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The aim of this study was to determine the effect of different ratios Cr particle reinforcement on the hardness and wear resistance of Cu matrix composites produced by using (P/M) method. Cr particles were added at different weight ratios of 5, 10 and 15%, in pure Cu dust. The prepared mixtures were shaped under a pressure of 400 MPa. The shaped pieces were sintered at 900 °C for 30 min. The success...
Gears are used in the design of modern machines extensively. These gears are of various types according to their tooth profiles and tooth widths, and can be manufactured in various sizes as small as the ones in small appliances to the very large gears used in heavy industry. In addition, some of the gears have proven benefits, and universally accepted standard manufacturing methods have been developed...
In today’s studies, it is observed that spur gears can be manufactured by vertical-spindle CNC milling machines unlike conventional manufacturing methods. To this end, two different approaches have been developed, which are vertical and axial manufacturing methods. In this study, concave-convex gear wheels are the first time correctly manufactured by using the vertical cutting method. The manufacture...
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