| 摘要 |
PROBLEM TO BE SOLVED: To provide intake/exhaust system piping for an engine, which is obtained by joining a flange and a pipe to each other without performing welding, and a method of manufacturing the same.SOLUTION: Intake/exhaust system piping 1 for an engine comprises an annular lock part 4 which comes in contact with an end face 3a of a flange 3 by bending one end part 2b of a pipe 2 toward the outside of the pipe 2 in a radial direction after making the one end part 2b of the pipe 2 be penetrated and inserted into an insertion port 3b of the flange 3, and making the one end part of the pipe 2 protrude from the end face 3a of the flange 3. Furthermore, the intake/exhaust system piping 1 for the engine comprises a caulked part 5 in which an outer peripheral face of the pipe 2 is brought into pressure-contact with or press-fixed to an inner peripheral face of the insertion port of the flange 3 by pressing the pipe 2 which is arranged in the insertion port 3b of the flange 3 in a diameter-enlarging direction toward the outside from the inside of the pipe 2. |
