Apparatus for shaping ingots into right circular cylindrical form.

摘要

An apparatus for shaping a monocrystal ingot of roughly circular cylindrical form into exact right circular cylindrical form, comprising an automatic center axis determining unit (1) for determining an optimum center axis of the monocrystal ingot; an automatic external cylindrical grinding unit (60) for controllably grinding the periphery of the ingot; an ingot setting unit (50) for controllably setting the ingot in the external cylindrical grinding unit in such a manner that the optimum center axis of the ingot determined by the center axis determining unit coincides with the spin axis of the external cylindrical grinding unit; and an automatic diameter control unit for measuring a local diameter of the ingot being ground by the external cylindrical grinding unit to determine the depth by which the ingot is to be locally ground from the surface based on the result of the measurement of the local diameter of the ingot.