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Integralni sistem za kontinuirano spremljanje procesa razžagovanja : diplomsko delo (višješolski študij) = Integral system for controling the process of sawing : graduation thesis (higher professional studies)Hauser, MitjaTežave, s katerimi se na žagarskih obratih najpogosteje srečujemo, so nizka učinkovitost, slaba kakovost žaganig površin ter dimenzijsko odstopanje obdelovancev. Navedene težave so zelo pogosto ... posledica neprimernega napetostnega stanja v tračnem žagnem listu, kar je tudi glavni razlog za pojavrazpok v pazdušnem delu ozobljenega dela orodja. Napetostno stanje v gibajočem se tračnem žagnem listu je odvisno od karakterističnega preseka orodja, napenjalne sile, kinematičnih pogojev obratovanja ter vnešenih napetosti, ki so posledica pasovnih plastičnih deformacij. Kljub temu, da z vnosom napetosti v tračni žagni list zvišujemo najnižje lastne frekvence in izboljšujemo žagalno točnost, je osnovni razlog tega početja še vedno temperaturni gradient oziroma posledice, ki jih le-ta v materialu orodja lahkopovzroči. Med vnašanjem napetosti v tračne žagne liste - najpogostejši način vnašanja napetosti je vzdolžno pasno valjanje lista - se le ti prečno ukrivijo, ukrivljenost pa kontroliramo z merjenjem prečnega profila svetlobne reže. V splošnem velja, da se s povečevanjem dinamične togosti povečajo žagalne sposobnosti in kakovost na novo nastalih površin. Lastne frekvence tračnega žagnega lista so odvisne od napetosti, njegove upogibne togosti in radialne hitrosti. Z naraščanjem debeline, širine lista tračne žage in povečevanjem razdalje med drsnima vodiloma se lastne frekvence zmanjšujejo. Predstavljene analize nam dopuščajo fizikalni vpogled v nihajne načine tračnega žagnega lista, hkrati pa omogočajo verodostojno vrednotenje kontinuirano merjenih prečnih pomikov orodja, kar je bistvenega pomena tako za storilnost, kakor tudi kakovost novo nastalih površin.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Hauser], 2002Language - slovenianCOBISS.SI-ID - 912521
Author
Hauser, Mitja
Other authors
Bučar, Bojan, 1961-2012 |
Medič, Marijan
Topics
tračni žagni listi |
tračne žage |
napetosti |
valjanje |
vibracije |
natančnost žaganja |
band saw blades |
band saws |
stresses |
rolling |
vibrations |
cutting accuracy
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Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Bučar, Bojan, 1961-2012 | 01392 |
Medič, Marijan | 11925 |
Source: Personal bibliographies
and: SICRIS
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