All depends where the weld is. If the barrel is welded to the receiver then no I wouldnt fire it but it can still be worth some bucks "if" it has original parts. Safety alone if original can go for $100.00- $150.00 Again all depends on asking price.
If weld is in the reciver this may be the "7th rd stoppage " fix which is a arsenal repair. Aagin all depends were it is thats why I asked for pictures.
Cant jump to any conclusions without more info.
I do know just alittle about Garands