发明名称 |
HARDENING OF HELICAL COIL SPRINGS |
摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to machine building and can be used in production of helical coil compression springs of steel. Proposed process comprises hardening of spring turn inner surface by surface cold-hardening. Along with the latter, crosswise flexure of spring turn is made in the pane perpendicular to spring axis. Surface cold-hardening is executed by hardening rolling by shaped rollers with working surface profiles made to allow the spring solid surface.EFFECT: higher fatigue strength, longer life, lower noise, vibration and drawing force.3 dwg |
申请公布号 |
RU2556258(C2) |
申请公布日期 |
2015.07.10 |
申请号 |
RU20130130560 |
申请日期 |
2013.07.02 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE BJUDZHETNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "IZHEVSKIJ GOSUDARSTVENNYJ TEKHNICHESKIJUNIVERSITET IMENI M.T. KALASHNIKOVA" |
发明人 |
SHAVRIN OLEG IVANOVICH;GAJFUTDINOV MARAT KAMILOVICH;DOMNIN ALEKSEJ KONSTANTINOVICH |
分类号 |
B21F35/00 |
主分类号 |
B21F35/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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