i know its probably a dim question but what thickness steel would be equivalent to 1mm titanium?
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i know its probably a dim question but what thickness steel would be equivalent to 1mm titanium?
all depends on the grade
1mm good grade steel is as strong as 1mm good grade titanium.
2 differences.
Steel is heavier.
1mm Ti weights as much as 0.6mm steel
Titanium is a lot more expensive.
Titanium is considerably tougher than steel.
Having worked in steel, on and off, for most of my working life (35 years) I can tell you that bending or shaping mid grade Ti is a bloody site harder than good mild steel of even twice the thickness.
Skink's flipper blade is 1.5mm Ti and took some effort to bend to shape.
Skink is now over five years old and despite hundereds of fights I have never had to re-shape the blade.
This would not be true if it were steel.
Mike.
I've resorted to using some 3.5mm plastic, no idea what it is but it shouldn't take that much damage and due to my bad design, I only had 200g spare. Will keep the same design, but have a new body shell after Kidderminster... Probably :lol:
anyone know of a place where i can get titanium sheet cut and delivered? looking for 2 sheets of 1.5mm grade 5 107mm by 520mm
Tjones Fabrications my sponsors might be able to help 01773607017
alex
Thanks, I'll give them a call on monday
We have some 1.2mm titanium if thats thick enough? not entirely sure on grade but I can check on monday. Can be cut to any size as I have a reasonable amount of it left.
Pm'd
currently using 5mm ali chequer plate, very poor grade as it bends when the robot lands on the unsupported corners. Am looking at 1.2mm grade 5 Ti as a replacement. Would the Ti be able to resist the bending if it had a 14-odd kg bot falling on its corner?
Easily. It'll bend, probably deform more than the Ali, but it'll bounce right back. Especially Grade5 stuff, it has a very high elasticity.
so, in other words, i won't have to fix it! sounds like the stuff i need!
Sounds 5mm HDPE would do better at those spots.Quote:
Originally Posted by Danjr1
that would be easier, and a lot cheaper! think i might give that a go and see how it gets on at maidstoneQuote:
Originally Posted by maddox10
you want grade 4, grade 5 cracks on edgesQuote:
Originally Posted by PJ-27
Interesting, I'm currently working with grade4 and it is super bendy, I just though 5 was more so.
After all the suggestions, I will try the HDPE but in 6mm form. My only worry is its spinner-proofability!
Lower the grade the tougher and easier to bend , Higher the grade the more brittle and easier to crack
I used 6mm HDPE on the sides/back of Cicatrix against Buzzbar at the UK Champs this year, it put a cut or two in it but didn't go right though and after the event it cost very little to make a replacement part.
The HDPE on the Hannibalito series of robots never got a breech. Slices, dents, lots of 'em, penetration, no.
Not even the bottom plate, what is only 5mm.