Method for Producing Patterned Plate

Abstract

A device producing a patterned plate includes a die and an electromagnetic actuator. The die includes a patterned surface with a pattern formed thereon and a fracturing part. The tubular work piece is disposed between the die and the electromagnetic actuator such that walls of the tubular work piece correspond to walls of the die. When the electromagnetic actuator is supplied with a current pulse, an eddy current is induced in the tubular work piece, generating a repulsive force between the electromagnetic actuator and the tubular work piece. Therefore, the tubular work piece impacts the die, and a forming surface of the tubular work piece is deformed against the patterned surface and the fracturing part, thus replicating the pattern of the patterned surface onto the forming surface. At the same time, the tubular work piece is fractured at the position corresponding to the fracturing part.

1 . A method for producing a patterned plate from a tubular work piece, comprising:
 disposing the tubular work piece between a die and an electromagnetic actuator, wherein walls of the tubular work piece correspond to walls of the die and a forming surface of the tubular work piece corresponds to a patterned surface of the die with the patterned surface having a pattern formed thereon;   supplying a current pulse to the electromagnetic actuator to induce a current in the tubular work piece, thus generating a repulsive force between the electromagnetic actuator and the tubular work piece, wherein the repulsive force then causes the walls of the tubular work piece to impact on the walls of the die and deforms the forming surface against the corresponding patterned surface to take on the pattern; and   cutting the patterned forming surface and separating the patterned forming surface from the tubular work piece to form a plate.   
     
     
         2 . The method for producing a patterned plate as claimed in  claim 1 , further comprising placing the die inside the electromagnetic actuator before disposing the tubular work piece between the die and the electromagnetic actuator, wherein the walls of the die are annular shaped and the die is pillar-shaped. 
     
     
         3 . The method for producing a patterned plate as claimed in  claim 1 , further comprising placing the electromagnetic actuator inside the die before disposing the tubular work piece between the die and the electromagnetic actuator, wherein the walls of the die are annular shaped and the die is tube-shaped. 
     
     
         4 . The method for producing a patterned plate as claimed in  claim 1 , further comprising placing a magnetic concentrator between the tubular work piece and the electromagnetic actuator before supplying the current pulse to the electromagnetic actuator. 
     
     
         5 . The method for producing a patterned plate as claimed in  claim 1 , wherein the electromagnetic actuator is an electromagnetic coil. 
     
     
         6 . The method for producing a patterned plate as claimed in  claim 1 , wherein the tubular work piece is made of a metal or any compound material which has a magnetic conducting property. 
     
     
         7 . The method for producing a patterned plate as claimed in  claim 1 , wherein the material of the tubular work piece is substantially selected from aluminum, copper, ferrum, aurum, silver, titanium or any alloy combination thereof. 
     
     
         8 . The method for producing a patterned plate as claimed in  claim 1 , wherein the die comprises a fracturing part; and wherein the tubular work piece is fractured at a position corresponding to the fracturing part when the walls of the tubular work piece impact the walls of the die. 
     
     
         9 . The method for producing a patterned plate as claimed in  claim 8 , wherein the fracturing part is an indented groove. 
     
     
         10 . The method for producing a patterned plate as claimed in  claim 8 , wherein the fracturing part is a protruding part.