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  1. Replies
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    Or BU was out of stock and sourced their own...

    Or BU was out of stock and sourced their own steel from SB that also happens to sell their product?
    What did the mill certs say?

    Just curious here, Uddeholm mills (the original ones) are just...
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    Voest-Alpine is so large industrial behemoth that...

    Voest-Alpine is so large industrial behemoth that its not easy to figure out what they do and where but tool steel production(High Performance Metals Division) is mostly in europe (Sweden, Germany...
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    Isn't Uddeholm Swedish company? Now part of...

    Isn't Uddeholm Swedish company? Now part of Böhler-Uddeholm that is in turn part of Voest-Alpine.
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    Hard crome on soft core probably fails if the use...

    Hard crome on soft core probably fails if the use is any heavier.

    Spec for long nitriding to get enough deep case
    Longwear Surface Treatments nitriding technical data and cycle times
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    I found the "real horse" peak horsepower rating...

    I found the "real horse" peak horsepower rating interesting because I was wondering about it once. :D

    100kg human can output about 2kW or close to 3hp peak so 30hp peak from 1000kg Clydesdale...
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    Much true but there is no way around it that US...

    Much true but there is no way around it that US rail network is still at stone age(or diesel age..)
    We have population density 50% of the US and 1/50 total population but twice as much electrified...
  7. For anyone interested in the bearing type:...

    For anyone interested in the bearing type:
    https://www.ntnglobal.com/en/products/catalog/pdf/2300E_09.pdf
  8. Replies
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    Regerative braking is is nothing new in electric...

    Regerative braking is is nothing new in electric locomotives. Everywhere else except US and India :rolleyes5:

    Kiruna(Sweden) to Narvik(Norway) Iron ore line produces excess energy with...
  9. wow, that's something new to me also. :)

    wow, that's something new to me also. :)
  10. Replies
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    Just expensive. Conservative approximation...

    Just expensive.
    Conservative approximation would be that you would need 2 MWh battery designed for rapid charging. That would be 20x 100kWh batteries like Tesla is using.
    About 10 tons of...
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    Balance between cleaning and penetration is only...

    Balance between cleaning and penetration is only used with AC when welding aluminium alloys.

    Pulse settings have some effect on HAZ and penetration but its really for fine-tuning after you can...
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    Sounds to me that you pull the arc too long or...

    Sounds to me that you pull the arc too long or have the electrode set too far from the cup if fusion welds are ok but when you start playing around with filler it gets ugly. Spend few bottles of...
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    Don't know about US but around here multirib belt...

    Don't know about US but around here multirib belt pulleys are absurdly expensive. Especially so for the size used in automobiles (PK belt). Industry uses PJ and PL sizes but less PK size.
    ...
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    What grade of tungsten you use? And gray weld...

    What grade of tungsten you use?

    And gray weld sounds like you have bad gas, bad connections or you are just n00b with TIG. Super-duper easy to get gray welds if you just started welding...
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    AFAIK rotating part vibration would be at slip...

    AFAIK rotating part vibration would be at slip speed but magnetic (frame) vibration is at exactly line frequency or multiples of it ie 60hz, 120hz, or 180hz or.. .
    Some motors are worse than...
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    Before you start with besserwisser-mode at least...

    Before you start with besserwisser-mode at least get your facts straight. ;) 1000kV transmission lines are nothing new anymore. China has few thousand kilometers of 1000kV AC transmission lines.
    ...
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    https://i1.wp.com/www.graciecombativeskc.com/Renns...

    https://i1.wp.com/www.graciecombativeskc.com/RennsportKC/M96/38.JPG?zoom=2&resize=640%2C480
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    Long bolts and thinned bolts are nothing...

    Long bolts and thinned bolts are nothing unfamiliar for me but I don’t get the second threaded section between two necked bolt sections.

    Could be to center something with the bolt but weird...
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    Pretty sure, also shown on many other pics and...

    Pretty sure, also shown on many other pics and the rennsport thread I posted just earlier. Looks like bolts thread to the crackshaft carrier.
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    RennsportKC::Anatomy of an M96 Engine Rennsport...

    RennsportKC::Anatomy of an M96 Engine Rennsport Kansas City - RennsportKC::

    I think these pictures are from same engine model. Still can’t fiqure out how the bolts work.

    Crackshaft carrier...
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    No. And the pictures of the engine I found made...

    No. And the pictures of the engine I found made it just even harder to understand.

    Twonpart thread doesnt make sense unless there is nut coupling to the end..
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    OT: why 2-part thread on Porsche head bolts?

    270272

    https://www.9xx-parts.com/tuotekuvat/900x600/996-104-180-58.JPG

    How do these bolts work and why is the thread 2-part? Head-cylinder-crankcase clamped with one bolt? Why?
  23. I want also 6 feet inconel drops 🤣

    I want also 6 feet inconel drops 🤣
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    Oven/furnace like you showed in picture is...

    Oven/furnace like you showed in picture is probably not that well sealed and most probably wont hold 5lbs(PSI??) positive pressure inside. Maybe 5 Inch h2o would be possible positive pressure.
    ...
  25. Maybe less common for ”end user” products like...

    Maybe less common for ”end user” products like calipers but relatively common for lab standards.

    New gage block set is useless if it doesn’t come with calibration certificate with stated...
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