Tube profile machining process

摘要

In a first embodiment, at a time of magnetic pulse welding, a stepped tube profile machining process axially bores a walled tube from an end inward to a transition depth to form a section with a reduced wall thickness and then axially bores the walled tube from the transition depth to a fall off depth, thereby forming a section with a maximized welding wall section. In a second embodiment, also at a time of magnetic pulse welding, a surface angle tube profile machining process axially bores at a surface angle a walled tube from an end to a bore length to form an angular welding wall thickness inward to a maximized wall section. For both embodiments, the bored surfaces are virgin with no pits, oil, residue, or oxidation thereon, thus making the machined walled tubes available for immediate magnetic pulse welding.

主权项

1. A stepped tube profile machining process, comprising:
axially boring a walled tube inward from an end thereof to a transition depth, wherein the axially boring removes pits, oil, debris, and oxidation from the end of the walled tube to the transition depth, thereby forming a first bored surface within the walled tube having a first reduced welding wall thickness; axially boring the walled tube from the transition depth inward to a fall off depth, wherein the axially boring removes pits, oil, debris, and oxidation from the end of the walled tube to the fall off depth, thereby forming a second bored surface within the walled tube having a second reduced welding wall thickness that is thicker than the first reduced wall thickness; wherein the axially boring steps require no additional processing time of using acid for cleaning the walled tube surfaces of oil, of ridding the acid from the walled tube surfaces, of drying the walled tube surfaces, or further of removing pits, oil, debris, or oxidation from the walled tube, since the axially boring steps occur immediately just before a time of attachment of the walled tube to a workpiece, by magnetic pulse welding the first and second bored surfaces of the walled tube to the workpiece.