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In this study, the Fe-C-B system is used as a basis for alloy development of tool steels. Thereby,boron is used as hard phase forming element. The effect of chromium on the phase stability,microstructure and hard phase properties of Fe-C-B...
Most modern wear resistant materials feature a multiphase microstructure and the macroscopicwear behavior is controlled by the local mechanical properties of the single phases. Indentationtesting and in particular nanoindentation allows fo...
High mechanical loads, corrosion and abrasion decreases the life time of many tooling materialsused in the modern economy. One way to increase the wear resistance of tooling materials can befound in the addition of hard particles for examp...
Economic and political driving forces are leading to an ambitious search for substitutes for fusedtungsten carbide (FTC) in ultra-high wear-resistant metal matrix composites (MMC), which areused for mining applications. In the presented pa...
In this work microstructure of Al-base coated press-hardening steel 22MnB5, austenitized at920°C, was analyzed with respect to the phase formation at the steel/coating interface. Thereby,iron diffusion into the Al-base coating led to the f...
Hot stamping of high strength automotive body parts is a key technology to fulfill safety requirementsand CO2-emmision limit values which are made by the EU. In the last ten years, high effort was madeto improve the hot stamping process. B...
Abrasion is one of the four main wear mechanisms that is determined in components being in contactwith mineral goods. Typical examples of use are found in the processing technology duringchopping up, classification, transport and storage o...
In this present study, the mechanical properties (strength, hardness, moduli) and the drysliding properties of stoichiometric and sub-stoichiometric NbC were compared. Microhardnessand elastic properties of NbC depend from the C/Nb ratio,...
The last ten years have seen a step-change in the ability to position diamond particles in metalmatrixsegments for drilling and sawing applications. Advances in segment assembly technologyallow diamonds to be positioned at specific locatio...
To meet the requirements of today´s cutting process of natural stones thin disk-shaped tools withlarge diameter are applied at high cutting velocities. To use these tools, guiding systems for the disksare needed. Therewith, tool vibration...
In the diamond wire stone cutting process the objective is to remove a chip of material or a layer ofuniform thickness from the entire length of the cut. The aim of this study is to correlate the cuttingperformance to the characteristics o...
Compared with circular and gang sawing, diamond wire sawing is a flexible machiningmode due to its special structure characteristic. The diamond wire with the elastic steelcore bends and vibrates in sawing process. In this paper, the vibra...
Monowire block cutting machines can be used for natural stone block squaring operations and slabcutting operations from natural stone blocks. The efficient use of these machines reducesoperating costs by ensuring less diamond wire wear and...
Research has shown that it is possible to machine natural stone materials using endmill cutters with geometrically defined cutting edges as they are used in metal cuttingprocesses. The milling process can be used as an energy efficient alt...
The combined removal of steel and concrete during the removal of building structures is stilla challenge due to the different material properties and the resulting requirements on the cuttingtool. In this paper the authors will present a m...
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