Patent ID: 9051633
Filing Date: 2015-06-09
Classification: B23K,C22C,C25D,Y10T

Abstract:
1. An aluminum alloy welded component including: one or more aluminum alloy members comprised of Mg: 0.3 mass % to 6.0 mass %, Cu: 0.2 mass % or less, Si: 0.1 mass % or less, Fe: 0.1 mass % or less, the balance being Al and inevitable impurities, wherein: all second phase particles dispersed within the aluminum alloy member(s) have a grain size of 5 μm or less as observed with an optical microscope; mutually-facing end surfaces of the aluminum alloy member(s) are integrally welded together along a friction stir weld that defines a welded section; and an anodized coating is disposed on an outer surface of the welded section, or on an opposite surface thereof.