"0"^^ . . "GA101/99/0118" . . "1"^^ . . "Forged and pressed parts are used for highly stressed components. Homogeneity of mechanical properties in volume of the formed product thus belongs to the basic requirements from the viewpoint of sizing of parts and components. From technological viewpoint non-homogeneity of mechanical properties in volume of the formed body is generally consequence of uneven development of microstructure and instability of plastic flow of material under given forming conditions. Considering knowledge of laws andmechanisms that control these processes it is required to carry out technological process of forming (by suitable selection of its parameters) in such a way, that these processes occur in a minimum possible extent. While in currently resolved tasks finalstate of the products is predicted on the basis of initial state of material and given conditions of forming, the task described above is inverted. It means it is necessary to find and to define suitable initial state and conditions of processing that wo"@en . "1"^^ . "http://www.isvav.cz/projectDetail.do?rowId=GA101/99/0118"^^ . "2003-04-01+02:00"^^ . "V\u00FDkovky a v\u00FDlisky jsou z\u00E1kladem pro v\u00FDrobu vysoce nam\u00E1han\u00FDch d\u00EDl\u016F na jejich\u017E pevnostn\u00EDch a \u00FAnavov\u00FDch charakteristik\u00E1ch podstatnou m\u011Brou z\u00E1vis\u00ED \u017Eivotnost a spolehlivost cel\u00E9 konstrukce. Homogenita mechanick\u00FDch vlastnost\u00ED v objemu tv\u00E1\u0159en\u00E9ho v\u00FDrobku tak pat\u0159\u00ED k z\u00E1kladn\u00EDm po\u017Eadavk\u016Fm z hlediska dimenzov\u00E1n\u00ED d\u00EDl\u016F a sou\u010D\u00E1st\u00ED. Z technologick\u00E9ho hlediska je nehomogenita mechanick\u00FDch vlastnost\u00ED v objemu tv\u00E1\u0159en\u00E9ho t\u011Blesa obecn\u011B d\u016Fsledkem nerovnom\u011Brn\u00E9ho v\u00FDvoje mikrostruktury a nestability plastick\u00E9ho toku materi\u00E1lu za dan\u00FDch podm\u00EDnek tv\u00E1\u0159en\u00ED. P\u0159i znalosti z\u00E1konitost\u00ED a mechanism\u016F jimi\u017E se tyto d\u011Bje \u0159\u00EDd\u00ED je po\u017Eadavkem v\u00E9st technologick\u00FD proces tv\u00E1\u0159en\u00ED (vhodnou volbou jeho parametr\u016F) tak, aby k t\u011Bmto jev\u016Fm doch\u00E1zelo v minim\u00E1ln\u00ED mo\u017En\u00E9 m\u00ED\u0159e. Zat\u00EDmco v b\u011B\u017En\u011B \u0159e\u0161en\u00FDch \u00FAloh\u00E1ch se k v\u00FDchoz\u00EDmu stavu materi\u00E1lu a k dan\u00FDm podm\u00EDnk\u00E1m tv\u00E1\u0159en\u00ED predikuje kone\u010Dn\u00FD stav, v\u00FD\u0161e nastolen\u00E1 \u00FAloha je k t\u011Bmto inverzn\u00ED. Toti\u017E k po\u017Eadovan\u00E9mu c\u00EDlov\u00E9mu stavu se systematicky hledaj\u00ED vhodn\u00FD v\u00FDchoz\u00ED stav a podm\u00EDnky procesu je\u017E k c\u00EDli ve" . "Anal\u00FDza proces\u016F objemov\u00E9ho tv\u00E1\u0159en\u00ED z hlediska jejich stability, reprodukovatelnosti a homogenity vlastnost\u00ED v\u00FDrobk\u016F" . . . . . . . "P\u0159\u00EDnos \u0159e\u0161en\u00ED projektu je v tom, \u017Ee hodnot\u00ED nehomogenitu tv\u00E1\u0159en\u00FDch materi\u00E1l\u016F jak z hlediska po\u017Eadavk\u016F konstrukce, tak i z hlediska technologie a mechaniky tuh\u00FDch t\u011Bles. Za podstatn\u00E9 je mo\u017En\u00E9 pokl\u00E1dat hodnocen\u00ED nestability plastick\u00E9ho toku a jeho matemati"@cs . . . "13"^^ . . . . . "13"^^ . . "Analysis of processes of bulk forming from the viewpoint of their stability, reproducibility and homogeneity of products properties"@en . . "Neuvedeno."@en .