Kubota 8 tonne dipper bush replacement

[v8druid]

Yes I did all that we are on the druid outer curve here then thats ok boyo ..we need a matalurgical chemist to give the answer (was my fave subject at skool) but Im still thick

Like I said it will " not burn like oxygenated steel will " just melts so you can't get it to blow and burn like steel does ..... aluminium is the same ... won't burn, just melts ..... no reaction with the introduced oxygen to make it burn and hence leave a clean(ish) severed cut

" Oxy-fuel cutting is a chemical reaction between pure oxygen and steel to form iron oxide. It can be described as rapid, controlled rusting. ... As the steel is oxidized and blown away to form a cavity, the preheat and oxygen stream are moved at constant speed to form a continuous cut. "

[Muz]

Like I said it will " not burn like oxygenated steel will " just melts so you can't get it to blow and burn like steel does ..... aluminium is the same ...

ha ... ok but ally melts away lower how comes it doesent flow (the bush metal) then when its molten ?

[Muz]

sorry if im pressing you master yoda metal guru

[Muz]

ok just re- read your earlier post ... clearly Im tired .....................

[v8druid]

ok just re- read your earlier post ... clearly Im tired .....................

LOL
if you didn't introduce the oxy stream to steel it would just sit in a molten pool like the other materials Muz
the Ali / whatever doesn't flow, as the meniscus on the melt pool retains it in position, unless there is a gap under it and it is forced to fall away, either by gravity if the melt pool is too big to be supported by the meniscus, or it is blown away by the introduction of pressurised oxy from the cut stream in the nozzle ...... which immediately causes the melt pool to cool in most materials, other than steel ..... which is oxidised and blown away by the pressure of the gas exiting the cut jet

[Mini machines]

When I changed the bushings on my Kubota u10 I welded 3-4 strings in the bushing and than it was easy to hit out with an hammer.

[Muz]

When I changed the bushings on my Kubota u10 I welded 3-4 strings in the bushing and than it was easy to hit out with an hammer.

Yeah... its a doddle if they are steel like that .. and only 25 mm across ID