نتایج جستجو برای: speed reduction
تعداد نتایج: 687168 فیلتر نتایج به سال:
The results showed that the microhardness and tensile strength of the heat-affected zone as the weakest welding zone in some samples reduced up to 30% compared to the base metal. On the other hand, a decrease in rotational speed, an increase in tool movement speed, and the number of welding passes cause grain refinement and improve mechanical properties. However, the effect of decreasing the ro...
A rotor retaining sleeve is mechanically necessary in the structure of high-speed SPM machines to prevent structural failure. However, significant eddy current loss within metal sleeves leads a reduction electromagnetic efficiency and serious thermal mechanical issues. Therefore, several techniques methods have been proposed developed reduce such losses. In this paper, helical losses by cutting...
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