The Effect of Mold Construction on Quality of Plastic Part Produced by Vacuum Thermoforming
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F19%3A63523397" target="_blank" >RIV/70883521:28110/19:63523397 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28610/19:63523397
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The Effect of Mold Construction on Quality of Plastic Part Produced by Vacuum Thermoforming
Original language description
Vacuum thermoforming is a manufacturing technology enabling the production of large-scale and more complex shape plastic parts. The manufacturing process can be advantageously modified, for example, by using pre-blowing or shape plugs to achieve a more uniform thickness distribution. The uniform thickness distribution, or not exceeding the thickness limit value, is important from the point of view of mechanical and also fire properties (e.g. according to regulation 118 fire safety standards). The use of computer simulations, or behavior modeling respectively, of the polymeric materials during thermoforming process, enables to save a great deal of financial cost, time and production capacity. Application of suitable rheological models (e.g. K-BKZ Wagner model, or Leonov model), it is possible to describe the behavior of the polymer sheet during pre-heating and subsequent thermoforming and thus detect possible defects at the product (webbing, chill marks, and thinning). The research is focused on evaluation of the influence of selected construction mold/part components - draft angle, curve radius, rib size and spacing, on changes in thickness distribution on the final part with the help of computer modeling.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů