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Empirisk studie av den radiella förspänningskraftens variation i klassiska skärskruvförband / Empirical study of the radial pre-tension forcevariation in classical insert screw connectionsEriksson, Mattias January 2013 (has links)
In this study, the pre-tension force in an insert screw connection are examined in order to establish a greater understanding of the system and to facilitate the process of making new metal cutting tools. Certain especially significant design variables such as the offset, the length of the contact thread and the shank length above the threaded hole, are selected to be closely examined. A comparison of the influence on the pre-tension force between threaded holes made with a worn, versus new, threading tool is also involved in the experiment. The study is limited to handling the screw sizes M2,5 and M3,5. The results show that a regression model, with good approximation, can be fitted to the measured values. This means that, when constructing a new metal cutting tool, you can use this model to predict the resulting pre-tension force more accurately than before. The model is available as an interface in Microsoft Excel and in the experimental analysis program MODDE 9.1.
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