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Influence of the extrusion cavity shape on the ultimate extrusion force value during pellet extrusion through multiple-cavity dies


[ 1 ] Instytut Konstrukcji Maszyn, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ 2 ] Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ P ] employee | [ SzD ] doctoral school student

Scientific discipline (Law 2.0)

[2.9] Mechanical engineering

Year of publication


Published in

Advances in Science and Technology Research Journal

Journal year: 2024 | Journal volume: vol. 18 | Journal number: no. 1

Article type

scientific article

Publication language


  • compaction
  • dry ice
  • cavity shape
  • multichannel die

EN The article describes the results of experimental research that allowed us to compare the influence of the forming channel shape and its length on the limit value of the force occurring in the process of extruding crystallized carbon dioxide using multi-channel dies. To carry out the research, the authors adopted a method described in the literature, which allows for experimenting using a sublimating material under normal conditions, at a temperature of -78.4°C. Analysis of variance was used for the statistical analysis of the experiment results, which allowed to determine the level of statistical significance of differences between individual populations. Additionally, based on the median and regression values, an attempt was made to fit a function describing the change in the tested values as a function of geometric parameters. This allowed for comparison of the impact of individual variables. The authors did not observe the research results in the available literature, they would discuss the influence of the channel shape of multi-channel systems on the value of the confining force. Therefore, according to the authors, the presented results constitute an important supplement to the available knowledge.

Pages (from - to)

118 - 128




License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

final author's version

Date of Open Access to the publication

at the time of publication

Full text of article

Download file

Access level to full text


Ministry points / journal


Impact Factor

1,1 [List 2022]

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