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A New Bending Method for Producing Polymer Sections

Nowicki M., Kłoda Ł., Żelazek K., Sikora J. W., Klepka T.

Mechanics and Mechanical Engineering

2016

Vol. 20, nr 4

569--578

The extrusion process for producing sections made of mixtures of plastics enables the manufacture of products with properties different from those of individual components of the mixture. Due to the use of the mixture of materials, produced sections acquire new characteristics, which in turn will broaden the range of their applications as well as reduce production costs. The paper presents a new method for bending sections extruded from a mixture of thermoplastics. An analysis of the process is performed using data obtained during the bending of sections made of a mixture of high density polyethylene (HDPE) and olefinic thermoplastic elastomer (TPO), each in a content of 50% by weight. The new bending method is based on the idea of new devices for bending sections described in the patent applications P. 413407 and P. 413408. In the study, the distribution of forces and bending moments occurring in the bending process are determined using the designed bending devices.