Tweco ArcMaster 401MST Manual do Utilizador descarregar pdf (Página 65)

ARCMASTER 401MST POWER SOURCE

Manual 0-5287 4-9 BASIC WELDING GUIDE

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Figure 4-21: Principle of Presetting

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PreheatPreheat

Dotted lines show effect if no preheat is used

Weld

Figure 4-22: Reduction of Distortion by Preheating

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Figure 4-23: Examples of Distortion

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Block Sequence.

The spaces between the welds are

ﬁlled in when the welds are cool.

Figure 4-24: Welding Sequence

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Figure 4-25: Step back Sequence

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Figure 4-26: Chain Intermittent Welding

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Figure 4-27: Staggered Intermittent Welding

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 83 84

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Tweco ArcMaster 401MST Manual do Utilizador Página 65