"V p\u0159\u00EDsp\u011Bvku jsou uvedeny v\u00FDsledky v\u00FDzkumu chov\u00E1n\u00ED jednotliv\u00FDch operac\u00ED technologick\u00E9ho postupu v\u00FDroby \u0161roub\u016F M10. Tyto \u0161rouby jsou vyr\u00E1b\u011Bny tv\u00E1\u0159en\u00EDm za studena bez n\u00E1sledn\u00E9ho tepeln\u00E9ho zpracov\u00E1n\u00ED. K tomuto zp\u016Fsobu v\u00FDroby byla pou\u017Eita nov\u00E1 mikro-legovan\u00E1 ocel 8Mn2Si. Pro \u010Dty\u0159opera\u010Dn\u00ED v\u00FDrobu byl zvolen pr\u016Fm\u011Br 11.68mm v\u00FDchoz\u00EDho polotovaru. Pro zji\u0161t\u011Bn\u00ED k\u0159ivky p\u0159etv\u00E1rn\u00E9ho odporu byly provedeny p\u011Bchovac\u00ED zkou\u0161ky vzork\u016F ze jmenovan\u00E9ho pr\u016Fm\u011Bru. Metoda p\u011Bchov\u00E1n\u00ED byla zvolena z d\u016Fvodu stanoven\u00ED z\u00E1vislosti st\u0159edn\u00ED hodnoty tvrdosti na skute\u010Dn\u00E9 deformaci. Byla provedena m\u011B\u0159en\u00ED tvrdosti a takto z\u00EDskan\u00E1 data byla d\u00E1le statisticky zpracov\u00E1na."@cs . "Slovensk\u00E1 technick\u00E1 univerzita v Bratislave. Strojn\u00EDcka fakulta" . "Maro\u0161, Bohumil" . . . . . "4"^^ . . "Anal\u00FDza tv\u00E1\u0159ec\u00EDch operac\u00ED tepeln\u011B nezpracovan\u00FDch \u0161roub\u016F" . "V, Z(MSM 261100009), Z(MSM 262100003)" . "RIV/00216305:26210/03:PU40871" . "Anal\u00FDza tv\u00E1\u0159ec\u00EDch operac\u00ED tepeln\u011B nezpracovan\u00FDch \u0161roub\u016F"@cs . "2003-09-09+02:00"^^ . "Analysis of Forming Operations of Bolts M10 by Cold Forging"@en . . . . . "RIV/00216305:26210/03:PU40871!RIV11-MSM-26210___" . "3"^^ . "Anal\u00FDza tv\u00E1\u0159ec\u00EDch operac\u00ED tepeln\u011B nezpracovan\u00FDch \u0161roub\u016F"@cs . "[4B826EB1FF7A]" . . . "TECHNOL\u00D3GIA 2003" . . "Bratislava" . "Analysis of Forming Operations of Bolts M10 by Cold Forging"@en . . "Bratislava" . . "80-227-1935-8" . . . "3"^^ . "This paper deals with analysis single manufacturing operations of bolts M10. These bolts are manufactured by cold forming without heat treated. For manufacture was selected as material new-micro-alloyed steel 8Mn2Si. This material will have set point value of strength (8.8-9.8) after cold forming. The choice of this material is important form economical point of view, becouse the manufacture by cold forging is cheaper than hot forging. For 4-operation production of bolts was selected diameter 11.68mm of semiproduct. A ramming is going to choose so that it is going to discover dependence HV10=f(phi). The Vickers hardness was measured on a half of longitudial axis cut. This dependence is important for determination of inhomogenity of deformation in specimens. The measure was evaluate of statistics."@en . "26210" . . "598416" . "Doubravsk\u00FD, Karel" . . "Jan\u00ED\u010Dek, Libor" . "Anal\u00FDza tv\u00E1\u0159ec\u00EDch operac\u00ED tepeln\u011B nezpracovan\u00FDch \u0161roub\u016F" . . "cold forming, Vickers hardness, semiproduct, micro-alloyed steel."@en . . "V p\u0159\u00EDsp\u011Bvku jsou uvedeny v\u00FDsledky v\u00FDzkumu chov\u00E1n\u00ED jednotliv\u00FDch operac\u00ED technologick\u00E9ho postupu v\u00FDroby \u0161roub\u016F M10. Tyto \u0161rouby jsou vyr\u00E1b\u011Bny tv\u00E1\u0159en\u00EDm za studena bez n\u00E1sledn\u00E9ho tepeln\u00E9ho zpracov\u00E1n\u00ED. K tomuto zp\u016Fsobu v\u00FDroby byla pou\u017Eita nov\u00E1 mikro-legovan\u00E1 ocel 8Mn2Si. Pro \u010Dty\u0159opera\u010Dn\u00ED v\u00FDrobu byl zvolen pr\u016Fm\u011Br 11.68mm v\u00FDchoz\u00EDho polotovaru. Pro zji\u0161t\u011Bn\u00ED k\u0159ivky p\u0159etv\u00E1rn\u00E9ho odporu byly provedeny p\u011Bchovac\u00ED zkou\u0161ky vzork\u016F ze jmenovan\u00E9ho pr\u016Fm\u011Bru. Metoda p\u011Bchov\u00E1n\u00ED byla zvolena z d\u016Fvodu stanoven\u00ED z\u00E1vislosti st\u0159edn\u00ED hodnoty tvrdosti na skute\u010Dn\u00E9 deformaci. Byla provedena m\u011B\u0159en\u00ED tvrdosti a takto z\u00EDskan\u00E1 data byla d\u00E1le statisticky zpracov\u00E1na." . .