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JWJ > Volume 24(1); 2006 > Article
Journal of KWJS 2006 February;24(1) :43-49.
Published online April 3, 2006.
[Technical Paper] Development of Friction Surface Modification System and Evaluation to the Effect of Process Parameter
Chang-Keun Chun, Woong-Seong Chang, Joong-Suk Noh, Tae-Whee Joung, Joong-Seon Joh




Correspondence:   Published online April 3, 2006
ABSTRACT
This paper describes the friction surface modification which has been successfully developed with the friction stir welding recently. There are several problems including just position control and backlash in conventional friction surface modification system. Therefore it has been developed the friction surface modification system which has been controlled precisely both position and force by driving hydraulic cylinder in this paper. The mechtrode rotation speed(N) and feeding speed(Vz), travel speed(Vx,y) are of critical importance for the width and thickness of the coating in friction surfacing process. But there is no theoretical method of determining interrelations between process parameters affect the coating width and thickness. As a result of DOE(design of experiment) with developed system, the coating thickness and width seemed to decrease according to increase the mechtrode rotation speed(N) and traveling speed(Vx,y), to decrease feeding speed(Vz) apparently. However as the result of regression analysis the main effect was only the mechtrode rotation speed in the coating thickness.
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