Title:
表面耐摩耗焼結機械部品及びその製造方法
Document Type and Number:
Japanese Patent JP4083817
Kind Code:
B2
Abstract:
The invention concerns a mechanical part with abrasionproof surface characterized in that it comprises a sintered metallic body obtained from metallic powders and a laser-deposited cermet coating. The coating has a certain thickness whereof a portion is metallurgically bound with the metallic body. The laser deposit enables the sintered part to be surface-melted under the effect of the laser beam. The surface of the sintered part to be coated is therefore fused over a thickness ranging between 10 mum and 1 mm, which enables the surface pores to be closed, as is characteristic of sintered parts, thereby increasing its resistance to shocks. Moreover, the small surface coated at a given moment by the laser enables the self-hardening of the exposed part, following the beam displacement, by the heat-sink effect of the surrounding metallic volume. The resulting coating also has very low porosity owing to the complete fusion of the powders by laser.
Inventors:
Karon, Paul
Application Number:
JP50003699A
Publication Date:
April 30, 2008
Filing Date:
May 27, 1998
Export Citation:
Assignee:
Investor Incorporated
International Classes:
C22C29/02; B22F3/24; C23C4/10; C22C19/05; C22C19/07; C23C24/10; G06F19/00
Domestic Patent References:
| JP7070964A | ||||
| JP7194854A | ||||
| JP3215603A | ||||
| JP7097604A | ||||
| JP5086452A | ||||
| JP3110075A | ||||
| JP2200763A | ||||
| JP3027887A | ||||
| JP2054777A | ||||
| JP2166757A | ||||
| JP6200339A | ||||
| JP8312800A | ||||
| JP2081626A | ||||
| JP63183793A | ||||
| JP56035817A | ||||
| JP63004051A | ||||
| JP63105947A | ||||
| JP55008497A | ||||
| JP57042152B1 | ||||
| JP10509667A | ||||
| JP11505483A |
Foreign References:
| GB2275437A | ||||
| WO1996017716A1 | ||||
| WO1983004382A1 | ||||
| US3806692 | ||||
| US5105872 |
Attorney, Agent or Firm:
Yusuke Hiraki
Sekiya Mitsuo
Yasushi Hayakawa
Sekiya Mitsuo
Yasushi Hayakawa