Two-Stage Corrosion Barrier Between Two Work Pieces

A method of preventing corrosion between work pieces, comprising the steps of:

• providing a drive shaft having a first end portion having an inner surface and an outer surface defining a hollow portion therein;
• providing an end piece having a first end portion and a second end portion, wherein said first end portion has a first axially extending yoke arm and a second axially extending yoke arm, wherein said second end portion of said end piece has a neck portion having a first tapered portion and a second tapered portion, wherein said end piece is mad of a different material than said drive shaft;
• inserting at least a portion of said neck portion of said end piece within said hollow portion in said first end portion of said drive shaft;
• magnetic pulse welding said inner surface of said first end portion of said drive shaft to said first tapered portion of said neck portion of said end piece;
• applying a coating material over an interface between an end surface of said first end portion of said drive shaft and said end piece defining a gap;
• applying a sacrificial material over said gap;
• leveling said coating material and said sacrificial material;
• aligning a shrink-wrap material radially outboard from said gap;
• and
• applying heat to said shrink-wrap material sealing said gap.