| 摘要 |
PURPOSE:To manufacture a remelted and chilled chamshaft having a hardened surface layer with superior wear resistance formed on the cam sliding surface by remelting and chilling by irradiating high density energy on the cam sliding surface of a camshaft and forcing the camshaft to be cooled. CONSTITUTION:High density energy such as laser beams, TIG arc, plasma arc or electron beams is irradiated on the cam sliding surface of a camshaft and the camshaft is forced to be cooled to form a hardened surface layer on the cam sliding surface of the camshaft by remelting and chilling. |
