Engineering Mechanics

Proceedings Vol. 21 (2015)

ENGINEERING MECHANICS 2015

Copyright © 2015 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

Z. Hutyrová, D. Mitaľ, M. Harničárová, J. Zajac, J. Valíček
pages 106 - 107, full text

The term WPC refers to any composite material containing 2 basic components ! natural fibers (used as reinforcements because of their: relatively high strength, rigidity, low cost) and plastics (the key indicator in their manufacture is to establish a sufficiently effective link of components). From the point of view of machinability, WPCs are classified as easy to work materials – as shown in the studies [1-4], etc. However, in machining, the heterogeneity of material plays an important role. Any surface defects arising as a result of “incorrect” machining lead to additional costs for repair. During machining, not only set parameters of the technology of machining process are relevant, but also mechanical properties and compatibility of the material. As an experimental material, wood filled plastic was used with a volume ratio: 30/70 % – HDPE/wooden filling. The profile was subjected to non-destructive testing method by X-rays (inspection by overexposure – to control volume defects) and testing to mechanical properties (tensile and bending test according to ISO 6892, or ISO 178).

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