FIELD: process engineering.
SUBSTANCE: invention relates to processing crystals, for example, amber, pearls and the like with Mohs hardness lower than 4. Proposed method comprises faceting at abrasive wheel with grain size of 20-40 mcm and finishing at abrasive disk with hardness exceeding that of processed material by fine free abrasive. Note here that facet is set and moved off the disc surface at disc zero rpm to prevent damaging the facet by abrasive particles accumulated in front of facet in rotation. Diamond powder, or aluminium oxide, or cerium oxide, is used as abrasive.
EFFECT: finishing to 11th finish class to GOST 2789-59.
6 cl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
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| METHOD OF MANUFACTURING CUTTING DISK | 1993 |
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|
RU2086394C1 |
| 0 |
|
SU395248A1 |
