Posted by: heatsschoolofweldingtechnology | July 21, 2009

Peening


In accordance to the definition of AWS D1.1, peening is the mechanical working of metals using impact blows.

As per section 5.27 of AWS D1.1, peening may be used on intermediate layers for control of shrinkage stresses in thick welds to prevent cracking or distortion or both. No peening shall be done on the root or surface layer of the weld or base metal at the edges of the weld except as provided in section 2.20.6.6(3). Care should be taken to prevent overlapping or cracking of the weld or base metal.

The use of manual slag hammers, chisels, and lightweight vibrating tools for the removal of slag and spatter is allowed and shall not be considered peening.

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  1. […] PeeningAs per section 5.27 of AWS D1.1, peening may be used on intermediate layers for control of shrinkage stresses in thick welds to prevent cracking or distortion or both. No peening shall be done on the root or surface layer of the weld or … […]


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