The surface drawing process of aluminum alloy prototype models can be customized according to decoration needs Straight lines Random patterns Spiral pattern Ripples and threads.

- Wire drawing
Wire drawing is a repair process that can also have an aesthetic effect. Because there are scratches on the metal surface in some areas, a consistent scratch is made on the entire surface using a wire drawing machine to cover up the local scratches. It is best not to use<work hardening after processing, changing performance>, but scratches are difficult to avoid, so it is often used. Drawing not only removes scratches on the surface of aluminum plates, but also has a dual function of beautifying and decorating the appearance of aluminum plates.
- Straight line drawing refers to the process of machining straight lines on the surface of an aluminum alloy prototype using mechanical friction. It has a dual function of brushing off scratches on the surface of aluminum plates and decorating the surface of aluminum plates.
- Random pattern drawing is a type of irregular and indistinct matte wire pattern obtained by rubbing the aluminum alloy prototype back, forth, left, and right under the high-speed operation of copper wire brush. This type of processing requires high surface requirements for aluminum or aluminum alloy prototypes.
- Spinning pattern, also known as optical rotation, is a type of silk pattern obtained by rotating and polishing the surface of aluminum or aluminum alloy plates using cylindrical felt or diamond nylon wheels mounted on a drilling machine, mixed with kerosene and polishing paste. It is commonly used for decorative processing of circular signs and small decorative dials.
- Ripples are usually produced on a brushing machine or a polishing machine. Using the axial motion of the upper set of grinding rollers, grind and brush the surface of aluminum or aluminum alloy plates to obtain wavy patterns.
- Threading is achieved by using a small motor with circular felt installed on the shaft, which is fixed on the desktop at an angle of about 60 degrees to the edge of the table. In addition, a drag plate with a fixed aluminum plate pressure is made, and a polyester film with a straight edge is attached to the drag plate to limit the competitiveness of the threads. Using the rotation of felt and the linear movement of the drag board, a thread pattern with consistent width is rubbed on the surface of the aluminum alloy prototype.
