Claims
- 1. A method of making a pulley, comprising the steps of:
- forming, from a lightweight non-ferrous metal, a pulley member having an outer annular section and an inner web portion;
- forming a portion of said inner web portion into an axially extending annular portion;
- mounting a ferrous connecting ring having an annular groove in an interior end surface thereof over said axially extending portion, whereby said ferrous connecting ring surrounds said axially extending portion and a free end of said axially extending portion extends adjacent to said annular groove;
- cold-forming said free end, thereby filling said annular groove with material of said free end, and thereby mechanically joining said ferrous connecting ring to said pulley member;
- welding a ferrous hub to an axial end surface of said ferrous connecting ring; and
- machining a central axial bore through said inner web portion, said axially extending portion, and said ferrous hub.
- 2. The method as defined in claim 1, wherein said welding step includes electrically fusing an annular bead formed on an axial end surface of said ferrous hub with said axial end surface of said ferrous connecting ring.
Parent Case Info
This is a division of application Ser. No. 08/523,598, filed Sep. 5, 1995 and now U.S. Pat. No. 5,626,532.
US Referenced Citations (8)
Divisions (1)
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Number |
Date |
Country |
Parent |
523598 |
Sep 1995 |
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