Corrosion of materials used as cutting tools of wood

Gauvent, M.; Rocca, Emmanuel; Méausoone, Pierre-Jean; Brenot, Pascal

doi:10.1016/j.wear.2006.03.036

Cited by 19 publications

(10 citation statements)

References 4 publications

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“…However, to verify this hypothesis wear tests have to be conducted. For the WC cutting tools matrix wash out and grain pull out were found to be the wear mechanism, as it has already been shown by several authors …”

Section: Resultssupporting

confidence: 60%

“…) and 64 h of immersion these defects become more abundant and increase in size. The high quality tungsten carbide (WC sup) is more resistant, nevertheless defects are visible for immersion ≥32 h. Corrosion by tannic acids is an issue for commercial hard metal wood cutting tools, as it weakens the binder phase and facilitate grain pull out . The Si 3 N 4 /SiC composites did not show any change of the surface state (Fig.…”

Section: Resultsmentioning

confidence: 99%

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Lifetime and Wear Behavior of Near Net Shaped Si₃N₄/SiC Wood Cutting Tools

Strehler

Ehrle

Weinreich

et al. 2012

Int J Applied Ceramic Tech

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The introduction of ceramics into the market of wood cutting tools has been difficult because of the generally low toughness of ceramics which causes brittle failure. That is why the improvement of mechanical performance of ceramics with potential to be used as cutting tools is important. The newly developed Si3N4/SiC wood cutting tools have a bending strength of 740 MPa, a fracture toughness of 5.4 MPam1/2, a hardness of 16.8 GPa and a grain size of 1 μm. These Si3N4/SiC tools were tested in a lifetime cutting trial on wood and showed twice as long lifecycles than standard tungsten carbide tools. Furthermore, the static corrosion resistance in tannic acid, the friction coefficients between wood and the tool material and the cutting forces were measured for both the ceramic composite and the tungsten carbide tools.

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Section: Resultssupporting

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Lifetime and Wear Behavior of Near Net Shaped Si₃N₄/SiC Wood Cutting Tools

Strehler

Ehrle

Weinreich

et al. 2012

Int J Applied Ceramic Tech

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show abstract

“…It was demonstrated by analysing the tool life data that under such conditions the major part of the total wear was due to corrosion 1. That was also supported by other studies 2, 3.…”

Section: Introductionsupporting

confidence: 72%

Corrosion behaviour of tool steels in tannic acids

Winkelmann

Badisch

Ilo

et al. 2009

Materials & Corrosion

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It is well known that cutting knifes in the wood industry often suffer from corrosion. Investigations showed that the corrosiveness of different wood types is responsible for a major part of the damage, and that different woods have a different corrosive impact. It is revealed that tannin, a water-soluble acid, which can be found in all woods in different concentrations, is the most aggressive acid contained in the wood, and so it is responsible for the main part of the corrosive attack. In view of the above, the ability of different cold-work steels to resist corrosion caused by tannic acid has been investigated. Often corrosion is measured by the mass loss of the sample divided by the surface of the sample under certain conditions during a fixed period of time. One problem with this method is that there is also a weight gain caused by oxidation or by other side reactions at the samples surface. So in some cases the weight of the sample even increases during the testing time, which makes the quantification of the corrosion impossible with this method. Due to the reasons already mentioned, another method was used to quantify the test results. This method is based on inductive coupled plasmaoptical emission spectral analyses (ICP-OES), where the released Fe is quantified. The results of the corrosion resistant tests get correlated to the microstructure and the elemental composition of the analysed cold-work steels. The present investigations improve the understanding of important material parameters to enhance the corrosion resistance against tannin. It is revealed that the higher the primary carbide concentration is the more Cr or other passivating elements are necessary in the matrix to show a good protection against corrosion by tannin. Three materials with different elemental compositions have been investigated, and for one of those materials the influence of different heat treatments was also analysed. The investigations could show that annealing parameters and freeze-cycle processing (FCP) have less impact on the corrosion resistance to tannin than elemental composition and austenitising temperature.

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“…Instead, contamination with coarse silica during the harvesting and storage of timber/lumber is seen to contribute in a larger way to corrosion. It is also suggested that the mechanical properties of tool material at the tip, or even coating materials, can be altered by corrosive wear (Gauvent et al 2006). This can allow the effects of abrasive wear to become more prominent or even result in brittle failure.…”

Section: Causes Of Tool Wearmentioning

confidence: 99%

A Review of Wood Machining Literature with a Special Focus on Sawing

Naylor¹,

Hackney²

2013

BioResources

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In this review, fundamental wood machining research is evaluated to determine the general cutting mechanics of simple, orthogonal, and oblique cutting tools. Simple tool force trends and chip formation characteristics are indentified here, along with the cause and effects of tool wear. In addition to this, specific methods of evaluating sawing processes have been investigated. These include the use of piezoelectric dynamometers to record tool forces and high speed photography to evaluate chip formation. Furthermore, regression analysis has been previously used to identify tool force trends with respect to both tooth geometry parameters and work-piece properties. This review has identified the original findings of previous research. This will allow for further original research to be conducted.

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Corrosion of materials used as cutting tools of wood

Cited by 19 publications

References 4 publications

Lifetime and Wear Behavior of Near Net Shaped Si₃N₄/SiC Wood Cutting Tools

Lifetime and Wear Behavior of Near Net Shaped Si₃N₄/SiC Wood Cutting Tools

Corrosion behaviour of tool steels in tannic acids

A Review of Wood Machining Literature with a Special Focus on Sawing

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Corrosion of materials used as cutting tools of wood

Cited by 19 publications

References 4 publications

Lifetime and Wear Behavior of Near Net Shaped Si3N4/SiC Wood Cutting Tools

Lifetime and Wear Behavior of Near Net Shaped Si3N4/SiC Wood Cutting Tools

Corrosion behaviour of tool steels in tannic acids

A Review of Wood Machining Literature with a Special Focus on Sawing

Contact Info

Product

Resources

About

Lifetime and Wear Behavior of Near Net Shaped Si₃N₄/SiC Wood Cutting Tools

Lifetime and Wear Behavior of Near Net Shaped Si₃N₄/SiC Wood Cutting Tools