Abstract: The paper honeycomb fixture based on the magnetic field and tribology theory is introduced in a nutshell. Then the components and work principle of numerical control feeder are described. Under the condition of giving the hole-size in the meshed board on the outlet of feeder and vibration acceleration, the relation between discharges of iron powder and flow time, and the relation between discharge rate and vibration frequency, are studied by means of experiments. The methods of feed region planning, machining region distinguishing and safe feed height calculation are researched. Under the condition of credible fixture, an optimized method of feed region selection, where the whole region is meshed with squares, is proposed in order that the poured weight is decreased as much as possible.

Key words: Feeder, Friction, Paper honeycomb, Pour region