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POSTUPCI ODVAJANJA ČESTICA
PILJENJE
Srednja škola Biograd na Moru
Ie. brodomehaničar/brodograditelj
TEHNOLOGIJA OBRADE I MONTAŽE
 Obrazovni ciljevi i zadaci: Učenici će naučiti postupke piljenja,vrste ručnih
pila, i osnovne dijelove ručne pile.
 Obrazovni ishodi: Učenici će umjeti raspoznavati ručne pile,njihovu primjenu i
odabrati pilni list u odnosu na materijal obrade.
TEHNOLOGIJA OBRADE I MONTAŽE
PILJENJE – RUČNE PILE
Piljenje je postupak odvajanja čestica u kojem tvrđi materijal
otkida mekši te tako napreduje kroz njega. Kod piljenja i rezanja
područje obrade ograničeno je na malu površinu, što u stvari predstavlja
širinu reza, te se može vršiti rotacionim, pravocrtnim, vibracionim i
nekim specijalnim načinima.
Piljenje je postupak koji se upotrebljava kod odsijecanja ili
dijeljenja materijala..
POSTUPCI ODVAJANJA ČESTICA
PILJENJE
Generalno gledano postoje dva osnovna i
najčešće primjenjivana načina piljenja u
odnosu na gibanje alata, odnosno oštrice
kojom se pili. Prema načinu gibanja alata
piljenje se dijeli:
 pravocrtno piljenje
 kružno piljenje.
PILJENJE
PILJENJE - PRAVOCRTNO
Pravocrtno piljenje u koje spada i
vibraciono, sastoji se od pravocrtnih pokreta
lista pile po materijalu u kojega se prodire.
Pravocrtno piljenje može biti izvedeno
rotacijom beskonačnog lista pile.
Kod pravocrtnih rezanja koriste se fiksno
postavljene električne pile. Iako se ovaj način
piljenja radi sa strojevima velikih dimenzija i
mase, njegova prednost je izvođenje rezova
velike dubine reza.
PILJENJE – PRAVOCRTNO
1.RUČNE PILE
Ručne pile se sastoje od tri glavna dijela,
• okvir pile,
• ručke,
• Lista pile.
Postoje različite veličine i oblici ručnih pila,
razlikuju se i po broju i izgledu zubi, ovisno o
drvetu koje je potrebno rezati. Tako se pile s
većim zubima koriste za početna rezanja,
gdje je rezana površina gruba. Pile s manjim
zubima koriste se za završne obrade.
okvir pile ručka
list pile
PILJENJE – PRAVOCRTNO
1.RUČNE PILE
klasična pila
leđno ukrućena pila pile za obline
okvirne pile
Vrste ručnih pila
1.RUČNE PILE –LIST PILE
Glavne dimenzije lista pile su:
L-duljina lista pile
A – širina lista pile
S – debljina lista pile
1.RUČNE PILE –LIST PILE
Zavisno od vrste materijala biraju se listovi pila sa
brojem zubi na duljini lista pile od 25 mm:
• za meki čelik, bakar, aluminij ..14 - 16 zubi
• za tvrdi čelik ........................…18 - 25 zubi
• za tanke limove i cijevi.........…25 - 32 zuba
PONOVIMO !
1. Što je piljenje?
2. Koje vrste piljenja znaš u odnosu na gibanje alata?
3. Koje vrste ručnih pila ponaješ?
4. Koji su dijelovi ručne pile?
5. Koje su glavne dimenzije lista ručne pile?
6. Kako odabiremo pilni list?

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Obrada-i-montaža_Postupci-odvajanja-čestica-Pravocrtno-piljenje_1-razred (1).ppsx

  • 1. POSTUPCI ODVAJANJA ČESTICA PILJENJE Srednja škola Biograd na Moru Ie. brodomehaničar/brodograditelj TEHNOLOGIJA OBRADE I MONTAŽE
  • 2.  Obrazovni ciljevi i zadaci: Učenici će naučiti postupke piljenja,vrste ručnih pila, i osnovne dijelove ručne pile.  Obrazovni ishodi: Učenici će umjeti raspoznavati ručne pile,njihovu primjenu i odabrati pilni list u odnosu na materijal obrade. TEHNOLOGIJA OBRADE I MONTAŽE PILJENJE – RUČNE PILE
  • 3. Piljenje je postupak odvajanja čestica u kojem tvrđi materijal otkida mekši te tako napreduje kroz njega. Kod piljenja i rezanja područje obrade ograničeno je na malu površinu, što u stvari predstavlja širinu reza, te se može vršiti rotacionim, pravocrtnim, vibracionim i nekim specijalnim načinima. Piljenje je postupak koji se upotrebljava kod odsijecanja ili dijeljenja materijala.. POSTUPCI ODVAJANJA ČESTICA PILJENJE
  • 4. Generalno gledano postoje dva osnovna i najčešće primjenjivana načina piljenja u odnosu na gibanje alata, odnosno oštrice kojom se pili. Prema načinu gibanja alata piljenje se dijeli:  pravocrtno piljenje  kružno piljenje. PILJENJE
  • 5. PILJENJE - PRAVOCRTNO Pravocrtno piljenje u koje spada i vibraciono, sastoji se od pravocrtnih pokreta lista pile po materijalu u kojega se prodire. Pravocrtno piljenje može biti izvedeno rotacijom beskonačnog lista pile. Kod pravocrtnih rezanja koriste se fiksno postavljene električne pile. Iako se ovaj način piljenja radi sa strojevima velikih dimenzija i mase, njegova prednost je izvođenje rezova velike dubine reza.
  • 7. Ručne pile se sastoje od tri glavna dijela, • okvir pile, • ručke, • Lista pile. Postoje različite veličine i oblici ručnih pila, razlikuju se i po broju i izgledu zubi, ovisno o drvetu koje je potrebno rezati. Tako se pile s većim zubima koriste za početna rezanja, gdje je rezana površina gruba. Pile s manjim zubima koriste se za završne obrade. okvir pile ručka list pile PILJENJE – PRAVOCRTNO 1.RUČNE PILE
  • 8. klasična pila leđno ukrućena pila pile za obline okvirne pile Vrste ručnih pila
  • 9. 1.RUČNE PILE –LIST PILE Glavne dimenzije lista pile su: L-duljina lista pile A – širina lista pile S – debljina lista pile
  • 10. 1.RUČNE PILE –LIST PILE Zavisno od vrste materijala biraju se listovi pila sa brojem zubi na duljini lista pile od 25 mm: • za meki čelik, bakar, aluminij ..14 - 16 zubi • za tvrdi čelik ........................…18 - 25 zubi • za tanke limove i cijevi.........…25 - 32 zuba
  • 11. PONOVIMO ! 1. Što je piljenje? 2. Koje vrste piljenja znaš u odnosu na gibanje alata? 3. Koje vrste ručnih pila ponaješ? 4. Koji su dijelovi ručne pile? 5. Koje su glavne dimenzije lista ručne pile? 6. Kako odabiremo pilni list?