FIELD: process engineering.
SUBSTANCE: invention relates to production of small cutting tools sized to 6 mm from speed steel and can be used for production of cutters at low margin of safety approximating to 1. Billet is heat treated to hardness 53-57 HRCe. Then, tool profile is shaped while tool surface ply is subjected to fluid carbonitriding in the medium of potassium cyanate and potash at 560°C to tool hardness 70-74 HRCe.
EFFECT: higher hardness and reliability of tools, reliable production.
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS FOR CARBONITRIDING STEEL PRODUCTS | 0 |
|
SU899711A1 |
| METHOD OF TOOL THERMAL TREATMENT | 0 |
|
SU711130A1 |
| METHOD OF CHEMICAL-HEAT TREATMENT OF TOOLS | 0 |
|
SU576350A1 |
| METHOD FOR MAKING SMALL-SIZE CUTTING TOOL OF HIGH-SPEED STEEL | 2006 |
|
RU2315675C1 |
| METHOD OF MAKING SMALL-SIZE CUTTING TOOL OF HIGH-SPEED STEEL | 1994 |
|
RU2100455C1 |
| METHOD OF THERMOMECHANICAL TREATMENT OF HIGH-SPEED STEELS | 0 |
|
SU827566A1 |
| METHOD OF THERMAL TREATMENT OF HIGH-SPEED STEEL TOOLS | 0 |
|
SU1797626A3 |
| METHOD ESTABLISHING HEAT STABILITY OF STEEL | 1999 |
|
RU2164348C2 |
| METHOD FOR HEAT TREATING HIGH-SPEED STEEL TOOLS | 0 |
|
SU1121304A1 |
| METHOD OF MANUFACTURING CUTTING TOOLS | 0 |
|
SU1715497A1 |
