Grinidng Flush

By sbarba2365 Date 09-15-2018 22:16 Edited 09-15-2018 23:16

I have a drawing with no finish symbol on the weld symbol. Company insists that they have the option to ground it flush if it doesn't have the grinding symbol. This guy just confused the heck out of me. The drawing does not state that grinding is allowed.

By 803056

Date 09-16-2018 15:25

Unless grinding is specified, whether to grind or not to grind is left to the contractor's discretion.

As to the discussion regarding the term “flush”, some codes define what flush is. AWS D1.1 is an example of a code that does address what “flush” is.

Al

By welderbrent (*****)

Date 09-17-2018 22:36

Since a weld is only defined as complete when it is at least flush, it is not a matter of allowing grinding. If the contractor wishes to waste time grinding down perfectly good welds, they are free to do so. Most codes establish maximum re-enforcement of welds as well as flush standards which will also set maximum amounts the base material can be 'thinned'.

Yes, they really do have the option to grind or leave as welded. Why they would want to waste time grinding would cause me to examine the weld very closely. WHAT ARE THEY HIDING??

Having the symbol makes it mandatory to be reasonably flush. Having the symbol WITH a 'G' over it makes it mandatory to GRIND it as flush as possible. Clause 5 describes flush. I will let you find the complete text.