Apple Inc.

Sean A Backs

Lucy Elizabeth Browning

Duy P Le

Masashige Tatebe

Takahiro Oshima

Thomas Johannessen

Shi Hua Zhang

Andrew J Meschke

Michael W Barnstead

Richard M Bretherton

Manufacturing methods related to anodizing of metal parts are described. In particular, pre-anodizing and post-anodizing methods for forming a consistent and defect-free interface between metal and non-metal sections of a part are described. Methods involve preventing residues from various manufacturing processes from entering a gap or space at the interface between the metal and non-metal section of the part and that can disrupt subsequent anodizing and anodic film dyeing processes. In particular embodiments, methods involve forming a barrier layer or filler layer between the metal and non-metal sections. Portions of the barrier layer or filler layer can be removed prior to anodizing. The resultant part has a well-defined and uniform space between the metal and non-metal sections that is free from visual defects.

Methods for forming defect-free anodized parts

Growing community of inventors

Belmont, CA, United States of America

Sean A Backs