In the following article new technologies for the production of dental implants are presented. Using the best achievements of mechanical engineering, such as CAD/CAM and additive technologies, entirely new opportunities for increasing complexity, geometric accuracy, speed, and production efficiency of dental products are discovered.
The key factor for high quality embroidery is the precision with which the individual stitches are realized in the plane of frame XY. For this purpose, the dispersion in the size of each step on X and Y axes are measured, depending on the step length and the machine speed. The studies were carried out in the entire stroke of the two axes. To evaluate only the positioning error of each individual step the measurements without removing the embroidery fabric from the frame are made in order to eliminate deformations caused by fabric relaxations. The results obtained are particularly relevant for evaluating the ability to produce elements as small as possible.
Purpose
The purpose of this study is to investigate the influence of the printing temperature on several tribological parameters.
Design/methodology/approach
Polylactic acid (PLA) samples are produced at different printing temperatures. Results for the influence of the printing temperature on linear wear, wear intensity, wear resistance, roughness and microhardness in condition of reverse sliding friction of tribosystems with two different types of counterbodies were obtained.
Findings
In view of the experiments performed and a thorough analysis of the data obtained, it can be concluded that the printing temperature of PLA parts is directly related to their wear resistance – the higher the printing temperature, the greater the wear resistance, i.e. when making PLA machinery elements (which are working under conditions of friction and wear, e.g. gears, plain bearings and so on), it is appropriate to print them at a higher temperature.
Originality/value
To the best of the authors’ knowledge, the topic of this study is original and essential for future developments.
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