FIELD: machining of diamonds. SUBSTANCE: method involves grinding a flat, then its parallel facet at a distance not under 0.4 mm, making bottom facets at an angle of 20-50 deg with the flat size equal to 40-85% of the corresponding tip size. EFFECT: higher efficiency. 5 cl, 5 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD OF MAKING DIAMOND INSERTIONS | 1989 |
|
SU1617809A1 |
METHOD OF MANUFACTURING ROUND-SHAPED BRILLIANTS FROM DIAMONDS IN SHELL | 1996 |
|
RU2097170C1 |
METHOD OF MANUFACTURING CUTTING DISK | 1993 |
|
RU2094217C1 |
METHOD FOR MANUFACTURE OF JEWELRY | 0 |
|
SU1771668A1 |
PRECIOUS STONE | 0 |
|
SU1743563A1 |
METHOD FOR PRODUCTION OF DIAMOND INSERTS | 0 |
|
SU1637753A1 |
METHOD OF MAKING GEMS OF ARBITRARY SHAPE | 0 |
|
SU1699782A1 |
METHOD OF FACETING JEWEL STONES WITH RANDOM SHAPE | 0 |
|
SU1759644A1 |
JEWELRY INSERT | 2001 |
|
RU2190945C1 |
JEWELRY GEM | 0 |
|
SU1618378A1 |
Authors
Dates
1994-12-15—Published
1992-03-27—Filed