Patent ID: 6779709
Filing Date: 2004-08-24
Classification: B23K

Abstract:
An inertia welder comprising:1) a housing; 2) a drive shaft with a longitudinal axis rotationally mounted to said housing and moveable in a direction along said longitudinal axis; 3) a motor rotatably driving said drive shaft; 4) flywheel mounted on and rotating with said drive shaft; 5) hydraulic housing mounted to said housing and containing a moveable piston; 6) said piston having a first end and a second opposite end; 7) said first end of said piston and a first portion of said hydraulic housing forming a first chamber and said opposite end of said piston and a second portion of said hydraulic housing forming a second chamber; 8) said first portion of said hydraulic housing having a first line opening formed therein and said second portion of said hydraulic housing having a second line opening formed therein; 9) said drive shaft rotatably passing through said hydraulic housing in a longitudinal direction and attached to said piston so as to be longitudinally immoveable with respect to said piston; and 10) a chuck mounted on said drive shaft for securing and delivering rotational and longitudinal forces from said drive shaft to a first workpiece sufficient to weld said first workpiece to a second workpiece.