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The tools move perpendicularly to the axis of the pipe by means of a mechanical transmission system. Cutting lengths of pipe from an original base pipe. Parts of a Groove Weld The need to achieve complete fusion has been emphasized in this article. For avoiding welding operations that are too long and too costly from a labor and consumables point of view, preparations for welding joints with thicknesses of over 20mm. By corrosive products, and mainly in stainless steel pipe systems, the crack between pipe and flange, fitting or Valve can give corrosion problems. Axial Movement Machines Axial movement machines are equipped with a plate that moves in line with the axis of the pipe.
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There are four basic joints used in arc welding:


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Basic Welding Joints - Butt welded and Fillet welded joints -


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Choosing a Butt Weld Joint Preparation

There are two other elements that may be seen on the reference line that provide information about the weld. The actual weld size is again measured from the surface of the groove through the bottom of the groove but now includes the expected penetration of the weld. The molecules of each separate piece of metal and the filler metal bond together when you have 1 atomic cleanliness and 2 atomic closeness see Figure 2.
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