Welding Titanium

hey,

what are the recomended grade of Ti to weld to each other? e.g can grade 2 and grade 5 be welded together?

(Message edited by teamkenny on September 09, 2008)

grade 1-4 is okay to weld together, as there all none alloyed i think..

grade 5 and above is okay aswell to weld to eachother (they are alloyed)..

it is possible to weld 2 to 5 etc together though.

its somthing todo with some types of titanium being alpha and some being a beta type.

Kenny if you want ill pop down to my sponsors on friday before you come to the coopers and ask which are the best rods to use to weld them together and pick up a few while im there. I think its about £1 a rod.

Most titanium welds will become brittle and prone to cracking, especially on the higher alloys.

If you can, avoid welding. If you have to, lower grades will weld better.

kenny- your flipper arm is Gr2, get some grade 2 for the sides, im sure ive given u some before.. if not ill find some more for you lol,

Kanes right- titanium welds are brittle. Your arm is 10mm thick. id advise you drill and tap the side of it and bolt the brace on.

the welding is just some armour tags to bolt armour on to the robot via welding little sqaure tabs with a thread in to the base, the grade 5 is the base and the grade 2 is the 10mm Ti i got for them.

sorry to steal the thread but it is relevant to my question, what sort of grade would people suggest for titanium used in a claw for a crusher i need it to be lighter than what it is at the moment??

grade 2 with a tool steel tip

a tool stel tip to the claw? thanks

take the end of the claw off and shape abit of tool steel to the tip, but beware not doing it right will soften the tool steel and it will like mild steel then lol

so whats the difference between grade 1 and 2 or any other grades then?

http://www.roymech.co.uk/Useful_Tables/Matter/Titanium.htmlhttp://www.roymech.co.uk/Useful_Tabl.../Titanium.html

You can see here there are many grades of titanium. Their properties and uses are down to the other materials alloyed (mixed in with) the titanium.

As far as we are concerned with robots,

grade 2 - flexible and will bend on impact
grade 5 - Stronger but will tend to tear instead of bend

yup, i have used grade 1 and grade 4 before though, all of 360s chassis is grade 4. the strongest of the un alloyed titaniums. Good stuff if you can get your hands on it :)

what did you use the grade 1 stuff for?

an antweight scoop i made ages ago.. its pretty light. Not very strong either..

with titanium you take what you can get if you are on a budget but always be looking out for grades 2, 4 and 5. Most useful to us lot

new claw for my crusher pics below agian sorry for the link

all made from titanium

http://www.flickr.com/photos/27316623http://www.flickr.com/photos/27316623@N06/

http://www.flickr.com/photos/27316623http://www.flickr.com/photos/27316623@N06/

very nice (GULP) not


ps add the @N06/ as it thinks its a email

http://www.flickr.com/photos/27316623@N06/http://www.flickr.com/photos/27316623@N06/