Forming method using pressing and injection-molding multifunction die, forming apparatus provided with pressing and injection-molding multifunction die , and metal-resin molded product formed by the method or the apparatus

Abstract

A forming method using a pressing and injection-molding multifunction die for forming a metal-resin molded product by integrating metal with resin, includes: forming a resin-molded portion on the metal; and performing, after the resin-molded portion is formed on the metal, at least one of a pressing process and an injection-molding process on the metal in the state in which the metal-resin molded product is supported by only the resin.

1 . A forming apparatus provided with a pressing and injection-molding multifunction die that forms a metal-resin molded product by integrating metal with resin, comprising:
 a first pressing portion that forms a main body portion and a first bridge portion, which connects the main body portion with the metal, in the metal;   a resin-molding portion that is arranged downstream of the first pressing portion in a direction in which the metal is conveyed, that integrates the main body portion with the resin and that forms a second bridge portion that connects the main body portion to the metal; and   a second pressing portion that is arranged downstream of the resin-molding portion in the direction in which the metal is conveyed, and that cuts off the first bridge portion.   
     
     
         2 . The forming apparatus according to  claim 1 , wherein a resin injection hole, through which the resin is injected into a forming die, is formed in a center portion of the forming die, at which the resin-molding portion is arranged. 
     
     
         3 . The forming apparatus according to  claim 1 , further comprising a temperature controller that controls a temperature of an entirety of the forming die that includes the resin-molding portion. 
     
     
         4 . The forming apparatus according to  claim 1 , further comprising a hot runner controller that suppresses occurrence of runner in the resin-molding portion.