FIELD: process engineering.
SUBSTANCE: invention relates to machine building and may be used for making high-loaded helical springs subjected to both axial and radial forces. Proposed method comprises spring coiling, thermal treatment, preparing thrust coils, cold upsetting, and shot-blast cold-hardening of spring outer surface section. Length of said section makes one fourth of spring turn circumference to half the circumference. Preset spring outer surface section is subjected to ordered shot-blast cold-hardening.
EFFECT: higher fatigue resistance, quality and strength.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO STRENGTHEN CYLINDRICAL HELICAL SPRINGS | 2011 |
|
RU2462519C1 |
| METHOD TO STRENGTHEN CYLINDRICAL HELICAL COMPRESSION SPRINGS | 2014 |
|
RU2595175C2 |
| MANUFACTURING METHOD OF LARGE-SIZE SPRINGS FROM STEEL | 2006 |
|
RU2377091C2 |
| METHOD OF LARGE-SIZE SPRINGS MAKING FROM STEEL | 2006 |
|
RU2336139C2 |
| HARDENING OF HELICAL COIL SPRINGS | 2013 |
|
RU2556258C2 |
| METHOD OF MANUFACTURING HELICAL CYLINDRICAL SPRINGS | 2018 |
|
RU2688028C1 |
| METHOD OF PRODUCING SPRING AND PRODUCTION LINE TO THIS END | 2011 |
|
RU2478015C1 |
| METHOD OF MAKING SPRINGS WITH HIGH STRENGTH | 2019 |
|
RU2705192C1 |
| HARDENING OF HELICAL COIL SPRINGS | 2013 |
|
RU2548876C1 |
| METHOD OF FABRICATING STEEL SPRINGS (VERSIONS) | 2009 |
|
RU2411101C2 |
