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Injection core assembly for injection molding machine tooling

  • US 20070154589A1
  • Filed: 01/03/2006
  • Published: 07/05/2007
  • Est. Priority Date: 01/03/2006
  • Status: Abandoned Application
First Claim
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1. An injection core assembly for use in an injection molding machine, said core assembly comprising:

  • an elongated core body having a socket at one end provided with an axially extending recess; and

    an elongated core tip having exterior molding surfaces thereon and projecting axially from said socket, said tip having a base fixedly secured within said recess by shrink fit relationship with the socket, wherein said socket has been induction heated to expand the recess sufficiently to receive the base of the tip and then cooled to room temperature to grip the tip against dislodgement.

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