Title:
BLADE
Document Type and Number:
WIPO Patent Application WO/2019/003640
Kind Code:
A1
Abstract:
[Problem] With blades for cutting or machining aluminum-based workpieces having aluminum or an aluminum alloy as a starting material, since the melting point of aluminum-based workpieces is lower than that of other iron-based workpieces, in some cases high temperature frictional heat generated during processing causes aluminum shavings to melt and become fused to a base portion of the blade. If aluminum fusion marks are left on the blade, in some cases a smooth cut surface of the aluminum-based workpiece is not achieved, necessitating post-processing such as correction by machining, for example, and the blade may break, developing into a situation in which the operation of the machining device is stopped.
[Solution] Aluminum shavings generated during machining are prevented from fusing to the blade by forming layers of a phosphate film 16 and a fatty acid salt film 18 on a base portion 12 of a blade specialized for machining an aluminum-based workpiece.
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Inventors:
TSUCHIYA ATSUSHI (JP)
FUJITA SHUN (JP)
FUJITA SHUN (JP)
Application Number:
PCT/JP2018/017633
Publication Date:
January 03, 2019
Filing Date:
May 07, 2018
Export Citation:
Assignee:
KANEFUSA KNIFE & SAW (JP)
International Classes:
B23D61/02
Domestic Patent References:
| WO2003035929A1 | 2003-05-01 |
Foreign References:
| JP2010149240A | 2010-07-08 | |||
| JP2002285347A | 2002-10-03 | |||
| JP2007190642A | 2007-08-02 | |||
| JPH07276137A | 1995-10-24 | |||
| US3292237A | 1966-12-20 | |||
| JPH08257979A | 1996-10-08 | |||
| JP2004099949A | 2004-04-02 |
Attorney, Agent or Firm:
YAMAMOTO, Yoshichika et al. (JP)
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