| 摘要 |
Method of constructing a crankshaft incorporating a timing driving wheel includes forming a crankshaft having a crank disposed on opposite sides of a main bearing region, machining and treating the bearing surfaces of the crankshaft, preparing a machined cylindrical datum area on the surface of said main bearing region, cutting through said datum area to separate the crankshaft into two portions, locating a machined and treated timing wheel between the severed ends of said portions, accurately aligning the driving wheel in co-axial relationship with the parts of said datum area on each of said portions, and welding the resulting assembly together by a local welding method. |
