Crankshaft Remanufacturing

[faziljaved]

i am a little concerned about the reliability of the crankshaft after this process. do these cranks last as long as the original ones?

[bigbattenberg]

I am surprised they don't put it on a machine on which the crankshaft can be put off- center (like a grinding machine) so that the actual bearing surface to be sprayed runs centric... would save a lot of robot programming complexity, actually it could be reduced to a mechanised setup instead.

[origin197511]

Wow! An actual metal-putter-back-oner. I have needed on of those on occasion.

[Bobtheguitarist]

@origin197511  hehe , havent we all? :D

[benjoreddog]

@origin197511 welder...

[Spearfisher1970]

Thanks you for the video of the process. Very interesting.

[rohan4175]

position of parting line on 3cylinder maruty 800 crankshaft

[SpeedOfDark186Kmps]

This looks like a molycoat process. Am I right?

[retetikker]

cool

[vkorinfsky]

wtf? full circle crankshaft? I thought they stopped making them in the 70's after they learned they were a huge mistake.

[tabraizmoghul]

awesome

[jimicamaro]

What is the name of this method ? nitriding ( tufftriding ) ?

[its0a0me]

@jimicamaro~ No, Nitriding is when u impart Nitrogen molecules into the metals surface. Its a form of "surface hardening" or "case" hardening.  Its done in an enclosed pressure-chamber with just Nitrogen gas in it.

This is "thermal spraying". It shoots metal particles at high speed and temp at the recieving metal, and those little particles fuse to the metal. It 'builds up' the material.

[MyDRest]

hi , somebody here tell me please how this operation was programmed ? , i.e. is the lath machine integrated with the robot and robot is programed for x -axis traveling with some zero point ,and travel speed ,? or the robot have some kind of sensor enable it to learn the bath ? thx

[HunterCO1]

flame spraying has been around for years and is great for a stock engine. No way in hell I would ever put a flame sprayed crankshaft in a race motor.

[sayho1]

@HunterCO1 Mistake. As far as I know, porshe's racing engines have sprayed crankshafts. Fantastic tribological properties and controlled porosity of the coatings makes them self-lubricant. Very fast progress in thermal spraying is to be considered, it is not as it was even five years ago.

[HunterCO1]

@sayho1 you have no idea wtf your talking about I can asure you no car manufacturer on earth does that. It is as stated above to remanufacture a crankshaft.

[alejandro4812]

esto es otro pedo

[bestamerica]

wow long fire welding

[VirtRampage]

wow i never knew of this technology

[n00ber420]

awesome

[hyperutetic]

cool as hell

[Aterbil]

That's very impressive, very different from the conventional way of thermal coating.

[uploadJ]

Wow! Very impressive. 5/5

[Valtomotive]

flame hardening

[nedfunnell]

It's actually not hardening, it is thermal spraying. The robot is actually depositing metal onto the surface of the crankshaft- powdered metal is fed through the flame and is deposited onto the crankshaft surface. This builds up the part dimension so it can be remachined to original factory specifications.

[RedPolackMotors]

that's really cool never know that, awesome stuff

[boxdrinks]

what the hell? What is it doing?

[fatboy193]

hi mate ,,, what kind os coating is used there . do you know who much that machine cost).. thanks

[mithsi89]

really interesting, thx for posting

[goreziad]

cool. surprising that the pistons (when assembled) doesnt stroke in pairs of 2 but instead all 4 at different times.

[Triple88a]

actually most do, this is a new design that is called the crossplane crank. Here check this out, it will explain the reason better than i can.

watch?v=UvTXMtTTKQw

[goreziad]

cool, nice video.

[Seq83]

It looks like plasma spraying or HVOF(high velocity oxy fuel process) gun attached to plain industrial robotic arm.

Main point is to restore the worn shaft to original dimension by coating it with suitable material(hardness is important) and grinding it afterwards.

[jimmyhihat1]

Its not just heating fellas, its spraying a coating on the bearing journal, the heat is melting the metal powder.

[LeoBullterrier]

Why are they heating it.

[tmedhat]

is this one 4 harding the crankshaft?