did loads of copper manifolds for hvac guys 1 " branches on 3 inch headers left the branches long flattened the ends and fused the edges set them through close fitting holes set up a light purge then hit them with around 160 amps straight away and back off as needed...
i found that stellite on stellite same grade anyway wore out on an inter norton cam and ended up embeded in the piston skirt
a great combo is stellite and haynes ultimet , the latter is lots easier to use and does not crack like stellite if you want to add a wee bit more
i tried...
aluminium cable was tried for a while on a rig yard big fat stuff
after a few strands started breaking it used to overheat and inflate the covering then bang
the old weldcraft co axial gas cooled! stuff was good quality ,they would stand up to regular over amping ! when i started doing pipe we only had gas cooled union carbide gear with fixed bakelite type angled heads we would carefully cut around the bakelite so that the head could...
when hot metal hits cold it forms condensation which can get trapped between voids in the fit up this will turn to steam and gas out making your welds porous and on thicker sections can cause hydrogen cracking
now whats the boiling point of water
100c thats a good minimal temp...
]bracketry all fitted and nailed in position motor works a treat
just wiring and a couple of self reset fuses for the actuator it only needs a couple of dpdt momentary switches and wire now
good welding practice to preheat anything and give your welding helmet a pre heat too nothing like rooting a pipe and the glass fogs up halfway through the first rod
wont be trying that must have been seriously over cooking it very hard to flip im told
be happy just holding up cyclists
on backroads
the original owner had it flat out for 20 mins on the autobhan said it was absolutely planted
more progress today found an old golf cart motor so going to use it for moving the drive unit in or out
old whitworth socket was a press fit on shaft and fitted the square drive shaft wit a bit fiddling
will need limit switches either end and pick up some more holes on...
the grinnal being based on a bmw bike engine has no reverse gear which can be a bit frustrating.
i was given a caravan shifter that is a roller drive unit very low geared that drives the jockey wheel managed to get it in place and tacked . its bolted to the box section for easy...
had another study at the pin out and now i have the cv outputs hot
as you suggested pin 1 +2 does the buisness and sometime il dig out a 14 pin amphenol and incorporate a remote too