Manufacturing technology of Wolter-I type precision core shaft

The invention discloses a manufacturing technology of a Wolter-I type precision core shaft. The technology process comprises the following steps: acquiring an aluminum alloy round bar material blank,performing two-step core shaft blank rough turning, performing measuring, performing chemical plating of an nickel-phosphorus alloy on the surface of a core shaft, performing low-cost precise turningon the core shaft, performing measuring, performing low-cost automatic polishing on the core shaft, performing measuring, performing manually-corrected polishing on the core shaft, performing measuring and finishing the core shaft. According to the manufacturing technology of the Wolter-I type precision core shaft, in the process of manufacturing technology of a Wolter-I type reflector, in order to guarantee the precision of a machining contour, a method that a tool center moves along an equidistant line of a to-be-machined track is adopted in manufacturing of the optical core shaft for copying, the turning and polishing process of the optical core shaft is completed in an X-and-Z two-axis computer numerical control machine tool, thus the shape precision of the surface contour of the coreshaft after turning and polishing is improved, equipment cost and machining cost for turning, grinding and polishing by using a multi-axis computer numerical control machine tool with more than threeaxes are reduced, and therefore, the manufacturing cost of the optical core shaft for copying and the Wolter-I type reflector is reduced.