| 摘要 |
PURPOSE:To permit extremely easy drawing of such as wire drawing, pipe drawing or the like in a device for drawing by oscillating a drawing die or material to be drawn. CONSTITUTION:A working material 2 is drawn by a die 1 by the force of a chuck 3. A lubricating oil is forcibly supplied through a nozzle 4 for supplying the lubricating oil from the back relief side 11 of the die 1 and an ultrasonic oscillator 5 is connected to the die 1. The die 1 moves forward or backward during drawing so that the die 1 is oscillated to be effectively lubricated. The drawing of the pipe contg. a packing material is thus made extremely easy and the behavior of the packing material during drawing of the pipe is made controllable. |
