Method for producing cylinder block

摘要

A method for producing a cylinder block capable of providing sufficient bonding between the cylinder liner and a block body. The cylinder block producing method includes an inner peripheral surface roughening process, outer peripheral surface roughening process, adiabatic particle adhesion process, and melt bonding process. In the inner peripheral surface roughening process, shot blasting is performed to the inner surface of the cylinder liner. In the outer peripheral surface roughening process, semi-spherical dimples are formed on the outer surface of the cylinder liner by sinking the shot balls by their semi-spherical amount into the liner by means of shot blasting. In the melt-bonding process, a molten metal is filled around the cylinder liner to form a cylinder block while the liner is held by a metal mold and while a part of the metal mold is abutted to the inner surface of the cylinder liner.