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undercut - Is a sharp and cone-shaped recess at the border of the www.tapirus.info 54 из 59 surface of the weld with the base metal

  • Set the welding gauge at the zero position 
  • Pull the fillet arm 2 out of the main gauge plate 1, matching the mark with a value corresponding to the diameter of the pipe being monitored 
  • Fix and lock the stop position by tightening the fillet arm rivet 6. 
  • Position the welding gauge on the test object. 
  • After rearranging the pivots in the groove located on the right side of the welding gauge, adjust them until they come into contact with the inspected object. 
  • Lock the pivots in that position where there is an undercut as shown by the illustration.

˟ the parameter measured during the monitoring process is highlighted in red

  • Using the fillet arm 2, position the welding gauge across the pipe. 
  • Position the welding gauge on the undercut , close to the boundary of the undercut and the base metal. 
  • Lower the top High-Lo arm 4 until the taper gauge 5 makes contact with the surface of the test object at the point of measurement. 
  • Take the value of the parameter h from the vertical scale H 
  • To determine the desired parameter h shown by the illustration, use a calculator.

Using the calculator, you can determine the desired value of the from the measured parameters