Silver solder 12L14?
I have a 5 hp leaf blower that has an aluminum hub for the fan/impeller.
It has wallowed out, both in the keyway and bore, so I decided to make a new one from steel. I had a piece of 12L14 that was just-right and I turned, bored, and reamed it for a perfect fit. The hub needs a cross piece for bolting on the fan and I made it from a piece of 1/4 x 1-1/2 mystery steel. It all fit up real nice and I was all ready weld them together when I had an "Oh, crap" moment: one can't weld 12L14. (Or so I've heard - the weld is supposedly real crappy from the lead.) Assuming that welding is a bad idea, can I silver solder them? The cross piece sits on a shoulder on the hub, with a matching surface that's 3/16 wide & 1-1/2" diameter and a cylindrical contact of 1/4 x 1-1/8 diameter. Nearly 2 square inches of contact. The basic question is: will the lead affect the solder? Having the fan come off at 3000 rpm is not the kind of excitement that I need. Bob |
Silver solder 12L14?
On Mon, 09 Dec 2013 22:49:05 -0500, Bob Engelhardt
wrote: I have a 5 hp leaf blower that has an aluminum hub for the fan/impeller. It has wallowed out, both in the keyway and bore, so I decided to make a new one from steel. I had a piece of 12L14 that was just-right and I turned, bored, and reamed it for a perfect fit. The hub needs a cross piece for bolting on the fan and I made it from a piece of 1/4 x 1-1/2 mystery steel. It all fit up real nice and I was all ready weld them together when I had an "Oh, crap" moment: one can't weld 12L14. (Or so I've heard - the weld is supposedly real crappy from the lead.) Assuming that welding is a bad idea, can I silver solder them? The cross piece sits on a shoulder on the hub, with a matching surface that's 3/16 wide & 1-1/2" diameter and a cylindrical contact of 1/4 x 1-1/8 diameter. Nearly 2 square inches of contact. The basic question is: will the lead affect the solder? Having the fan come off at 3000 rpm is not the kind of excitement that I need. Bob Welding...also consider brazing -- "Owning a sailboat is like marrying a nymphomaniac. You don’t want to do that but it is great if your best friend does. That way you get all the benefits without any of the upkeep" --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
Silver solder 12L14?
On 2013-12-10, Bob Engelhardt wrote:
I have a 5 hp leaf blower that has an aluminum hub for the fan/impeller. It has wallowed out, both in the keyway and bore, so I decided to make a new one from steel. I had a piece of 12L14 that was just-right and I turned, bored, and reamed it for a perfect fit. The hub needs a cross piece for bolting on the fan and I made it from a piece of 1/4 x 1-1/2 mystery steel. Is that a piece that I sold you? It all fit up real nice and I was all ready weld them together when I had an "Oh, crap" moment: one can't weld 12L14. (Or so I've heard - the weld is supposedly real crappy from the lead.) Assuming that welding is a bad idea, can I silver solder them? The cross piece sits on a shoulder on the hub, with a matching surface that's 3/16 wide & 1-1/2" diameter and a cylindrical contact of 1/4 x 1-1/8 diameter. Nearly 2 square inches of contact. The basic question is: will the lead affect the solder? Having the fan come off at 3000 rpm is not the kind of excitement that I need. http://www.practicalmachinist.com/vb...r-12l14-93232/ |
Silver solder 12L14?
On 12/9/2013 11:46 PM, Ignoramus27028 wrote:
On 2013-12-10, Bob wrote: ... a piece of 1/4 x 1-1/2 mystery steel. Is that a piece that I sold you? Why? Are you in the "mystery steel" business? BG ... The basic question is: will the lead affect the solder? ... http://www.practicalmachinist.com/vb...r-12l14-93232/ Thanks. I skipped Googling it, thinking that the question was too far out in left field. I should have known that you can find anything with Google. Bob |
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