| 20120139148 | MANUFACTURING METHOD FOR DIFFUSER - A manufacturing method for a diffuser includes a first process in which a cylindrical solid material with a fiber flow extending in an axial direction is forged to form a first shaped component which has disk-shaped top and bottom surfaces; a second process in which the first shaped component is rotated degrees and forged in a direction perpendicular to the axial direction to form a second shaped component which has a flange and a cylindrical portion; and a third process in which the second shaped component is press-formed in a direction perpendicular to the fiber flow to form a third shaped component which has a flange including a central hole portion and an outer edge engaging portion with a fiber flow extending in a radial direction, and a bottomed cylindrical portion including a communicating hole. | 06-07-2012 |
