyk A.

Logistyka

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2015

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nr 4

8628--8635, CD3

EN

The paper discusses the application of polymer resin for 3D printing. The first section focuses on rapid prototyping technique and properties of the photopolymer, used as input material in the manufacture of machine components. Second part of the article was devoted to exemplary 3-D-printed elements for incorporation in machines. The article also contains detailed description of problems encountered in implementation of the selected rapid prototyping technology and the ways to deal with them.

PL

W artykule omówiono zastosowanie żywicy polimerowej w wydruku przestrzennym. W pierwszej części przedstawiona została technologia szybkiego prototypowania oraz właściwości fotopolimeru wykorzystywanego do tworzenia elementów maszyn. Druga część artykułu została poświęcona przykładowym wydrukom i ich zastosowaniom w maszynach. Artykuł zawiera również opis problemów na jakie napotkano się w trakcie korzystania z wybranej technologii szybkiego prototypowania oraz ich eliminację.

6

Wykorzystanie materiałów fotoutwardzalnych w procesach szybkiego wytwarzania

Górski F., Wichniarek R.

Zeszyty Naukowe Politechniki Poznańskiej. Budowa Maszyn i Zarządzanie Produkcją

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2010

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Nr 13

25-34

PL

W artykule przedstawiono możliwości, jakie wiążą się z wykorzystaniem materiałów foto-utwardzalnych (fotopolimerów) w procesach szybkiego wytwarzania prototypów. Opisano budowę i właściwości fotopolimerów oraz możliwości ich modyfikacji w celu uzyskania pożądanych dodatkowych właściwości. Zamieszczono przegląd metod rapid prototyping wykorzystujących fotopolimery. Zaprezentowano również zestawienie wybranych, nowoczesnych fotopolimerów i opisano ich właściwości, także w porównaniu z innymi materiałami wykorzystywanymi do szybkiego wytwarzania prototypów w celu wykazania użyteczności materiałów fotoutwardzalnych i technik je wykorzystujących do szybkiego wytwarzania prototypów.

EN

This paper presents possibilites related with application of photohardened materials (photopo-lymers) in rapid prototyping. Composition and properties of photopolymers were described, along with modification possibilites for obtaining new properties. Paper also contains a short review of RP methods involving photopolymers. Several selected modern photopolymer materials were characterised, also in comparison with other RP materials, aiming to demonstrate usefulness of photopolymers and techniques which use them for rapid prototyping and manufacturing.