FIELD: metallurgy.
SUBSTANCE: invention relates to pressurised metal treatment, and particularly, to thread cutting tooling. The tool includes movable and fixed dies, each having intake, calibrating and derailing sections. No more than 0.3 mm deep dimples are made on the top and side surfaces of the upper thread profile on the half of intake section from dies ends. The dimples are made by spark erosion fabrication method.
EFFECT: increase stability of tool.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| THREAD ROLLING-ON TOOL | 0 |
|
SU919796A1 |
| METHOD AND TOOL FOR KNURLING THREAD ON ROD ARTICLES | 1996 |
|
RU2098240C1 |
| METHOD FOR KNURLING THREAD ON ROD PRODUCTS AND TOOL FOR PERFORMING THE SAME | 2000 |
|
RU2179490C2 |
| THREAD-ROLLING TOOL | 0 |
|
SU1186339A2 |
| TOOL FOR ROLLING-ON THREAD | 0 |
|
SU1759511A1 |
| THREAD KNURLING TOOL | 1996 |
|
RU2096121C1 |
| GEAR FOR REPEAT THREAD ROLLING | 1994 |
|
RU2063290C1 |
| TOOL FOR COARSE THREAD ROLLING IN BOLTS | 2007 |
|
RU2336140C1 |
| TOOL FOR THREAD ROLLING | 0 |
|
SU1704894A1 |
| METHOD OF MAKING THREADS | 0 |
|
SU1572733A1 |
