Estudo da influência do diâmetro do orifício piloto na resistência ao arrancamento do parafuso pedicular.

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Diâmetro da broca

(mm)

Força Máxima média (N)

Desvio padrão

Coefi ciente de variação

(%)

Número de testes realizados 3,2 875,4 62,57 7,148 10 3,8 848,4 75,24 8,869 10 *4,0 746,7 64,34 8,616 10 *4,5 524,7 84,83 13,12 10

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(mm)

Desvio

padrão Coefi ciente de variação (%)

Número de testes realizados

* 3,2 50,24 3,807 7,578 10 3,8 30,23 2,582 8,542 10 * 4,5 6,117 1,486 24,30 10 * 4,8 1,181 0,325 27,53 10

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(3)

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(mm)

Desvio

*4,0 1047,0 95,43 9,116 10 4,5 935,7 92,25 9,859 10 4,8 868,1 66,82 7,697 10 5,0 809,8 65,93 8,142 10 *5,5 641,7 65,49 10,21 10

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(mm)

Desvio

Número de testes realizados *4,0 63,71 5,724 8,984 10 *4,5 49,45 3,439 6,954 10 4,8 39,82 3,672 9,222 10 *5,0 24,86 1,486 5,980 10 *5,5 12,65 1,572 12,43 10

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(mm)

Desvio

* 4,0 786,1 146,8 18,67 10 4,8 504,2 145,9 28,94 10 * 5,5 235,4 50,34 21,39 10

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(4)

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(mm)

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1096

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(mm)

Desvio

padrão Coefi ciente de variação (%) de testes Número realizados *4,0 74,72 2,460 3,293 10 4,8 70,97 4,419 6,227 10

*5,0 61,56 3,570 5,800 10 *5,5 43,92 3,366 7,664 10 *6,5 5,50 1,268 23,03 10

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diâmetro da broca (mm)

parafuso corpo de prova 3,2 3,8 4 4,5 4,8 5 5,5 6 6,5

5 mm madeira * *

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6mm

madeira *

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