Posted by Buzzman72 on January 29, 2010 at 00:15:14 from (74.129.194.33):
In Reply to: Welding question posted by NCWayne on January 28, 2010 at 23:41:57:
Any of you folks own a Ford Explorer? I worked from 2000 to 2005 in a plant that made Explorer frames, and the only stick welders we had, to my knowledge, in the plant were the ones the maintenance guys used on the fixtures themselves. EVERY WELD on the frame was done by MIG...some of the longer welds were done robotically, shorter welds and tacks were done manually, all with MIG welders. Robot welders usually used 1000-lb spools, while the manual welders used 45-pound spools...most of which was ER70S-6, with standard argon/CO2 75/25 shielding gas.
So, whether you know it or not, you may be trusting your very life--as well as the lives of loved ones--to a vehicle with a MIG-welded frame. And I think the frames have managed to do quite well WITHOUT being stick-welded, for the front suspension crossmembers to be able to stand up to the forces those welds undergo when driving at expressway speeds, or in moderate-speed cornering...probably a lot more load than many small tractor loader arms will ever see at one time.
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