Title:
CYLINDER BLOCK AND PROCESS FOR MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2009/014107
Kind Code:
A1
Abstract:
A horning method for a cylinder liner formed by impregnating a ferrous porous
sintered body with an Al alloy from the outer circumferential side of the sintered
body. The method is characterized by consisting of the first grinding step of
vertically traveling a first grinding wheel resulting from solidification
of diamond abrasive grains with a first coarseness, while rotating the same,
along the axial direction of the cylinder liner and the second grinding step of
vertically traveling a second grinding wheel resulting from solidification
of cubical crystal boron nitride (CBN) abrasive grains being finer than the first
coarseness, while rotating the same, along the axial direction of the cylinder
liner.Accordingly, even when the cylinder is produced by casting a ferrous porous
sintered body in an Al alloy, there can be obtained a cylinder liner that is favorable
in surface properties and has crosshatch streaks.
Inventors:
TANIZAWA MOTOHARU (JP)
KINOSHITA KYOICHI (JP)
KINOSHITA KYOICHI (JP)
Application Number:
PCT/JP2008/063084
Publication Date:
January 29, 2009
Filing Date:
July 14, 2008
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
TANIZAWA MOTOHARU (JP)
KINOSHITA KYOICHI (JP)
TANIZAWA MOTOHARU (JP)
KINOSHITA KYOICHI (JP)
International Classes:
F16J10/04; B22D19/00; B22D19/08; B24B33/02; F02F1/00
Foreign References:
| JP3800510B2 | 2006-07-26 | |||
| JPH04189465A | 1992-07-07 | |||
| JP2004116707A | 2004-04-15 |
Attorney, Agent or Firm:
OHKAWA, Hiroshi (Nakamura-ku Nagoya-sh, Aichi 02, JP)
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