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Core Blowing Process - Assessment of Core Sands Properties and Preliminary Model Testing

Dańko R., Dańko J., Burbelko A., Skrzyński M.

Archives of Foundry Engineering

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2014

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Vol. 14, iss. 1

25--28

EN

The effects of filling the core box cavity and sand compaction in processes of core production by blowing methods (blowing, shooting) depend on several main factors. The most important are: geometrical parameters of cavity and complexity of its shape, number, distribution and shape of blowing holes feeding sands as well as the venting of a technological cavity. Values of individual parameters are selected according to various criteria, but mostly they should be adjusted to properties of the applied core sand. Various methods developed by several researchers, including the authors own attempts, allow to assess core sands properties on the basis of special technological tests projecting the process into a laboratory scale. The developed criteria defining a degree or a filling ability factor provide a better possibility of assessing the core sand behaviour during flowing and core box filling, which indicate the value and structure of the obtained compacting decisive – after hardening – for strength and permeability. The mentioned above aspects are analysed – on the basis of authors’ own examinations - in the hereby paper.

2

Conceptual Design of a Core Making System

Asłanowicz M., Dańko J., Dańko R., Fedoryszyn A., Fulko T.

Archives of Foundry Engineering

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2013

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Vol. 13, iss. 1 spec.

13--16

EN

The paper presents the topics related with the production of small and medium-sized cores by means of blowing methods. The basic information concerning the manufacturers of the blowing machines and the general characteristics of machines offered by them are presented. The basic design of blowing machines are presented with discussions of the theoretical works of Boenisch, Axionov and J. Dańko determining important from the technology point of view sand and air flow parameters including different methods of core box filling factors and the factor eV representing the sand ability to evacuate from the shooting chamber.

3

Szybkie łączenie za pomocą wstrzeliwania wysokowytrzymałych gwoździ

Mucha J.

Technologia i Automatyzacja Montażu

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2011

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nr 1

17-20

PL

W pracy zaprezentowano przykład praktycznej aplikacji technologii wytwarzania połączeń wykonanych w technologii wstrzeliwania łącznika. Określono możliwości przenoszenia sił przez złącze pojedyncze i podwójne dla miękkiego materiału blach ze stopu A1.

EN

This paper presents shortly the characteristics of new joining process with blowing the fastener, which is the hard steel nail. The joining process using commercially available manual blowing system has been discussed. The results of an experimental joining process for aluminum sheet metal EN AW-1050A of 2 mm thickness has been presented. The load carrying capacity of single and double joint has been tested with shearing strength test and single side tearing test.