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2 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2 2018

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The wear curves of nitrogen-implanted WC-Co indexable knives during particleboard milling

Wilkowski J., Wachowicz J., Barlak M., Werner Z., Böttger R.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2018

No. 104

395--399

The paper presents the wear curves of WC-Co indexable knives during particleboard milling. The knives were previously nitrogen implanted to a dose of 1e17 cm-2 , at two different ion energies - 5 and 500 keV. The WC-Co composites with small WC grains (up to 0.5 μm) and low cobalt content (up to 2.5%) were used. These materials exhibit high hardness and, at the same time, low fracture toughness. Particleboard were milled using a CNC machining center. Longer tools life was obtained for blades implanted with energy of 500 keV. The catastrophic blunting (large chipping of the cutting edge) was more common for blades implanted at 5 keV ion energy.

SIMS depth profile analysis of WC-Co composite used in wood materials machining after nitrogen ion implantation

Wilkowski J., Barlak M., Konarski P., Böttger R., Werner Z.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2018

No. 104

400--404

The paper presents the analysis of depth profiles WC-Co samples obtained using the SIMS method. The surface of samples was modified in the process of nitrogen ions implantation. Secondary ion mass spectrometry (SIMS) is a very useful technique for the analysis of layered systems. It is based on the primary ion beam sputtering of solids and mass analysis of the emitted secondary ions. The results show a high correspondence between the nitrogen depth profiles obtained in the SUSPRE modeling and in the SIMS experiment.