所以，焊前直接采用火焰切割坡口的工艺可行。

So before welding, the process flame cutting groove is feasible.

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此外，小车切割作为辅助切割工具与数控切割机配套使用，专门用来加工焊接坡口。

In addition, the car cut as auxiliary cutting tools and nc cutter, dedicated to supporting the use of processing welding grooves.

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等离子切割有其独特的优点，利用等离子进行坡口切割，以经济角度来看，变得越来越重要。

Plasma cutting has its unique advantages, using plasma cutting groove on, with economic point of view, is becoming more and more important.

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