Manufacturing method of high-precision mountain toothed rail

The invention belongs to the technical field of mountain toothed rails, and particularly relates to a manufacturing method of a high-precision mountain toothed rail. Comprising the following steps: (1) carrying out hot rolling and straightening on a steel billet to obtain a first blank or a second blank; (2) performing rough machining and tooth form milling on the first blank to obtain a coarse material, or performing tooth form cutting and rough machining on the second blank to obtain a coarse material; (3) carrying out semi-finishing on the coarse material twice to obtain a semi-fine material; and (4) carrying out finish machining on the semi-concentrated material to obtain the toothed rail. The mountain toothed rail machining method solves the problem that mountain toothed rails are difficult to machine, the requirement of the mountain toothed rails for machining precision is met, and batch production of the mountain toothed rails is achieved. 本发明属于山地齿轨技术领域，尤其涉及一种高精度山地齿轨的制作方法。包括以下步骤：（1）钢坯经过热轧、矫直后得到第一毛坯或第二毛