Ever see titanium arm fail like this?

[TROLLCAT]

remove the good A arm and inspect it are the bushing a tight fit ?

at first I figured the bushing were pressed in and possibly to tight for the A arm and stretched or cracked it

 

[ippielb]

remove the good A arm and inspect it are the bushing a tight fit ?

at first I figured the bushing were pressed in and possibly to tight for the A arm and stretched or cracked it

Tomorrow I'll take the other off and inspect it. Good idea on that. With the tensile strength of titanium that might've caused the problem if it has the pressure on it already.


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[JMCX]

It looks like an expansion issue from the bushing(s) or maybe they were too tight to begin with. Have you inspected the other side?

 

[ippielb]

It looks like an expansion issue from the bushing(s) or maybe they were too tight to begin with. Have you inspected the other side?

Looked at the other side didn't see any cracks, but tomorrow I'm going to remove it and check more thoroughly.


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[adamg]

Water in the bushing / pivot joint, froze, expanded, popped open the Ti sleeve? I would contact the manufacturer. I know a riding buddy broke his nearly new Ti arm and he is sending it back for repair/replacement.

 

[ippielb]

Water in the bushing / pivot joint, froze, expanded, popped open the Ti sleeve? I would contact the manufacturer. I know a riding buddy broke his nearly new Ti arm and he is sending it back for repair/replacement.

Yeah definitely going to call dan at alt impact tomorrow. I called already but it's a weekend I didn't expect him to answer. He's been good before so hopefully he can help me out. Sled has been outside and tarred, don't think water could've gotten into them.


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[ippielb]

Well, got into contact with Dan, he's going to take care of me. I just got to ship it down to him and pay for return shipping. Stand up guy I tell you.


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[NoBrakes!]

Good to hear you're getting support. Has he seen this happen before?

 

[ippielb]

Good to hear you're getting support. Has he seen this happen before?

I never asked I will ask him tomorrow. Never had a chance to go out and take the other arm off inspect it. Had company come over. I'll double check tomorrow.


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[znowman_9]

Maybe the fabricator struck an arc on that side sleeve and then rolled it accidentally and welded it out not noticing till the end. Later he ground and grained it out. Stray arc strikes are generally not good and leave a hardened area.


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[ippielb]

Maybe the fabricator struck an arc on that side sleeve and then rolled it accidentally and welded it out not noticing till the end. Later he ground and grained it out. Stray arc strikes are generally not good hardened area.


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Took the other one off and can't see really anything. The bushings seem like they're aluminum. But the one bust arm is definitely tweaked a bit now I forgot to call and ask if he's ever seen this before though

The one tube is bent down or up



Can see in this photo that there is an ever so slight sway on the reflection where the cross tube is welded on.




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[znowman_9]

Yeesh. Ti is quite the element. It's great yield strength but ductility is isn't great. Weigh for weight with steel it's many times stronger. Just the way physics works. Weldin it is a bit similar to ss. Especially in cosmetic or grained stainless, You can hide your arc strikes completely with some 60 grit emery cloth then red and grey scotch bright. Other than The welds look great with nice finish. Either manu. Defect, material defect or you just took to the limit.


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[znowman_9]

Unobtanium welding specializes in ti in Langdon, AB. Likely some of the steadiest hands in the land.


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[ippielb]

Yeesh. Ti is quite the element. It's great yield strength but ductility is isn't great. Weigh for weight with steel it's many times stronger. Just the way physics works. Weldin it is a bit similar to ss. Especially in cosmetic or grained stainless, You can hide your arc strikes completely with some 60 grit emery cloth then red and grey scotch bright. Other than The welds look great with nice finish. Either manu. Defect, material defect or you just took to the limit.


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Lol I hope that a 15km/h Suspension movement isn't its limit or these are going for sale. I think for the time being I'm going to take them off and put on the stock Suspension for now. That way I can still move the sled around. Doubt it's going to be ridden this year.

 

[allrevsrule]

I have two Ti. Alt Dan sleds , two with Ti. fronts, and one rear Ti skid . 2008 still going and retarded Km's on it ! Never a issue, Dan will absolutley work with you ! He as always treated me very good. Yes that is a strange break ??????