| 摘要 |
This invention is a machine and a method for forming part cylindrical half bearing shells from a continuous elongated strip of lined material in which the strip is moved forward into the press in steps and each movement of the press effects a number of different operations on blanks constituted by successive transverse lengths of the strip. In one pressing step a movement of a die perpendicular to the direction of stepping first severs a blank from the rest of the strip and then forms it to shape in a coining operation. |
