Moderne Schneidstoffe im Einsatz |
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Authors: | E. Heimbrand |
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Affiliation: | 1. Ledermann GmbH. & Co., Horb a. Neckar
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Abstract: | Demands on modern cutter materials such as optimum cut surfaces and simultaneous high cutting capacities with long service lives have been considered in the development of new types of hardalloy and polycristalline diamonds. The performance of cutters made of new hardalloys is demonstrated e.g. in cutting particleboard with circular saws and in sizing of particleboard with milling tools. Test series established the optimum geometry of cutter edge for PKD-edges and determined the influence of edge quality on wear and the relation of edge retreat to feed length. Comparisons of hardalloy cutter service lives were made in different operations on particleboard edges. Service lives showed a relation of hardalloy to PKD of 1∶30 up to 1∶240 in favor of PKD-cutters, as against 50 to 100 times higher costs of investment and maintenance for PKD tools. |
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