The metal drawing of aluminum alloy plates can be divided into straight grain drawing, random grain drawing and thread drawing.
Straight grain drawing，It refers to machining a straight line on the surface of the aluminum plate by mechanical friction. It has the dual functions of removing scratches on the surface of the aluminum plate and decorating the surface of the aluminum plate.
Random wire drawing refers to an irregular, matte silk pattern without obvious lines obtained by rubbing the aluminum plate forward, backward, left and right under a high-speed running copper wire. This kind of processing has higher requirements on the appearance of aluminum or aluminum alloy plates.
Thread drawing utilizes the rotation of the felt and the linear movement of the carriage, and the surface of the aluminum plate is rotated to rub out thread lines with the same width
