Gouging or Grinding ?

Date 02-28-2006 07:43

it may seems a foolish question but it is : gouging would cause haz region by nearly 600C degree in applying area then it do'nt explain away using grinding instead for CJP weld

By comcam6 (*)

Date 02-28-2006 11:04

it is clear that all cutting and gouging procedure crate a haz region ,but HAZ produced by air carbon arc and plasma arc gouging is normally so shallow that it should be of little or no consequence particularly on surfaces that will be reheated by subsequent welds.

regards
hsh

By thcqci

Date 03-01-2006 13:40

The AWS D1.1 allows both techniques so they must think there is no significant problem. I have never put a temperature measuring device on a ground surface, but grinding can certainly create great amount of localized heating. I would venture the temperatures could approach those of gouging.

By G.S.Crisi (****)

Date 03-01-2006 17:54

Most times you can cool down the metal being ground by spraying water onto it, which of course you can't do when gouging.
So, metal heating because of grinding shoudn't be a great concern.
Giovanni S. Crisi
Sao Paulo - Brazil