Title:
【発明の名称】内燃機関用ピストンの製造方法
Document Type and Number:
Japanese Patent JP2546259
Kind Code:
B2
Abstract:
A manufacturing method of a piston in used for an internal combustion engine. The method comprises a step of reinforcing a circumference of a top ring groove by an inorganic fiber assembly, a step of forming an oil cooking gallery by a soluble core, a step of fixing the soluble core by projections formed in a strut preventing a thermal expansion of the piston, a step of setting the soluble core in a position supported by a punch mold, and step of setting the inorganic fiber assembly in an annular groove of a lower mold.
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Inventors:
KAWABATA YASUHIRO
HARA SOICHI
HARA SOICHI
Application Number:
JP5727687A
Publication Date:
October 23, 1996
Filing Date:
March 12, 1987
Export Citation:
Assignee:
AISIN SEIKI
International Classes:
F02F3/00; B22C9/10; B22D19/00; B22D19/08; B22D19/14; F02F3/08; F02F3/22; (IPC1-7): B22D19/14; B22C9/10; B22D19/08; F02F3/00; F02F3/08; F02F3/22