Through controlling the processing technique, reasonable designing for molding runner, optimizing the equipment construction and dimension, it could get the high effective elongation flow field.
If a current with proper intensity has been switched on, the goal of controlling the melting and welding dimension effectively around the crack tip can be obtained.
文中给出的算例表明，适当控制通入的电流强度，可以达到有效控制裂尖熔化区尺寸以及形成焊口的目的。
3
The paper introduces the difficulties of roller spray welding technique such as controlling for distortion, keeping for layer evenness and dimension of roller diameter.