Two weeks ago, Patently Apple released an IP report titled “Apple’s third patent application for future MacBooks and iDevices using a Titan base and a polymer or glass cover was released last week.” Today, the US Patent and Trademark Office officially granted Apple a patent relating to the use of titanium entitled “Titanium Parts Having a Sanded Surface Texture.”
The patent granted by Apple describes future devices such as a MacBook using a titanium substrate having a textured surface.
Apple states that it may be desirable to etch titanium while maintaining a high gloss surface finish via a sandblasting process that gives the sandblasted and etched titanium part a fine scale roughness. In this way, the sandblasted and etched titanium piece has a distinctive surface finish that reflects both diffuse and specularly visible light. As a result, the sandblasted and etched titanium part differs both in structure and appearance from a conventional sandblasted titanium part and from a chemically etched titanium part.
The process or texturing of the surface of titanium alloys leads to a low shiny, matte surface finish, as a high gloss surface finish, it is generally cosmetically unsuitable for portable electronic devices in the consumer industry.
Apple’s patent FIG. 1 below illustrates perspective views of various devices capable of supporting titanium surfaces; figure. 13 illustrates a flowchart of a method of forming a metal part.
For details, see Apple patent 10,901,458.