chumbador prof. isaac n l silva professor adjunto – pucrs
TRANSCRIPT
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Chumbador
Prof. Isaac N L SilvaProfessor Adjunto – PUCRS
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Sequencia de operações
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Fixação e posicionamento da ferramenta de corte
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Facear topo até eliminar marcas da serra(sem medida)
Furar com broca “decentro”
cilindrar diâmetro 9,3mm por comp. de 30 mm
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Fixar peça para 1ª. operação
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Posicionar a ferramenta para facear, e facear o topo
Fixar o carro longitudinalSempre que usar :o carro transversal ou o carro superior
Inclinação menor que 90
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Furar “decentro”
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Fixar cabeçote móvel
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Movimentar a broca “ decentro”
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Marcar o comprimento a cilindrar
~29 mm
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Criar a referência para a medição do diâmetro com o colar milimétrico
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Cada traço do carro transversal = 0.05mm no
0.05mm no
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Cilindrar até 9.3mm
9.3mm
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“Acertar” o comprimento!Novamente fixar
o carro long.
Com o carro transversal, fazendo as medidas no carro superior
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Cada traço do carro superior
= 0.05mm
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Virar a peça talhar o cone e a rosca
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Facear a outra ponta ate L =30mm
L =30mm
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Parafusos de fixação do carro superior
Inclinar o carro superior
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45
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Direção de avançoInclinação da aresta de corte Menor que 90
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Talhar a rosca
Fixar no meio da morça
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Tarraxa ou cossinete
Desandador com tarraxa
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Pronto