Title:
COMPOSITE MEMBER AND CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2017/038855
Kind Code:
A1
Abstract:
A composite member (6) for joining WC-based cemented carbide members (1, 2) interposed by a joining layer (7) formed by solid-phase diffusion-joining of a joining member (3) that comprises Ti foil, and a tool comprising the composite member (6), wherein: the joining layer (7) is configured from first layers (8, 12) that are adjacent to the WC-based cemented carbide members (1, 2) and comprise a TiC phase and a metallic W phase such that the TiC phase occupies an average area of 40-60%, second layers (9, 11) that are adjacent to the first layers (8, 12) and comprise a TiCo phase and a metallic Ti phase such that the TiCo phase occupies an average area of 50-95%, and a residual Ti layer (10); and the area of the metallic W phase in the first layer (8, 12) preferably decreases gradually from the cemented carbide member side to the second layer side.
Inventors:
IGARASHI MAKOTO (JP)
FUJIWARA KAZUTAKA (JP)
FUJIWARA KAZUTAKA (JP)
Application Number:
PCT/JP2016/075425
Publication Date:
March 09, 2017
Filing Date:
August 31, 2016
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23K20/00; B22F1/00; B23B27/14; B23B27/18; C22C29/08; B22F7/00; B22F7/04
Foreign References:
| JP2007301590A | 2007-11-22 | |||
| JP2015142941A | 2015-08-06 | |||
| JPH04210379A | 1992-07-31 | |||
| US20070290545A1 | 2007-12-20 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
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