Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
|
#1
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
I am doing some rebuild on my aluminum river jet boat. Going to weld closed
some old bolt holes in the gunnel and dash. What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? |
#2
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
On Apr 22, 10:51*pm, "Califbill" wrote:
*What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. *If I had a TIG outfit, might be easier, but only a spool gun. *1/4" steel plate? *Stainless plate? I like copper. Dan |
#3
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
wrote in message
... On Apr 22, 10:51 pm, "Califbill" wrote: What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? I like copper. Dan Reply: I thought about that, but since this is 50xx aluminum for corrosion protection, I was thinking that would add copper to the weld. |
#4
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
Califbill wrote: wrote in message ... On Apr 22, 10:51 pm, "Califbill" wrote: What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? I like copper. Dan Reply: I thought about that, but since this is 50xx aluminum for corrosion protection, I was thinking that would add copper to the weld. I recall Ernie noting not to use copper to back aluminum for that reason. |
#5
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
"Pete C." wrote in message ster.com... Califbill wrote: wrote in message ... On Apr 22, 10:51 pm, "Califbill" wrote: What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? I like copper. Dan Reply: I thought about that, but since this is 50xx aluminum for corrosion protection, I was thinking that would add copper to the weld. I recall Ernie noting not to use copper to back aluminum for that reason. Right. Use stainless to back up aluminum. Ceramic works too. Steel and copper are a no-no...... phil k. |
#6
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
On Fri, 22 Apr 2011 20:04:51 -0700 (PDT), "
wrote: On Apr 22, 10:51*pm, "Califbill" wrote: *What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. *If I had a TIG outfit, might be easier, but only a spool gun. *1/4" steel plate? *Stainless plate? I like copper. Me too. |
#7
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
"Don Foreman" wrote in message ... On Fri, 22 Apr 2011 20:04:51 -0700 (PDT), " wrote: On Apr 22, 10:51 pm, "Califbill" wrote: What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? I like copper. Me too. me too for stick & MIG |
#8
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
On Fri, 22 Apr 2011 20:04:51 -0700 (PDT), "
wrote: On Apr 22, 10:51*pm, "Califbill" wrote: *What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. *If I had a TIG outfit, might be easier, but only a spool gun. *1/4" steel plate? *Stainless plate? I like copper. Dan Same here Gunner -- "If I say two plus two is four and a Democrat says two plus two is eight, it's not a partial victory for me when we agree that two plus two is six. " Jonah Goldberg (modified) |
#9
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
On 4/22/2011 23:04, wrote:
On Apr 22, 10:51 pm, wrote: What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? I like copper. Dan I like bacon. G -- Steve Walker (remove brain when replying) |
#10
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
Steve Walker wrote: I like bacon. G Cannibal!!! ;-) -- You can't fix stupid. You can't even put a Band-Aid™ on it, because it's Teflon coated. |
#11
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
Califbill wrote:
I am doing some rebuild on my aluminum river jet boat. Going to weld closed some old bolt holes in the gunnel and dash. What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? Copper sheet -- Steve W. |
#12
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
On 4/22/2011 7:51 PM, Califbill wrote:
I am doing some rebuild on my aluminum river jet boat. Going to weld closed some old bolt holes in the gunnel and dash. What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? I have always been told stainless steel plate. Ernie on the welding group would give you the best advice probably. Even though those are relatively small welds you are going to on them for a while to fill the holes, or going on and off them. One trick I have used to help control heat is to put sopping wet rags behind my backing plate. You aluminum still have to be cleaned and brushed and cleaned to be sure of getting a good weld. |
#13
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
On Fri, 22 Apr 2011 19:51:24 -0700, "Califbill"
wrote: I am doing some rebuild on my aluminum river jet boat. Going to weld closed some old bolt holes in the gunnel and dash. What is a good backing plate to prevent a big gob of aluminum slump on the backside, where I can not get the grinder after I use the spool gun on the top. If I had a TIG outfit, might be easier, but only a spool gun. 1/4" steel plate? Stainless plate? Copper plate. |
#14
Posted to rec.crafts.metalworking
|
|||
|
|||
Welding question.
|
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Welding question.... | UK diy | |||
Arc welding question | Home Repair | |||
Welding rod question | Metalworking | |||
TIG welding question | Metalworking | |||
mig welding question | Metalworking |