FIELD: technological processes.
SUBSTANCE: preliminary moulding of part is carried out, and further moulding operations are performed. The latter include polishing of spherical surface by tool with fixed abrasive and its processing with the help of metal tool with concave or convex working surface and loose abrasive with descending grain size in the presence of moistening liquid. Processing with loose abrasive is done by tool from hard material with high plasticity. Working surface of tool is formed by sharp external edges of annular grooves, which are installed along sphere, radius of which is equal to radius of processed part. Loose abrasive used is diamond flour grains, and moistening liquid applied is glycerin. Abrasive concentration in moistening liquid makes 30-40%.
EFFECT: time for processing of parts from optical sapphire is reduced, while quality and accuracy of processed surfaces is increased.
3 cl, 3 dwg
| Title | Year | Author | Number |
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