Titanium and its alloys have a vast range of applications in the chemical, aeronautical and aerospace industries as well as in medical engineering, based on their high specific strength and high corrosion resistance. Regarding the fact that titanium is an expensive material, powder metallurgy can be a notably economized production solution which offers the maximum material utilization compared to shape cutting processes. Among all forming processes of metallic powder, die pressing is one of the most widespread processing methods. A common effect of this method is residual porosity in the produced parts, which has negative impacts on their mechanical stability. This study shows how the porosity can be reduced by means of induced vibration in the pressing tool. Consequently, the mechanical properties of the product can be improved. Further studies are aimed at investigating the methods of increasing the homogeneity of density allocation.
This paper presents a method for the magnetic data storage on the surface of gentelligent components.One key issue is the possibility to store customers' data on components dynamically and to read it out later on. The data storage is carried out magnetically and is demonstrated on a high-speed milling head. As such components are mostly made of light materials without magnetic properties; areas for the data storage on the surface must first be defined. Sintered components made of Mg and of hard magnetic particles have the potential to meet these requirements.
The weight reduction of components is one of the most important topics in the automotive and the aircraft industry. Sintered light metal alloys combine a low specific weight with a production process with a high utilisation of material. This paper describes a process integrated marking approach for sintered components to protect them from being copied. Herein spherical particles are placed inside at predefined positions, and different materials are used for particles and powder. The readout of the marking is based on the different physical properties of these materials. Experiments to show the feasibility of the approach were carried out. Additionally a numerical simulation was used to predict the influence of the particles on the components density distribution.
Sintered parts from steel as well as light metal alloys are becoming popular in many industrial sectors due to their advantageous product properties. Beside the good utilization of raw material and the variability in alloying the sinter technology offers the opportunity to mark parts in a unique and invisible manner. Spheric particles are used as information carrier. A quadratic 4x4 matrix with a maximum of 16 particles is placed inside a sinter part for first experiments. The defined places and number of particles result in an identification number. After sintering process the two materials are inseparably connected. The readout of the data is realized with x-ray or computer tomography due to different physical properties of the particles and the powder material.
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