Patent ID: 6389697
Filing Date: 2002-05-21
Classification: B21D,B23K,B62D,Y10T

Abstract:
A method of manufacturing an automotive inner-skeletal structure or â€œSpaceframeâ€  having closed members and nodes defining joints of said spaceframe, said method of manufacturing using Electromagnetic Pulse Forming (EMF) or Magnetic Pulse Welding (MPW), and comprising the steps of:a) abutting a closed member against a stop of a node member of at least one joint, said node member having at least one raised land, and at least one undercut portion defining at least one gap between said closed member and said node prior to forming said closed member about said node; and b) placing at least one split inductor, or split coil adjacent said at least one joint; and c) forming said closed member about said node in order to close said at least one gap, using EMF or MPW via said split inductor or split coil, whereby at least one formed joint of said spaceframe is manufactured.