Rationalization of manufacturing of plastic injection moulds by abrasive waterjet

Radvanská, Agáta; Petrů, Jana; Monková, Katarína; Zlámal, Tomáš; Hreha, Pavol; Somsak, Matej; Andrej, Andrej; Šafran, Branimir

doi:10.17559/tv-20130502125348

Cited by 8 publications

(7 citation statements)

References 8 publications

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“…This technology has many advantages: wide range of options [18], including the processing of complex shapes, cutting of a large variety of materials [5,6,17], and high effectiveness under extreme conditions (hazard of How to cite: Perec, A., Disintegration and recycling possibility of selected abrasives for water jet cutting DYNA, 84(203), pp. 249-256, December, 2017. explosion or fire, underwater works up to a depth of 6000 m, etc.)…”

Section: Introductionmentioning

confidence: 99%

Disintegration and recycling possibility of selected abrasives for water jet cutting

Perec

2017

DYNA

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This paper presented a study of abrasive disintegration in a 400 MPa Abrasive Water Jet (AWJ). Abrasive particle size and distribution play a major role in machining and cutting efficiency of abrasive water jets. Tested garnet abrasive, commonly used in the abrasive water jet treatment, and corundum. It is of scientific interest to observe the disintegration of these particles which have been interactive with uncommonly used abrasive materials. Time impact of abrasive grains on the workpiece is very short and not all the grain in the stream of being able to do the work of cutting, you should expect the possibility of recovering the abrasive treatment. Considerable importance is the increase in cutting capacity crushed grains due to reveal new cutting edges. Based on a feasibility study this paper will present some results on achieved cutting data and shows also wear of the used focusing tube -the main part responsible for the formation of the jet.Keywords: Abrasive; water jet; grain size; recycling.Valoración de la desintegración y reciclaje de los componentes abrasivos en procesos de cortes con agua ResumenEste trabajo presentó un estudio de la desintegración abrasiva en un chorro de agua abrasivo de 400 MPa (AWJ). El tamaño y la distribución de partículas abrasivas juegan un papel importante en el mecanizado y la eficacia de corte de los chorros de agua abrasiva. Abrasivo de granate probado, comúnmente utilizado en el tratamiento con chorro de agua abrasivo y corindón. Es de interés científico observar la desintegración de estas partículas que han sido interactivas con materiales abrasivos poco comunes. El impacto del tiempo de los granos abrasivos en la pieza de trabajo es muy corto y no todo el grano en la corriente de poder hacer el trabajo de corte, debe esperar la posibilidad de recuperar el tratamiento abrasivo. Considerable importancia es el aumento en la capacidad de corte de granos triturados debido a revelar nuevos bordes de corte. Con base en un estudio de factibilidad, este documento presentará algunos resultados sobre los datos de corte obtenidos y muestra también el desgaste del tubo de enfoque utilizado, la principal parte responsable de la formación del chorro.Palabras clave: Abrasivo; chorro de agua; tamaño de grano; reciclaje.

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Section: Introductionmentioning

confidence: 99%

Disintegration and recycling possibility of selected abrasives for water jet cutting

Perec

2017

DYNA

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“…It is also important to consider how the crane will be moving, how often it will be used, and how it will be supported. [10] Studied tower crane, type POTAIN E10-14C, was made from plastics according to standardized norms of European model trains NEM (Normen Europäischer Modellbahnen) in reduced scale 1:87. It is shown in Fig.…”

Section: Static Analysis Of a Tower Cranementioning

confidence: 99%

Preliminary analysis of tower crane as a type of truss structure

Hric¹,

Tkac²,

Matisková³

et al. 2019

MATEC Web Conf.

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Truss structures are part not only technical practice but also our everyday life. It is very important to be designed safely. One of the tools that help a designer to avoid errors and to make the right decisions about a structure material, beam profile, shape of rod construction, etc. is virtual analysis. The article deals with the preliminary study of tower crane, which can be considered as the truss structure. Various types of structures are described in the introduction. The main part of the article is devoted to static analysis of the crane. The physical 3D model was prepared in reduced scale according to standards of European model trains NEM (Normen Europäischer Modellbahnen). Axial forces, stresses in beams, as well as the maximum possible load have been specified by analytical method. The strain analysis of crane has shown that the primary design of the structure was not acceptable and the construction would not be able to lift up required weight. Results were verified by virtual simulation in software Robot Structural Analysis. Therefore, the truss was reinforced by additional bars and newly remodelled tower crane has been tested to specify the maximum load of external weight.

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“…Environmental aspects play big role in decision analyses, at which many other aspects are usually necessary to take into account, but the optimization criteria considering the pollution have a great robustness and effect on the final decision very much. [12] New technologies in all fields of industry are developed today that try to be environmentally friendly. However, not just the technology itself, but also the testing conditions, equipment used during the experiments, as well as the waste material processing are set in the way to be favorable to the global environment including logistics.…”

Section: Figmentioning

confidence: 99%

Some Aspects of Importance of Environment Friendly Logistics

Hricová¹,

Duchek²,

Edl³

2018

Proceedings of the 3rd EAI International Conference on Management of Manufacturing Systems

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The article deals with very topical problems as nowadays environment protection is very actual and one of the most obvious areas is freight transport, because it is an important creator of greenhouse gas and environment pollution. Countries face to big public pressure to decrease negative ecological but also economical and social impacts of freight transport. The aim of the article is also showing how to deal with improving of environmental performance of freight transport as there are many ways how to reduce carbon dioxide (CO 2) in international road and rail freight transport. Generally actions could be divided to technical and non-technical measures.

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Rationalization of manufacturing of plastic injection moulds by abrasive waterjet

Cited by 8 publications

References 8 publications

Disintegration and recycling possibility of selected abrasives for water jet cutting

Disintegration and recycling possibility of selected abrasives for water jet cutting

Preliminary analysis of tower crane as a type of truss structure

Some Aspects of Importance of Environment Friendly Logistics

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