Title:
CYLINDER BLOCK MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2015229969
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cylinder block manufacturing method capable of suppressing adhesion of a thermal spray material to regions other than a cylinder bore.SOLUTION: This cylinder block manufacturing method includes a step of forming a block body 10 serving as a precursor of a cylinder block and including a protrusion 13 that is provided on an entire circumference of an opening edge of a cylinder bore 11 near a crankcase 12 and that obliquely extends so that a portion of the protrusion 13 closer to the crankcase 12 is located closer to a central axis of the cylinder bore 11. Furthermore, this manufacturing method comprises: a masking step of inserting a cylindrical shield jig 20 into the block body 10 from the crankcase 12, and masking an inner wall of the crankcase 12; a thermal spray step of injecting a thermal spray material into the cylinder bore 11 of the block body 10 in a state in which the shield jig 20 is provided, and forming a coat on a wall surface of the cylinder bore 11; and a working step of removing the protrusion 13 from the block body 10 on which the coat is formed through the thermal spray step.
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Inventors:
TSUKAHARA TAKESHI
Application Number:
JP2014116668A
Publication Date:
December 21, 2015
Filing Date:
June 05, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02F1/00; F16J10/00
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda