FIELD: mining. SUBSTANCE: hard-alloy insert has working part and tail part for connection with working head of rock-cutting. Working part has flat blunted area which is located square to insert longitudinal axis. Flat fluted area is equal to at least 0.007 and not more than 0.1 area of maximum cross-section of insert working part. EFFECT: improved design. 7 cl, 4 dwg
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|---|---|---|---|
| HARD-ALLOY INSERT FOR ROCK-CUTTING TOOL | 1995 |
|
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|
RU2092694C1 |
