ROLL-FORMING TOOL FOR CREATING A NONCIRCULAR FEATURE, METHOD OF CREATING A NONCIRCULAR FEATURE, AND METHOD OF ASSEMBLING A PUMP HAVING A NONCIRCULAR JOINT

摘要

A tool for roll-forming a noncircular lip of a component includes a central shaft, first and second axles, and first and second rollers. The central shaft has a longitudinal axis. The central shaft is adapted to rotate about the longitudinal axis. The axles extend from and are fixed to the central shaft. The axles have respective first and second lateral axes that extend substantially perpendicular to the longitudinal axis. The rollers are rotatably coupled to respective axles, adapted to rotate about the respective lateral axes, radially spaced with respect to the longitudinal axis, and circumferentially spaced with respect to each other. The first and second rollers are adapted to concurrently operably engage the noncircular lip, and deform the noncircular lip.