Cylinder liner manufacturing process
AssigneeUsui Kokusai Sangyo Kaisha Limited
InventorMasayoshi Usui
Life of this patent
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Abstract
A cylinder manufacturing process including the steps of: pressing an annular member of steel onto the outer circumference of one end of a cylindrical tube, which is made of steel and cut to a desired length in advance, and soldering it with a metal solder to form a flange wall; inserting the cylindrical tube portion into that portion of a mold, which has an internal diameter slightly larger than the external diameter of the tube; pressing the tube radially, while being set by fixing the flange wall, to increase the diameter of the tube with a plug which is made movable while being fitted therein and which has a slightly larger diameter than the internal diameter of the tube; and finishing the other end of the tube to product sizes.
Claims8
A cylinder manufacturing process comprising the steps of:
- providing a cylindrical steel tube having opposed ends, an outer circumference defining an initial external diameter and an inner circumference defining an initial internal diameter;
- pressing an annular member of steel onto the outer circumference of one said end of the cylindrical tube;
- soldering the annular member to the tube with a metal solder to form a flange wall;
- inserting the cylindrical tube into a mold which has an internal diameter slightly larger than the initial external diameter of said tube;
- fixing said flange wall externally on said mold;
- providing a plug which has a slightly larger diameter than the initial internal diameter of said tube;
- urging said plug through the tube for increasing the internal and external diameters of the tube;
- and finishing the end of said tube opposite the flange wall.
Dependencies are inferred from the claim text.