Title:
SURFACE MODIFICATION METHOD FOR LIGHT METAL CASTING
Document Type and Number:
Japanese Patent JP2020001086
Kind Code:
A
Abstract:
To provide a surface modification method for a light metal casting, which enables a surface to be further refined in a location, particularly requiring strength, of a surface of the light metal casting by a friction stirring process.SOLUTION: A surface modification method for a light metal casting includes a friction stirring process in which the casting is surface-modified by rotating and feed-moving a rotating shaft and a rotor in the state of pressing the rotating shaft and the rotor against a casting surface. The side, on which the rotative direction and feed direction of the rotating shaft and the rotor correspond to each other, is positioned in a part where strength is desired to be increased by modification of the light metal casting. Thus, the rotating shaft and the rotor is feed-moved while being rotated.SELECTED DRAWING: Figure 6
Inventors:
UCHIDA YOSHIAKI
FURUKAWA MASASHI
FURUKAWA MASASHI
Application Number:
JP2018125783A
Publication Date:
January 09, 2020
Filing Date:
July 02, 2018
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B23K20/12
Domestic Patent References:
| JP2007107039A | 2007-04-26 | |||
| JP2006093125A | 2006-04-06 |
Foreign References:
| US20050139640A1 | 2005-06-30 |
Attorney, Agent or Firm:
Ken Ieiri