METHOD FOR CONTROLLING POWDER COMPACTING APPARATUS AND COMPACTING APPARATUS

摘要

There is provided a method for controlling a powder compacting apparatus including: a die having a hollow; an upper punch; a floating lower punch; a first actuator that pushes down the upper punch; a second actuator that controls a floating load of the floating lower punch; and a stopper that defines a pressurization stop position of the floating lower punch. The powder compacting apparatus is configured such that the first actuator is operated to push down the upper punch to pressurize powder charged into the cavity, and the second actuator is controlled to pressurize the powder such that a load acting on the powder during pressurization becomes a prescribed floating load required to compact the powder. The method includes causing the first actuator to reduce a descending speed of the upper punch when the floating lower punch reaches a position at a prescribed distance from the stopper.

主权项

1. A method for controlling a powder compacting apparatus including at least: a die having a hollow; an upper punch and a floating lower punch that slide in the hollow, the upper punch and the floating lower punch defining a cavity along with the die; a first actuator that pushes down the upper punch; a second actuator that controls a floating load of the floating lower punch; and a stopper that defines a pressurization stop position of the floating lower punch, the powder compacting apparatus configured such that the first actuator is operated to push down the upper punch to pressurize powder charged into the cavity, and the second actuator is controlled to pressurize the powder such that a load acting on the powder during pressurization becomes a prescribed floating load required to compact the powder, the method comprising
causing the first actuator to reduce a descending speed of the upper punch when the floating lower punch reaches a position at a prescribed distance from the stopper.