Weldable high density and good machinability
Weldable high density and good machinability
(OP)
I have trouble finding a material that fulfills my requirements list.
Density >8,8 g/cm³
Relative magnetic pearmability <1,02
Weldable to soft iron, using laser spot welding.
Machinability >70% compared to UNS C36000 (free-cutting brass)
Availible on rod Ø20 or bar 15x15 [mm]
Thankful for any help!
BR
Anders
Density >8,8 g/cm³
Relative magnetic pearmability <1,02
Weldable to soft iron, using laser spot welding.
Machinability >70% compared to UNS C36000 (free-cutting brass)
Availible on rod Ø20 or bar 15x15 [mm]
Thankful for any help!
BR
Anders





RE: Weldable high density and good machinability
RE: Weldable high density and good machinability
RE: Weldable high density and good machinability
RE: Weldable high density and good machinability
RE: Weldable high density and good machinability
RE: Weldable high density and good machinability
We have not tried pure copper because it is difficult. The laser pulse can be shaped to penetrate and give a proper melt of the copper but it's a too unsure solution to go through with.
The materials we've tried so far are:
Monel K500 - Ok welding but not machining
Inconell 600 - Ok welding but not machining
Brass - Not ok welding....
Beryllium copper, 0,5Be/1Ni/1Co/Cu bal. - The toxic issues are not fully investigated. Machining is pretty good, welding is a bit unsure.
85 Cu / 15 Ni - Ok for welding but machining is slightly too bad for us.
Too much zinc will make it impossible to weld with laser. It will more or less explode...
Thank you for all the answeres so far. I hope someon knows a solution that is usable.
BR
Anders
RE: Weldable high density and good machinability
The thing with brass is that the zink transforms to gas very fast because of the high energy pulse, it's like a small explosion.
RE: Weldable high density and good machinability
Yes, welding brass is pretty much impossible, was thinking you would solder it instead, but that "adds material". Welding copper is possible, but you really need to use OFHC copper; standard electrical-grade (electrolytic tough-pitch) copper has too much residual oxygen, and will result in very porous welds.
Would a composite construction work, e.g. having a tungsten core brazed into a machinable+weldable steel part, or pouring lead into a machinable+weldable part?