Comment on Toyota Will Adopt Tesla-Style Cast Bodies That Might Be Impossible to Fix

Usernameblankface@lemmy.world ⁨1⁩ ⁨year⁩ ago

• w2qw@aussie.zone ⁨1⁩ ⁨year⁩ ago

  I think point is without the cast body section you could just replace broken parts which may be significantly less. In practice though I don’t think it matters that much. Small accidents hopefully don’t damage the frame and if they do it’s often a bit dubious repairing it.

  source

  • Usernameblankface@lemmy.world ⁨1⁩ ⁨year⁩ ago

    Yeah, I think once you get to the point where the car needs the frame worked on, it’s probably going to get scrapped whether it has a cast frame or not.

    source

    • shadow@lemmy.sdf.org ⁨1⁩ ⁨year⁩ ago

      Except for trucks

      source

      • Usernameblankface@lemmy.world ⁨1⁩ ⁨year⁩ ago

        Hmm, yes. Some trucks with broken or bent frames get patched up and driven.

        source

        • -> View More Comments
      • bemenaker@lemmy.world ⁨1⁩ ⁨year⁩ ago

        This is for cars and small SUVs. The trucks still have frames. The cars and small SUVs are already unibodies. Just not multi-segmented unibodies. The two differences are that its multi-segmented, and the metal is cast, instead of forged in a stamping press.

        source
    • A_Random_Idiot@lemmy.world ⁨1⁩ ⁨year⁩ ago

      people have repaired frames for a long time.

      source
    • epyon22@sh.itjust.works ⁨1⁩ ⁨year⁩ ago

      What this seems like is it would replace things that are normally spot welded or glued together, things I can think off the top of my head that are like this are the front radiator support and strut towers in various cars. When these items are bent or rusted you can usually buy these peices. See skyline r34 strut tower rust issues. On this new proposed design your options would be to replace the whole front or rear third of your car, or precision cutting and welding a piece in, which may be inaccessable because of the casting design.

      source

      • Thetimefarm@lemm.ee ⁨1⁩ ⁨year⁩ ago

        Welding a casting is a lot more dubious even if you can access it easily. If the original material was welded together chances are it can be rewelded without much issue. Most successfull welds in cast material I’ve seen have been in compression, it tends to split around the weld when you put it under tension.

        source
      • Usernameblankface@lemmy.world ⁨1⁩ ⁨year⁩ ago

        Now there I can see how this design might make more problems than it solves. Bending the mounts of different parts might total the car.

        source
• ColeSloth@discuss.tchncs.de ⁨1⁩ ⁨year⁩ ago

  The problem is that you’d have to pretty much disassemble half the vehicle to replace a cast part, and that will be thousands extra in labor.

  source

  • Usernameblankface@lemmy.world ⁨1⁩ ⁨year⁩ ago

    Considering that the cast part is practically half the vehicle, I wonder if it is easier to change out the cast vs several frame parts.

    source

    • ColeSloth@discuss.tchncs.de ⁨1⁩ ⁨year⁩ ago

      The frame is a much smaller portion of the vehicle than these cast parts.

      Once a frame is damaged the vehicle often gets totalled out because it would be so much to replace, basically disassemble the vehicle or try to repair the frame and have poor safety risks from then on.

      These casts are a lot more than where a frame is. Damage to the casts will happen from accidents that never would have damaged a normal frame.

      source

      • bemenaker@lemmy.world ⁨1⁩ ⁨year⁩ ago

        Not on a unibody.

        source
    • epyon22@sh.itjust.works ⁨1⁩ ⁨year⁩ ago

      My guess is increase part cost but reduce repair labor. Similar to replacing transmission or engine today. Not worth it for a shop to usually do the repairs them selves but replace the whole unit and send off to a remanufacturing plant

      source