Patent Number: 6,169,268

Title: Method and apparatus for forming the ends of metallic tubes

Abstract: A method and apparatus for forming constricted ends on tube products on an automatic continuous basis. The apparatus includes a feeding station including a spindle for supporting a metallic tube. A forming station is positioned downstream from the feeding station and includes a carriage supported for movement on a frame. A forming tool and a cutting tool are supported in spaced relation on the carriage. A welding unit, preferably a tungsten inert gas welder, is provided including a tip supported for movement with the carriage. The carriage is operably connected to a drive mechanism for driving the carriage in movement relative to the spindle. A controller is in communication with the drive mechanism for controlling movement of the carriage and is in further communication with the heat source for controlling activation thereof. A discharge conduit is supported on the carriage for discharging a plurality of successive formed tubes into a receiving bin.

Inventors: Esterline; Dale F. (Springfield, OH), Donovan; Michael J. (Springfield, OH)

Assignee: Esterline & Sons, Inc.

International Classification: B21D 41/00 (20060101); B21D 41/04 (20060101); B21D 51/24 (20060101); B21D 51/16 (20060101); B23K 9/028 (20060101); B23K 009/12 (); B21D 005/00 (); B21D 039/04 ()

Expiration Date: 01/02/2018