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Open AccessArticle

Study of Shear-Cutting Mechanisms on Wood Veneer

1
Institute of Machine Tools and Production Technology, Technische Universität Braunschweig, 38106 Braunschweig, Germany
2
Open Hybrid LabFactory e.V., 38440 Wolfsburg, Germany
*
Author to whom correspondence should be addressed.
Forests 2020, 11(6), 703; https://doi.org/10.3390/f11060703
Received: 15 May 2020 / Revised: 19 June 2020 / Accepted: 22 June 2020 / Published: 24 June 2020
Multi-material structures made from renewable materials are increasingly being addressed in research and industry. Especially lightweight applications based on wood and polymer materials offer an important opportunity to reduce weight and CO2 emissions, and thus create a sustainable economy. When establishing new material combinations, it is necessary to take economical and efficient manufacturing processes into count to enable the market entry. Therefore, the existing manufacturing processes needed to be adapted and improved in terms of the specific machining characteristic of the wood material. This study targets a combined process where a forming and shear-cutting process is also integrated in an injection-molding tool. The findings on the shear-cutting process of wood veneers are not widely investigated yet. Therefore, process and material-related dependences like cutting velocity, tool shape design, and preconditioning of wood veneers were examined. The target values cutting force and cutting-edge quality were used to describe the relations. The results showed specific damage and fiber fractions of the wood material compared to the isotropic materials (e.g., metal). In addition, low cutting forces appeared by realizing a drawing cut and high cutting speeds. A decrease in the cutting force with a higher moisture content could not be shown for the used wood types. View Full-Text
Keywords: wood veneer; shear-cutting process; cutting edge quality; injection molding wood veneer; shear-cutting process; cutting edge quality; injection molding
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MDPI and ACS Style

Reichel, V.; Berlin, W.; Rothe, F.; Beuscher, J.; Dröder, K. Study of Shear-Cutting Mechanisms on Wood Veneer. Forests 2020, 11, 703.

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