Title:
皿ばね及びその製造方法
Document Type and Number:
Japanese Patent JP5456396
Kind Code:
B2
Abstract:
A metal strip 10 is bent to form a ring and end parts 12 and 14 are connected to each other. An electron beam 26 may be defocused and emitted to a welded section 20 along a crosswise direction of the metal strip 10. Next, a focal point 28 of the electron beam 26 may be focused onto a weld-melted portion 25 to execute electron beam welding. Subsequently, the electron beam 26 may be defocused emitted to the welded section 20 along the crosswise direction of the metal strip 10, and the welded section 20 may be further cooled. The average of the dendrite secondary arm spacing of the weld-melted portion may fall within a range of 7 to 30 mum.
Inventors:
Eiji Mizuno
Yuichi Hirata
Yuichi Hirata
Application Number:
JP2009164605A
Publication Date:
March 26, 2014
Filing Date:
July 13, 2009
Export Citation:
Assignee:
Chuojo Co., Ltd.
International Classes:
F16F1/32; B23K15/00; F16F1/02
Domestic Patent References:
| JP6106277A | ||||
| JP7229412A | ||||
| JP2003329072A | ||||
| JP58053390A | ||||
| JP1202390A | ||||
| JP9155588A | ||||
| JP3226546A | ||||
| JP2008212972A |
Attorney, Agent or Firm:
Kaiyu International Patent Office
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