Aluminum alloy because of its strong and durable, convenient coloring, good heat dissipation effect, the overall cost of continuous decline, the use of appropriate technology will greatly improve the grade of the product, in the field of consumer electronics has been more and more application, and become an important selling point of the product. In addition to the continuous improvement of the function requirements of end consumers, the appearance requirements of products are also improving to the personality, texture and taste. In this environment, consumer electronics enterprises pay more and more attention to the appearance design and material technology of products, hoping to improve the brand image and user experience.