Method and apparatus for forging sprocket segments

Details Method and apparatus for forging sprocket segments Method and apparatus for forging sprocket segments

B - Operations, Transporting

21

J

78/2

B21J 5/12 (2006.01)

Patent

CA 1189360

Method and Apparatus for Forging Sprocket Segments Abstract The invention discloses a process of forging a sprocket segment for a track-type vehicle under- carriage. The forging process produces sprocket segments that conform to very restrictive tolerances without the necessity of additional machining or finishing. The process includes heating a metal billet in an electric furnace, rough-shaping the billet, then forging the billet in a die to form a sprocket segment having a size and shape substantially equal to the desired finished shape of the segment. The forged sprocket segment is trimmed and then placed in a coining die wherein at least two nonparallel surfaces are formed to a desired finished dimension. The invention also includes an apparatus for forging a sprocket segment to a desired finished dimension. The apparatus includes an upper die member, a lower die member, and a transversely-moveable die member.

414968

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