{"id":8131,"date":"2023-06-14T01:47:55","date_gmt":"2023-06-14T01:47:55","guid":{"rendered":"https:\/\/china-maching.com\/?p=8131"},"modified":"2023-10-25T14:17:48","modified_gmt":"2023-10-25T14:17:48","slug":"milling-cutters-everything-you-need-to-know","status":"publish","type":"post","link":"https:\/\/china-maching.com\/cs\/frezy-vse-co-potrebujete-vedet\/","title":{"rendered":"Fr\u00e9zy: V\u0161e, co pot\u0159ebujete v\u011bd\u011bt"},"content":{"rendered":"

Co je to fr\u00e9za a jak funguje?<\/h2>\n

\"Co<\/p>\n

Fr\u00e9zy jsou rota\u010dn\u00ed \u0159ezn\u00e9 n\u00e1stroje, kter\u00e9 se pou\u017e\u00edvaj\u00ed p\u0159i r\u016fzn\u00fdch obr\u00e1b\u011bc\u00edch operac\u00edch. Jsou ur\u010deny k odstran\u011bn\u00ed materi\u00e1lu z obrobku a vytvo\u0159en\u00ed po\u017eadovan\u00e9ho tvaru nebo profilu. Fr\u00e9zy se ot\u00e1\u010dej\u00ed kolem osy a odeb\u00edraj\u00ed materi\u00e1l \u0159ezn\u00fdmi hranami a zuby. B\u011b\u017en\u011b se pou\u017e\u00edvaj\u00ed ve v\u00fdrob\u011b a kovoobr\u00e1b\u011bc\u00edch aplikac\u00edch a jsou dostupn\u00e9 v r\u016fzn\u00fdch velikostech, tvarech a stylech.<\/p>\n

Pochopen\u00ed z\u00e1klad\u016f fr\u00e9z<\/h3>\n

K dispozici je n\u011bkolik fr\u00e9z, ka\u017ed\u00e1 s jedine\u010dn\u00fdmi vlastnostmi a v\u00fdhodami. N\u011bkter\u00e9 z nejb\u011b\u017en\u011bj\u0161\u00edch fr\u00e9z zahrnuj\u00ed stopkov\u00e9 fr\u00e9zy, kulov\u00e9 stopkov\u00e9 fr\u00e9zy, \u010deln\u00ed fr\u00e9zy a dr\u00e1\u017ekov\u00e9 vrt\u00e1ky. Stopkov\u00e9 fr\u00e9zy se pou\u017e\u00edvaj\u00ed k vytv\u00e1\u0159en\u00ed rovn\u00fdch povrch\u016f nebo obrys\u016f na obrobku, zat\u00edmco kulov\u00e9 stopkov\u00e9 fr\u00e9zy se pou\u017e\u00edvaj\u00ed k vytv\u00e1\u0159en\u00ed zaoblen\u00fdch tvar\u016f nebo profil\u016f. \u010celn\u00ed fr\u00e9zy se pou\u017e\u00edvaj\u00ed k vytv\u00e1\u0159en\u00ed ploch\u00fdch povrch\u016f nebo odstra\u0148ov\u00e1n\u00ed materi\u00e1lu z velk\u00fdch ploch a dr\u00e1\u017ekov\u00e9 vrt\u00e1ky se pou\u017e\u00edvaj\u00ed k vytv\u00e1\u0159en\u00ed dr\u00e1\u017eek nebo kan\u00e1l\u016f v obrobku.<\/p>\n

Jak\u00e9 jsou dostupn\u00e9 r\u016fzn\u00e9 typy fr\u00e9z?<\/h3>\n

Ka\u017ed\u00fd typ fr\u00e9zy m\u00e1 svou vlastn\u00ed sadu aplikac\u00ed a v\u00fdhod. Nap\u0159\u00edklad kulov\u00e9 stopkov\u00e9 fr\u00e9zy jsou skv\u011bl\u00e9 pro vytv\u00e1\u0159en\u00ed zaoblen\u00fdch hran nebo tvar\u016f, zat\u00edmco stopkov\u00e9 fr\u00e9zy jsou vhodn\u011bj\u0161\u00ed pro v\u00fdrobu rovn\u00fdch povrch\u016f nebo obrys\u016f. \u010celn\u00ed fr\u00e9zy jsou ide\u00e1ln\u00ed pro odstra\u0148ov\u00e1n\u00ed velk\u00e9ho mno\u017estv\u00ed materi\u00e1lu z obrobku a dr\u00e1\u017ekov\u00e9 vrt\u00e1ky jsou skv\u011bl\u00e9 pro vytv\u00e1\u0159en\u00ed p\u0159esn\u00fdch dr\u00e1\u017eek nebo kan\u00e1l\u016f. Je nezbytn\u00e9 zvolit spr\u00e1vn\u00fd typ fr\u00e9zy na z\u00e1klad\u011b specifick\u00fdch po\u017eadavk\u016f dan\u00e9 pr\u00e1ce.<\/p>\n

Jak vybrat spr\u00e1vnou fr\u00e9zu pro va\u0161i aplikaci?<\/h3>\n

V\u00fdb\u011br vhodn\u00e9 fr\u00e9zy vy\u017eaduje hlubok\u00e9 porozum\u011bn\u00ed obr\u00e1b\u011bn\u00e9mu materi\u00e1lu, po\u017eadovan\u00e9 povrchov\u00e9 \u00faprav\u011b a \u0159ezn\u00e9 rychlosti. R\u016fzn\u00e9 materi\u00e1ly vy\u017eaduj\u00ed r\u016fzn\u00e9 typy fr\u00e9z a \u0159ezn\u00e9 rychlosti, tak\u017ee v\u00fdb\u011br spr\u00e1vn\u00e9ho n\u00e1stroje pro danou pr\u00e1ci je z\u00e1sadn\u00ed. Krom\u011b toho budou po\u017eadavky na povrchovou \u00fapravu ur\u010dovat po\u010det \u0159ezn\u00fdch hran nebo zub\u016f po\u017eadovan\u00fdch na za\u0159\u00edzen\u00ed a celkovou geometrii za\u0159\u00edzen\u00ed. A kone\u010dn\u011b, \u0159ezn\u00e1 rychlost bude diktov\u00e1na obr\u00e1b\u011bn\u00fdm materi\u00e1lem, p\u0159i\u010dem\u017e tu\u017e\u0161\u00ed materi\u00e1ly vy\u017eaduj\u00ed ni\u017e\u0161\u00ed \u0159ezn\u00e9 rychlosti.<\/p>\n

Jak\u00e9 materi\u00e1ly se pou\u017e\u00edvaj\u00ed k v\u00fdrob\u011b fr\u00e9z?<\/h3>\n

Fr\u00e9zy jsou vyrobeny z r\u016fzn\u00fdch materi\u00e1l\u016f, v\u010detn\u011b rychlo\u0159ezn\u00e9 oceli, tvrdokovu a diamantu. Rychlo\u0159ezn\u00e1 ocel je typick\u00e1 pro men\u0161\u00ed fr\u00e9zy, zat\u00edmco tvrdokov je preferov\u00e1n pro rozs\u00e1hlej\u0161\u00ed, vysoce v\u00fdkonn\u00e9 fr\u00e9zy. Diamant se pou\u017e\u00edv\u00e1 pro velmi p\u0159esn\u00e9 \u0159ezn\u00e9 aplikace, kde je rozhoduj\u00edc\u00ed povrchov\u00e1 \u00faprava. V\u00fdb\u011br materi\u00e1lu bude z\u00e1viset na konkr\u00e9tn\u00edch po\u017eadavc\u00edch dan\u00e9 zak\u00e1zky, stejn\u011b jako na rozpo\u010dtu a preferenc\u00edch strojn\u00edka.<\/p>\n

Jak\u00e9 jsou vysoce kvalitn\u00ed \u0159ezn\u00e9 n\u00e1stroje pro fr\u00e9zov\u00e1n\u00ed?<\/h3>\n

Vysoce kvalitn\u00ed \u0159ezn\u00e9 n\u00e1stroje pro fr\u00e9zov\u00e1n\u00ed jsou navr\u017eeny tak, aby nab\u00edzely vynikaj\u00edc\u00ed v\u00fdkon, odolnost a p\u0159esnost. Obvykle jsou vyrobeny z nejkvalitn\u011bj\u0161\u00edch materi\u00e1l\u016f a jsou navr\u017eeny tak, aby pracovaly p\u0159i vy\u0161\u0161\u00edch \u0159ezn\u00fdch rychlostech s minim\u00e1ln\u00edmi vibracemi. N\u011bkter\u00e9 z nejkvalitn\u011bj\u0161\u00edch dostupn\u00fdch \u0159ezn\u00fdch n\u00e1stroj\u016f zahrnuj\u00ed monolitn\u00ed karbidov\u00e9 stopkov\u00e9 fr\u00e9zy, diamantov\u011b pota\u017een\u00e9 stopkov\u00e9 fr\u00e9zy a ultra p\u0159esn\u00e9 fr\u00e9zy. Tyto n\u00e1stroje jsou ide\u00e1ln\u00ed pro velkoobjemovou v\u00fdrobu a aplikace p\u0159esn\u00e9ho obr\u00e1b\u011bn\u00ed a jsou dostupn\u00e9 v r\u016fzn\u00fdch velikostech a stylech.<\/p>\n

Jak\u00e9 jsou r\u016fzn\u00e9 typy fr\u00e9zovac\u00edch operac\u00ed?<\/h2>\n

\"Jak\u00e9<\/p>\n

Fr\u00e9zovac\u00ed operace se t\u00fdkaj\u00ed \u0159ezn\u00fdch proces\u016f, p\u0159i kter\u00fdch fr\u00e9za odstra\u0148uje p\u0159ebyte\u010dn\u00fd materi\u00e1l z obrobku. Fr\u00e9zov\u00e1n\u00ed m\u00e1 za c\u00edl vyr\u00e1b\u011bt slo\u017eit\u00e9 tvary, dr\u00e1\u017eky a otvory s vysokou p\u0159esnost\u00ed a preciznost\u00ed. Existuje n\u011bkolik typ\u016f fr\u00e9zovac\u00edch operac\u00ed podle typu pou\u017eit\u00e9 fr\u00e9zy, sm\u011bru ot\u00e1\u010den\u00ed, hloubky \u0159ezu a rychlost posuvu<\/a>. Tento \u010dl\u00e1nek pojedn\u00e1v\u00e1 o n\u011bkter\u00fdch b\u011b\u017en\u011b pou\u017e\u00edvan\u00fdch fr\u00e9zovac\u00edch operac\u00edch v procesech p\u0159esn\u00e9ho obr\u00e1b\u011bn\u00ed.<\/p>\n

Co je \u010deln\u00ed fr\u00e9zov\u00e1n\u00ed a kdy se pou\u017e\u00edv\u00e1?<\/h3>\n

\u010celn\u00ed fr\u00e9zov\u00e1n\u00ed je operace fr\u00e9zov\u00e1n\u00ed, p\u0159i kter\u00e9 fr\u00e9za vytv\u00e1\u0159\u00ed rovn\u00fd povrch na horn\u00ed \u010d\u00e1sti obrobku. Fr\u00e9za se ot\u00e1\u010d\u00ed na ose kolm\u00e9 k obrobku a odeb\u00edr\u00e1 materi\u00e1l sm\u011brem dol\u016f. \u010celn\u00ed fr\u00e9zov\u00e1n\u00ed se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 pro vytvo\u0159en\u00ed hladk\u00e9 povrchov\u00e9 \u00fapravy na velk\u00fdch ploch\u00fdch ploch\u00e1ch, jako jsou bloky motor\u016f, ocelov\u00e9 plechy nebo odlitky. Tato operace se \u010dasto prov\u00e1d\u00ed na fr\u00e9zky<\/a> vybaven\u00e9 v\u00edcezub\u00fdmi \u0159ezn\u00fdmi n\u00e1stroji zn\u00e1m\u00fdmi jako \u010deln\u00ed fr\u00e9zy.<\/p>\n

Jak\u00e9 jsou r\u016fzn\u00e9 typy \u010deln\u00edch fr\u00e9z a jak se pou\u017e\u00edvaj\u00ed?<\/h3>\n

Stopkov\u00e9 fr\u00e9zy jsou fr\u00e9zy, kter\u00e9 \u0159e\u017eou \u0161irokou \u0161k\u00e1lu materi\u00e1l\u016f, v\u010detn\u011b oceli, hlin\u00edku, m\u011bdi a plast\u016f. Stopkov\u00e9 fr\u00e9zy se dod\u00e1vaj\u00ed v r\u016fzn\u00fdch velikostech, tvarech a proveden\u00edch, z nich\u017e ka\u017ed\u00e1 m\u00e1 svou \u0159eznou geometrii. B\u011b\u017en\u00e9 typy stopkov\u00fdch fr\u00e9z pou\u017e\u00edvan\u00fdch p\u0159i fr\u00e9zovac\u00edch operac\u00edch zahrnuj\u00ed kulov\u00e9 stopkov\u00e9 fr\u00e9zy, \u010dty\u0159hrann\u00e9 stopkov\u00e9 fr\u00e9zy a rohov\u00e9 stopkov\u00e9 fr\u00e9zy. Kuli\u010dkov\u00e9 fr\u00e9zy se pou\u017e\u00edvaj\u00ed pro vytv\u00e1\u0159en\u00ed zaoblen\u00fdch tvar\u016f nebo obrys\u016f. \u010ctvercov\u00e9 stopkov\u00e9 fr\u00e9zy se pou\u017e\u00edvaj\u00ed pro \u0159ez\u00e1n\u00ed rovn\u00fdch ploch a vytv\u00e1\u0159en\u00ed ostr\u00fdch hran. Rohov\u00e9 r\u00e1diusov\u00e9 stopkov\u00e9 fr\u00e9zy se pou\u017e\u00edvaj\u00ed pro fr\u00e9zov\u00e1n\u00ed zaoblen\u00fdch roh\u016f.<\/p>\n

Co je fr\u00e9zov\u00e1n\u00ed dr\u00e1\u017eek a kdy se pou\u017e\u00edv\u00e1?<\/h3>\n

Fr\u00e9zov\u00e1n\u00ed dr\u00e1\u017eek je operace, p\u0159i kter\u00e9 fr\u00e9za vytv\u00e1\u0159\u00ed dr\u00e1\u017eky nebo kan\u00e1ly v obrobku. Tato operace se \u010dasto prov\u00e1d\u00ed na fr\u00e9zk\u00e1ch vybaven\u00fdch dr\u00e1\u017ekovac\u00edm kotou\u010dem. Fr\u00e9zov\u00e1n\u00ed dr\u00e1\u017eek lze prov\u00e1d\u011bt r\u016fzn\u00fdmi zp\u016fsoby, v\u010detn\u011b kruhov\u00e9ho, spir\u00e1lov\u00e9ho a ponorn\u00e9ho. Tato operace se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 pro vytv\u00e1\u0159en\u00ed dr\u00e1\u017eek, dr\u00e1\u017eek a T-dr\u00e1\u017eek.<\/p>\n

Co je profilov\u00e9 fr\u00e9zov\u00e1n\u00ed a jak se prov\u00e1d\u00ed?<\/h3>\n
\"Komplexn\u00ed
Pokra\u010dovat ve \u010dten\u00ed<\/strong>Komplexn\u00ed pr\u016fvodce CAD v\u00fdkresem pro CNC stroj<\/span><\/div><\/a><\/div>

Fr\u00e9zov\u00e1n\u00ed profilu je operace fr\u00e9zov\u00e1n\u00ed, p\u0159i kter\u00e9 se fr\u00e9za pou\u017e\u00edv\u00e1 k fr\u00e9zov\u00e1n\u00ed obrysu obrobku. Fr\u00e9za sleduje dr\u00e1hu ur\u010denou po\u010d\u00edta\u010dov\u00fdm CAD modelem a vytv\u00e1\u0159\u00ed slo\u017eit\u00fd tvar, kter\u00fd by bylo obt\u00ed\u017en\u00e9 vyrobit jak\u00fdmkoli jin\u00fdm obr\u00e1b\u011bc\u00edm procesem. Fr\u00e9zov\u00e1n\u00ed profil\u016f se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 v leteck\u00e9m pr\u016fmyslu pro v\u00fdrobu slo\u017eit\u00fdch d\u00edl\u016f, jako jsou lopatky turb\u00edn, sou\u010d\u00e1sti motor\u016f a konstruk\u010dn\u00ed r\u00e1my.<\/p>\n

Jak se fr\u00e9zov\u00e1n\u00ed z\u00e1vit\u016f li\u0161\u00ed od jin\u00fdch fr\u00e9zovac\u00edch operac\u00ed?<\/h3>\n

Fr\u00e9zov\u00e1n\u00ed z\u00e1vit\u016f je operace fr\u00e9zov\u00e1n\u00ed, p\u0159i kter\u00e9 se fr\u00e9za pou\u017e\u00edv\u00e1 k fr\u00e9zov\u00e1n\u00ed z\u00e1vit\u016f na vnit\u0159n\u00ed nebo vn\u011bj\u0161\u00ed stran\u011b obrobku. Tato operace se obvykle prov\u00e1d\u00ed na CNC stroji pomoc\u00ed z\u00e1vitov\u00e9 fr\u00e9zy. Fr\u00e9zov\u00e1n\u00ed z\u00e1vit\u016f nab\u00edz\u00ed n\u011bkolik v\u00fdhod oproti jin\u00fdm obr\u00e1b\u011bc\u00edm proces\u016fm pro vytv\u00e1\u0159en\u00ed z\u00e1vit\u016f, v\u010detn\u011b lep\u0161\u00ed p\u0159esnosti, opakovatelnosti a povrchov\u00e9 \u00fapravy. Fr\u00e9zov\u00e1n\u00ed z\u00e1vit\u016f se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 v automobilov\u00e9m, leteck\u00e9m a l\u00e9ka\u0159sk\u00e9m pr\u016fmyslu pro v\u00fdrobu z\u00e1vitov\u00fdch sou\u010d\u00e1st\u00ed, jako jsou \u0161rouby, \u0161rouby a spojovac\u00ed prvky.<\/p>\n

Jak\u00e9 faktory je t\u0159eba vz\u00edt v \u00favahu p\u0159i v\u00fdb\u011bru vhodn\u00e9 fr\u00e9zy?<\/h2>\n

\"Jak\u00e9<\/p>\n

Faktory, kter\u00e9 je t\u0159eba vz\u00edt v \u00favahu p\u0159i v\u00fdb\u011bru spr\u00e1vn\u00e9 fr\u00e9zy<\/h3>\n

V\u00fdb\u011br vhodn\u00e9 fr\u00e9zy m\u016f\u017ee m\u00edt z\u00e1sadn\u00ed v\u00fdznam pro dosa\u017een\u00ed \u00fasp\u011b\u0161n\u00e9ho v\u00fdrobn\u00edho projektu. Existuje n\u011bkolik faktor\u016f, kter\u00e9 mus\u00ed v\u00fdrobci zv\u00e1\u017eit p\u0159i v\u00fdb\u011bru fr\u00e9zy, v\u010detn\u011b \u0159ezan\u00e9ho materi\u00e1lu, po\u017eadovan\u00e9 povrchov\u00e9 \u00fapravy, geometrick\u00e9ho tvaru ost\u0159\u00ed, povlak\u016f, \u0159ezn\u00fdch parametr\u016f a rozpo\u010dtu.<\/p>\n

Materi\u00e1l k \u0159ez\u00e1n\u00ed: <\/strong><\/p>\n

R\u016fzn\u00e9 materi\u00e1ly vy\u017eaduj\u00ed r\u016fzn\u00e9 fr\u00e9zy. Nap\u0159\u00edklad materi\u00e1ly jako hlin\u00edk a plasty vy\u017eaduj\u00ed fr\u00e9zu z rychlo\u0159ezn\u00e9 oceli (HSS). Ocel a titan<\/a>, na druh\u00e9 stran\u011b pot\u0159ebuj\u00ed tvrdokovov\u00e9 fr\u00e9zy. Proto je z\u00e1sadn\u00ed v\u00fdb\u011br no\u017ee, kter\u00fd si efektivn\u011b porad\u00ed s \u0159ezan\u00fdm materi\u00e1lem.<\/p>\n

Po\u017eadovan\u00e1 povrchov\u00e1 \u00faprava: <\/strong><\/p>\n

Po\u017eadovan\u00e1 povrchov\u00e1 \u00faprava je dal\u0161\u00edm kritick\u00fdm faktorem p\u0159i ur\u010dov\u00e1n\u00ed typu zvolen\u00e9 fr\u00e9zy. Pro hrubou povrchovou \u00fapravu jsou ide\u00e1ln\u00ed hrubovac\u00ed no\u017ee. Pro hladkou povrchovou \u00fapravu jsou vhodn\u011bj\u0161\u00ed dokon\u010dovac\u00ed hrany.<\/p>\n

Geometrick\u00fd tvar fr\u00e9zy: <\/strong><\/p>\n

Geometrick\u00fd tvar fr\u00e9zy ovliv\u0148uje jej\u00ed schopnost \u0159ezat a v\u00fdsledek, kter\u00fd poskytne. R\u016fzn\u00e9 geometrick\u00e9 tvary zahrnuj\u00ed \u010dtvercov\u00fd konec, kulov\u00fd nos, polom\u011br rohu a vrtac\u00ed fr\u00e9zy. Spr\u00e1vn\u00fd geometrick\u00fd tvar bude z\u00e1viset na \u0159ezan\u00e9m materi\u00e1lu a po\u017eadovan\u00e9m v\u00fdsledku projektu.<\/p>\n

N\u00e1t\u011bry: <\/strong><\/p>\n

Povlaky chr\u00e1n\u00ed fr\u00e9zu p\u0159ed opot\u0159eben\u00edm a prodlu\u017euj\u00ed jej\u00ed \u017eivotnost. Mezi nejb\u011b\u017en\u011bj\u0161\u00ed vrstvy pat\u0159\u00ed TiN, TiC a TiCN. Je nezbytn\u00e9 zv\u00e1\u017eit typ pot\u0159ebn\u00e9ho povlaku v z\u00e1vislosti na materi\u00e1lu, rychlosti a rychlosti posuvu.<\/p>\n

\"Polom\u011bry
Pokra\u010dovat ve \u010dten\u00ed<\/strong>Polom\u011bry zaoblen\u00ed: V\u0161e, co pot\u0159ebujete v\u011bd\u011bt<\/span><\/div><\/a><\/div>

Parametry \u0159ez\u00e1n\u00ed: <\/strong><\/p>\n

\u0158ezn\u00e9 parametry se t\u00fdkaj\u00ed rychlosti, hloubky \u0159ezu a rychlosti posuvu. Tyto parametry ur\u010duj\u00ed efektivitu fr\u00e9zy a \u00fasp\u011b\u0161nost v\u00fdrobn\u00edho projektu. Vhodn\u00e9 \u0159ezn\u00e9 parametry by m\u011bly b\u00fdt zvoleny na z\u00e1klad\u011b \u0159ezan\u00e9ho materi\u00e1lu a po\u017eadovan\u00e9ho v\u00fdsledku.<\/p>\n

Rozpo\u010det: <\/strong><\/p>\n

Fr\u00e9zy se dod\u00e1vaj\u00ed v r\u016fzn\u00fdch cenov\u00fdch relac\u00edch. Proto je rozpo\u010det z\u00e1sadn\u00edm faktorem, kter\u00fd je t\u0159eba zv\u00e1\u017eit. Je v\u0161ak d\u016fle\u017eit\u00e9 vyhnout se sn\u00ed\u017een\u00ed kvality za ni\u017e\u0161\u00ed cenu.<\/p>\n

Druhy oceli pou\u017e\u00edvan\u00e9 pro v\u00fdrobu fr\u00e9z<\/h3>\n

Pro v\u00fdrobu fr\u00e9z se pou\u017e\u00edv\u00e1 n\u011bkolik druh\u016f oceli, v\u010detn\u011b rychlo\u0159ezn\u00e9 oceli (HSS), uhl\u00edkov\u00e9 oceli a n\u00e1strojov\u00e9 oceli. HSS je nej\u010dast\u011bji pou\u017e\u00edvan\u00e1 ocel, proto\u017ee je odoln\u00e1, snadno se brous\u00ed a zvl\u00e1dne vysok\u00e9 teploty. Uhl\u00edkov\u00e1 ocel je levn\u011bj\u0161\u00ed, ale m\u00e9n\u011b odoln\u00e1 a n\u00e1strojov\u00e1 ocel je slo\u017eit\u011bj\u0161\u00ed a ot\u011bruvzdorn\u011bj\u0161\u00ed, ale dra\u017e\u0161\u00ed.<\/p>\n

Typy tvrdokovov\u00fdch fr\u00e9z<\/h3>\n

Tvrdokovov\u00e9 fr\u00e9zy jsou k dispozici v n\u011bkolika typech: \u010dty\u0159hrann\u00e9, kulov\u00e9, rohov\u00e9 a vrtac\u00ed fr\u00e9zy. Jsou zn\u00e1m\u00e9 svou odolnost\u00ed a schopnost\u00ed zvl\u00e1dat vysok\u00e9 teploty. Jsou ide\u00e1ln\u00ed pro \u0159ez\u00e1n\u00ed tvrd\u00fdch materi\u00e1l\u016f, jako je ocel a titan.<\/p>\n

Rozd\u00edl mezi hrubovac\u00edmi a dokon\u010dovac\u00edmi fr\u00e9zami<\/h3>\n

Hrubovac\u00ed fr\u00e9zy rychle odeb\u00edraj\u00ed velk\u00e9 mno\u017estv\u00ed materi\u00e1lu, zat\u00edmco dokon\u010dovac\u00ed \u010depele dosahuj\u00ed hladk\u00e9ho povrchu. Hrubovac\u00ed fr\u00e9zy maj\u00ed m\u00e9n\u011b zub\u016f, kter\u00e9 pom\u00e1haj\u00ed odstra\u0148ovat velk\u00e9 mno\u017estv\u00ed materi\u00e1lu, zat\u00edmco dokon\u010dovac\u00ed hrany maj\u00ed v\u00edce zub\u016f pro hlad\u0161\u00ed \u0159ez.<\/p>\n

Ramenn\u00ed fr\u00e9zy a jak se pou\u017e\u00edvaj\u00ed<\/h3>\n

Rohov\u00e9 fr\u00e9zy se pou\u017e\u00edvaj\u00ed k opracov\u00e1n\u00ed rovn\u00fdch ploch pod \u00fahlem do obrobku. \u010cepel odeb\u00edr\u00e1 materi\u00e1l ze stran \u0159ezn\u00e9 hrany a zanech\u00e1v\u00e1 rovn\u00fd povrch s definovan\u00fdm \u00fahlem. B\u011b\u017en\u011b se pou\u017e\u00edvaj\u00ed p\u0159i v\u00fdrob\u011b forem nebo z\u00e1pustek.<\/p>\n

Typy fr\u00e9zek a jejich vliv na v\u00fdb\u011br fr\u00e9zy<\/h3>\n

Existuje n\u011bkolik fr\u00e9zek, v\u010detn\u011b vertik\u00e1ln\u00edch, horizont\u00e1ln\u00edch a univerz\u00e1ln\u00edch. Volba fr\u00e9zky ovliv\u0148uje v\u00fdb\u011br vhodn\u00e9 fr\u00e9zy. Nap\u0159\u00edklad, horizont\u00e1ln\u00ed fr\u00e9zky<\/a> jsou nejvhodn\u011bj\u0161\u00ed pro pr\u00e1ci na velk\u00fdch obrobc\u00edch, zat\u00edmco vertik\u00e1ln\u00ed fr\u00e9zky jsou vhodn\u011bj\u0161\u00ed pro mal\u00e9 a\u017e st\u0159edn\u011b velk\u00e9 obrobky. Pro zaji\u0161t\u011bn\u00ed p\u0159esnosti a \u00fa\u010dinnosti fr\u00e9zy je nezbytn\u00e9 vybrat vhodnou fr\u00e9zku.<\/p>\n

Doporu\u010den\u00e1 \u010detba: CNC fr\u00e9zov\u00e1n\u00ed<\/a><\/strong><\/p>\n

Jak pou\u017e\u00edvat fr\u00e9zu: Komplexn\u00ed pr\u016fvodce<\/h2>\n

\"Jak<\/p>\n

Fr\u00e9zy jsou n\u00e1stroje pou\u017e\u00edvan\u00e9 v kovoobr\u00e1b\u011bc\u00edm pr\u016fmyslu k odstra\u0148ov\u00e1n\u00ed p\u0159ebyte\u010dn\u00e9ho materi\u00e1lu z obrobk\u016f. Dod\u00e1vaj\u00ed se v r\u016fzn\u00fdch tvarech a velikostech, z nich\u017e ka\u017ed\u00e1 je speci\u00e1ln\u011b navr\u017eena pro \u0159ez\u00e1n\u00ed. Mezi z\u00e1kladn\u00ed \u010d\u00e1sti fr\u00e9zy pat\u0159\u00ed stopka, t\u011blo, \u0159ezn\u00e9 hrany a zuby. Noha je \u010d\u00e1st, kter\u00e1 zapad\u00e1 do v\u0159etena stroje, zat\u00edmco t\u011blo dr\u017e\u00ed \u0159ezn\u00e9 hrany a zuby. Zuby jsou \u010d\u00e1sti, kter\u00e9 prov\u00e1d\u011bj\u00ed \u0159eznou pr\u00e1ci, a \u0159ezn\u00e9 hrany jsou ostr\u00e9 hrany pod\u00e9l zub\u016f, kter\u00e9 odstra\u0148uj\u00ed materi\u00e1l z obrobku.<\/p>\n

\u0158ezn\u00fd proces spojen\u00fd s fr\u00e9zov\u00e1n\u00edm je komplexn\u00ed s\u00e9rie \u00fakon\u016f, kter\u00e9 vedou k odstran\u011bn\u00ed materi\u00e1lu z obrobku. Fr\u00e9za se um\u00edst\u00ed na obrobek a ot\u00e1\u010d\u00ed se vysokou rychlost\u00ed, zat\u00edmco obrobek je um\u00edst\u011bn tak, aby p\u0159ijal \u0159ez. \u0158ezn\u00e9 hrany fr\u00e9zy se dost\u00e1vaj\u00ed do kontaktu s obrobkem a odeb\u00edraj\u00ed \u010d\u00e1st materi\u00e1lu. Tento proces se opakuje, dokud nen\u00ed dosa\u017eeno po\u017eadovan\u00e9ho tvaru a velikosti obrobku.<\/p>\n

\u0158ezn\u00e1 rychlost fr\u00e9zy je d\u00e1na jej\u00edm pr\u016fm\u011brem, povrchovou rychlost\u00ed \u0159ezan\u00e9ho materi\u00e1lu a tvrdost\u00ed materi\u00e1lu. R\u016fzn\u00e9 typy fr\u00e9z vy\u017eaduj\u00ed r\u016fzn\u00e9 \u0159ezn\u00e9 rychlosti pro dosa\u017een\u00ed optim\u00e1ln\u00edch v\u00fdsledk\u016f. Nap\u0159\u00edklad fr\u00e9zy z rychlo\u0159ezn\u00e9 oceli mohou b\u00fdt obecn\u011b provozov\u00e1ny rychlost\u00ed v rozmez\u00ed od 100 do 400 SFM (povrchov\u00e9 stopy za minutu), zat\u00edmco fr\u00e9zy z tvrdokovu lze pou\u017e\u00edvat s mnohem vy\u0161\u0161\u00edmi rychlostmi mezi 350 a\u017e 1 000 SFM.<\/p>\n

Pro zachov\u00e1n\u00ed a prodlou\u017een\u00ed \u017eivotnosti fr\u00e9zovac\u00edch n\u00e1stroj\u016f je nezbytn\u00e9 o n\u011b spr\u00e1vn\u011b pe\u010dovat. To zahrnuje pravideln\u00e9 \u010di\u0161t\u011bn\u00ed a su\u0161en\u00ed \u010depel\u00ed po pou\u017eit\u00ed, stejn\u011b jako pou\u017eit\u00ed vhodn\u00fdch maziv v p\u0159\u00edpad\u011b pot\u0159eby. Nezbytn\u00e9 je tak\u00e9 udr\u017een\u00ed spr\u00e1vn\u00e9 rychlosti posuvu, zat\u00ed\u017een\u00ed t\u0159\u00edsky a ot\u00e1\u010dek za minutu (ot\/min) pro konkr\u00e9tn\u00ed typ pou\u017eit\u00e9 fr\u00e9zy.<\/p>\n

P\u0159i pou\u017e\u00edv\u00e1n\u00ed fr\u00e9z by m\u011bla b\u00fdt bezpe\u010dnost nejvy\u0161\u0161\u00ed prioritou. V\u017edy pou\u017e\u00edvejte vhodn\u00e9 osobn\u00ed ochrann\u00e9 prost\u0159edky, v\u010detn\u011b ochrann\u00fdch br\u00fdl\u00ed, br\u00fdl\u00ed a rukavic. P\u0159ed zah\u00e1jen\u00edm fr\u00e9zov\u00e1n\u00ed by m\u011bl b\u00fdt obrobek pevn\u011b zaji\u0161t\u011bn ve stroji a za\u0159\u00edzen\u00ed by m\u011blo b\u00fdt \u0159\u00e1dn\u011b uzemn\u011bno. Krom\u011b toho si p\u0159ed pou\u017eit\u00edm jak\u00e9koli fr\u00e9zy p\u0159e\u010dt\u011bte a dodr\u017eujte v\u0161echny pokyny v\u00fdrobce.<\/p>\n

Existuje n\u011bkolik b\u011b\u017en\u00fdch chyb, kter\u00fdm je t\u0159eba se p\u0159i pou\u017e\u00edv\u00e1n\u00ed fr\u00e9z vyvarovat. Pat\u0159\u00ed mezi n\u011b pou\u017eit\u00ed nespr\u00e1vn\u00e9 fr\u00e9zy, p\u0159\u00edli\u0161 vysok\u00e1 \u0159ezn\u00e1 rychlost a nedodr\u017eov\u00e1n\u00ed spr\u00e1vn\u00fdch rychlost\u00ed posuvu a zat\u00ed\u017een\u00ed t\u0159\u00edsky. Je tak\u00e9 d\u016fle\u017eit\u00e9 vyhnout se p\u0159\u00edli\u0161 hlubok\u00fdm \u0159ez\u016fm, proto\u017ee to m\u016f\u017ee n\u00e1stroj nadm\u011brn\u011b nam\u00e1hat a zp\u016fsobit jeho p\u0159ed\u010dasn\u00e9 opot\u0159eben\u00ed. P\u0159i dodr\u017eov\u00e1n\u00ed spr\u00e1vn\u00fdch postup\u016f a osv\u011bd\u010den\u00fdch postup\u016f mohou fr\u00e9zy zajistit p\u0159esn\u00e9 a efektivn\u00ed odstra\u0148ov\u00e1n\u00ed materi\u00e1lu pro r\u016fzn\u00e1 pr\u016fmyslov\u00e1 odv\u011btv\u00ed.<\/p>\n

Z\u00e1v\u011br<\/h2>\n

V\u00fdb\u011br vhodn\u00e9 fr\u00e9zy je z\u00e1sadn\u00ed pro \u00fasp\u011bch v jak\u00e9mkoli procesu fr\u00e9zov\u00e1n\u00ed. Spr\u00e1vn\u00fd n\u00e1stroj zaji\u0161\u0165uje dosa\u017een\u00ed po\u017eadovan\u00e9ho tvaru nebo velikosti a kone\u010dn\u00fd produkt spl\u0148uje po\u017eadovan\u00e9 standardy kvality a p\u0159esnosti. V\u00fdb\u011br nespr\u00e1vn\u00e9ho \u0159ezn\u00e9ho n\u00e1stroje m\u016f\u017ee v\u00e9st k po\u0161kozen\u00edm, kter\u00e1 vy\u017eaduj\u00ed v\u00fdm\u011bnu n\u00e1stroje, co\u017e vede k nepl\u00e1novan\u00fdm prostoj\u016fm, ztr\u00e1t\u011b p\u0159\u00edjm\u016f a sn\u00ed\u017een\u00ed produktivity. Pochopen\u00ed toho, k \u010demu je ka\u017ed\u00e1 fr\u00e9za nejlep\u0161\u00ed, a v\u00fdb\u011br spr\u00e1vn\u00e9ho n\u00e1stroje je proto z\u00e1sadn\u00ed pro maximalizaci v\u00fdsledk\u016f jak\u00e9hokoli fr\u00e9zovac\u00edho projektu.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n