LK Chen Song Hand Dao Review and Destruction

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  • เผยแพร่เมื่อ 1 ธ.ค. 2024

ความคิดเห็น • 92

  • @JuardianK
    @JuardianK 3 ปีที่แล้ว +26

    It's cases like this where the testing you do provides extremely important information that would otherwise not be known. Other sword reviewers would just note the cutting properties and probably rate it highly, but your testing discovered a serious flaw which can now be considered and potentially fixed. Great content.

  • @Phil.Martin
    @Phil.Martin 3 ปีที่แล้ว +18

    Quality content here, Matthew! This is what make your testing so important. I have always understood that welding the guard makes that point prone to breaking and have seen a number of examples where it happened with European sword reproductions. Some other way of securing that guard needs to be found. I completely agree that this type of construction and the potential for dangerous breakage is not acceptable. Looking forward to seeing how they fix this issue.

    • @possumsam2189
      @possumsam2189 3 ปีที่แล้ว +2

      LK Chen could always go back to traditional glue/bonding agents.
      While it may make it less rigid and the guard more shaky/loose but it would yield a better result.
      It is probably the combination of the design of the blade, the hardness of the chosen steel and the welding of the guard to the tang itself.
      The welding has probably caused the embrittlement in that particular area of the sword and is something LK have to rectify immediately.
      Some of the artifact swords LK used for reference also had Iron Tunkous, which locked the guard in-place and improved the overall structural integrity of the sword.
      While that may drive up the price due to the increased cost, it would be a more feasible and aesthetically-pleasing fix.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +3

      Thank you sir. LK Chen has some general good will from the sword community. At least based on the comments I see. I would like to see the next version too, hoping they can make a few changes because this sword feels like a good one, it just needs to act like it.

  • @ormanerik
    @ormanerik 3 ปีที่แล้ว +17

    That was fast, didn't even make it to the croquet stick of doom..😬 seems like #2 snapped a bit quicker than the first..I'm a welder by trade and you were right about the tac welds..it is possible for two small Welds like that to heat up the tang enough to weaken the steel.. chances are they have their heat turned up too high due to the hardened steel and it most likely barbecued it...no bueno.. thanks for the video Matt you rock🤘

  • @JoeSteel1
    @JoeSteel1 3 ปีที่แล้ว +5

    your honesty is appreciated and commendable as always Matt....very well done!!!

  • @hunterwolfe6295
    @hunterwolfe6295 3 ปีที่แล้ว +3

    so close to being a killer piece. excited to see version 2

  • @FortuneFavoursTheBold
    @FortuneFavoursTheBold 3 ปีที่แล้ว +5

    Thanks for the awesome review and risking your life and health to test the sword. Probably would be worthwhile to wear arm protections as well when you put on maille chausses. It's easier for the blade to bounce back into the hand and arm than into the legs (well you stroke the brick the first time it broke). Two swords of the same model breaking at the exact same spot indicates a design flaw. I have seen an old Valiant Armoury sword with a Chinese made blade breaking in the same way at the same spot and they use tack welding as well. So probably LK Chen should revise the hilt construction.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว

      I have grown too fat for most of the stuff I have, I'll find something eventually.

    • @KF1
      @KF1 8 หลายเดือนก่อน

      Yeah 19:59 those are the spot welds I was referring to last stream. That's likely the primary factor for the break in both cases, tho I can see how square shoulders could have an effect on a thinner tang. For something with a tang of equal thickness to a katana, the square shoulders have never been a problem in my experience, only on thinner tangs do I consider it a concern.
      The second break, at 23:50 shows the welding more clearly. I'm glad this came to light and the manufacurer given the heads up

  • @ALPHARIUS8035
    @ALPHARIUS8035 ปีที่แล้ว +2

    Dear sword friends. I posit the idea that maybe the catastrophic failure has less to do with the blade material and is more a matter of the guard. Ive been a student of muso jikiden eishin Ryu for over twenty years, i have observed that the area around the tsuba is the weakest part of the sword - when either the tsuba is made of a material in a similar hardness to the blade or is fitted too tightly. The reason being that shock tends to reverberate down the blade. Obviously this is going to happen by degrees based on the resistance that the target offers. If the guard is too tight or too hard, the kinetic energy tends to be redirected into the side of the blade as the guard prevents the normal shock wave traversing the full length of the tang. So rather than the shock travelling down the blade and through the tang, the shock will travel down the blade and then being unable to dispel the energy through the tang, the blade is prevented from flexing properly by the restraint of the guard. Thus catastrophic breakage. This might be mitigated by using brass for the guard. Also a mild fuller or slight ridge down the back of the tang may also help. I hope this was of value to some one. Thank you for your time.

  • @thescholar-general5975
    @thescholar-general5975 3 ปีที่แล้ว +1

    Great video! This really highlights the value of what you do!

  • @dlatrexswords
    @dlatrexswords 3 ปีที่แล้ว +2

    Thanks for your consistency Matt, and your candor in the reviews. A shame this dao is having this production/design issue, but I really hope this data you provide can help their team improve future runs!

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +2

      I have heard from their team and I get the impression they take it very seriously. If I were a gamboling man, I would guess they will find a solution and make it right.

  • @dogememer4780
    @dogememer4780 3 ปีที่แล้ว +1

    Hi Matt, I only came across you content recently and I have to say I have been trying my best to catch up on your 5years + of posting content. Really enjoy your reviews and insight and very much expert opinion. I have only two functional swords, Gen2 Chaos Fantasy Sword and a Last Lengend 8k Dragon Katana. Thanks to your review(s) I ordered a custom Katana from Ryansword, with a better idea of what to expect from them. Thanks again and i look forward to your future sword reviews.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว

      Thank you for the kind words. Glad you enjoy.

  • @SifuKuttel
    @SifuKuttel 3 ปีที่แล้ว +5

    Oh man, what a bummer! There are so many aspects I really like about the sword from the grip to moving weight, it's really a shame to see the consistent breakage. I would think that already having the blade cut to hold the collar (habaki?) and guard by tension would be enough to not need the welds, unless they are trying to avoid rattling, in which case they've created a bigger problem than solution. I'm interested to see the outcome, thanks for the great video!

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +2

      I use you as a reference for how this moves in more capable hands. It has a lot of charms and it is sad that there is a flaw. LK Chen has a lot of good will out there and I would bet on them finding the issue and resolving it.

    • @Glad-y3q
      @Glad-y3q ปีที่แล้ว

      @@Matthew_Jensen thank you for this great video. I wonder now how when and how could be sure that problem had been solved...

    • @Matthew_Jensen
      @Matthew_Jensen  ปีที่แล้ว +1

      @@Glad-y3q LK Chen made some notes about it. I believe they stopped welding on the guard and revised the way the heat treatment was done. You would have to ask them about the changes to be sure. I am always happy to test another one if they want to send it.

  • @jarodmasci3445
    @jarodmasci3445 ปีที่แล้ว +1

    As a potential update: I purchased this Dao from KoA a couple of months ago. Hard to say for sure, but it seems LK Chen may have taken Matt's review seriously. Mine is straight and hasn't taken a set at all after moderate abusive testing. I've even tried whacking the spine and the flat against hard objects.....no damage, no bend. The earlier version....there's no way that should have bent so easily. I'm thinking they properly adjusted their hardening processes. And hopefully stopped spot welding the guard. So far, so good

    • @Matthew_Jensen
      @Matthew_Jensen  ปีที่แล้ว

      Thanks for the update! Much appreciated. LK Chen seems like a company that would take this issue seriously. I am glad to hear new versions have been improved.

  • @cleric670
    @cleric670 3 ปีที่แล้ว +7

    Pretty sure you nailed it when you said "I found some little welds here", more than likely they did tack weld the tsuba into place but then QUENCHED IT TO COOL IT QUICKLY (which makes extremely hard but brittle steel) so it could be wrapped. I'm betting if you use your rockwell tester right at the blade metal at the tsuba it's probably significantly harder, 75+ is my guess. Cut off the cord on the handle and rockwell test it right at the tsuba since the welds appear to be wrapped on the handle side.

  • @erichusayn
    @erichusayn 3 ปีที่แล้ว +1

    Been waiting for this one from you. I'll let ya know my thoughts when I'm done watching...

    • @erichusayn
      @erichusayn 3 ปีที่แล้ว

      Oof. Definitely seems soft to bend so easily. I think the failure on the noodles could be a combination of bad noodles and lack of stability. Can rig up a noodle stand out of an old snow shovel handle and that should yield better results. Was intrigued by the geometry and whatnot, but after seeing this, I think I'm gonna wait on this one.

    • @erichusayn
      @erichusayn 3 ปีที่แล้ว

      That mad max armor get up is cool.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว

      it was a bit snug.. I could use a better armor setup for these things.

    • @erichusayn
      @erichusayn 3 ปีที่แล้ว

      @@Matthew_Jensen I'm sure you could cobble something better fairly easily.

  • @jasonmiller5483
    @jasonmiller5483 3 ปีที่แล้ว +2

    Grain looked rough, and any added heat even wielding will change the temper at the base of the blade. I feel it had its temper marred and perhaps the heat was too high or low in places. Glad they cared enough to send a 2nd piece for testing, lets see them make it right.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +1

      Yes, glad they sent me a second. It helps validate the issue but also leaves some open questions. Hope they take some steps to sort it out soon.

  • @KF1
    @KF1 3 ปีที่แล้ว

    9:01 awesome camerawork. That looks amazing with the fog

  • @ABEAZYdaRonin94
    @ABEAZYdaRonin94 3 ปีที่แล้ว +5

    Good review Matt! You've been doing this kind of thing for a long time so I'm sure you already know, but that hodge-podge armor is missing one crucial thing...GROIN PRETECTION for God's sake man! I mean you already have kids, so I guess it's not a concern if your not trying to have more lol.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +2

      Maybe I have a jockstrap on, maybe my groin can protect itself, maybe it was a DIY vasectomy to reduce medical expenses, maybe its Maybelline.. Maybe you are right.

    • @ABEAZYdaRonin94
      @ABEAZYdaRonin94 3 ปีที่แล้ว

      @@Matthew_Jensen That's a lot of maybes lol. DIY vasectomy 🤣🤣

  • @EsotericAwakenings
    @EsotericAwakenings ปีที่แล้ว +1

    Do you feel that the current through tempered manganese spring steel version of this sword would correct this issue with the sword breaking at the hilt?

  • @jaysblades
    @jaysblades 3 ปีที่แล้ว

    Great video sir! Glad you avoided an "HSN incident," though that's the closest I've seen someone come to it in a good while! 😂

  • @simonfox9452
    @simonfox9452 ปีที่แล้ว

    Thanks for the video
    I was about to order if as my first lk sword
    But not now

  • @hunterwolfe6295
    @hunterwolfe6295 3 ปีที่แล้ว

    dude the protective suit for round 2 needs to stay for future testing. very cool

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว

      LOL, not sure I agree but it beats getting cut..

  • @mikeboone4425
    @mikeboone4425 3 ปีที่แล้ว +1

    In all serious young man invest in some chainsaw pants we don't want any delays in your next review. Happy Trails

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +2

      I should get something.. Just looked at chainsaw pants. They are expensive.

    • @mikeboone4425
      @mikeboone4425 3 ปีที่แล้ว +1

      @@Matthew_Jensen Yes they are for sure back in the 70 a friend of mined son was out on his property felling trees as he had done since he was a kid old enough to hold a saw he was 27 when he got bit by the saw he was able to crawl about 60 feet before he bled to death . back in those days people were wearing leather chaps his were in the truck . I have found over the years 3 pair of good chaps at the local Good Will just luck . The only problem with most chaps there's no groin protection so I took an old leather weight lifting belt and sowed it over the groin . your choice. Happy trails

  • @sabergoli3518
    @sabergoli3518 2 ปีที่แล้ว

    lk is an amazing company

  • @HowHingPau
    @HowHingPau 3 ปีที่แล้ว +2

    You should get a leather blacksmith's apron to protect your groin area.

    • @LangstonDev
      @LangstonDev 3 ปีที่แล้ว +1

      I was thinking blacksmith's apron as well. Don't need something strong enough to deflect a purposeful thrust, just enough to keep from getting a cut if a broken blade bounces back on you...

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว

      That might be a good option. Need to find one on the cheep.

  • @JCOwens-zq6fd
    @JCOwens-zq6fd 3 ปีที่แล้ว

    Sometimes if the shoulder that sits on top of the gaurd is too squared off at right angles instead of being rounded it will cause it to break right at the hilt.

  • @chrisfields8077
    @chrisfields8077 3 ปีที่แล้ว +1

    Yeah if they are spot welding those areas, it would create very weak spots in those areas if the tac weld wasn't annealed out. A weld alone will create very hard spots and very soft spots right next to each other and can cause easy cracking.

  • @edged_mindset
    @edged_mindset 2 ปีที่แล้ว

    I love what they are doing and I think it's really needed, but man, they seem to be priced way high for the quality that you actually get. They seem to be on par fit/finish wise to all the much cheaper Chinese options but they do offer the near 1:1 replica/balance advantage.

  • @samuraibyrd
    @samuraibyrd 3 ปีที่แล้ว

    Those HRC files are pretty cool. I need some,lol

  • @Viktor_Johansson
    @Viktor_Johansson 3 ปีที่แล้ว

    It's a good steel, the edge was very durable. It bent easy but its normal when most of the cross section is not hardened. If they have spot welded the guard to the tang that is probably the issue. When welding high carbon steel you have to anneal it completely or the section gets brittle. Annealing means you have to heat it so much that you ruin the hardness of the edge. So they should just stop welding the guard (if that is what they do) and I think that resolves this issue.

  • @davidmoreau2703
    @davidmoreau2703 3 ปีที่แล้ว

    Hello Matthew, could you do a test destruction on katana, Yomikini Swords.
    Cordialy.
    David.

  • @philliproop9910
    @philliproop9910 3 ปีที่แล้ว

    Hey Matt, I wanting to buy a sword. It will be my first. I want good quality and strength. I want to spend about 600 or 700 dollars. What can I get and which company should I use.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +1

      What kind of sword? My advice would be to get one second hand, your money goes a lot further.

    • @philliproop9910
      @philliproop9910 3 ปีที่แล้ว

      Katana. I will look around first. Thanks Matt, I like your videos.

  • @alexxu3004
    @alexxu3004 2 ปีที่แล้ว

    It seems to me the weld is the cause, welds are more brittle and ruins local heat treatment, once a crack formed at the weld it become a severe stress concentration point and crack right through

  • @panoctic
    @panoctic 3 ปีที่แล้ว

    i think that chainmail should be a little more up or you could wear some kind of heavy duty appron to cover up that section of your legs to shield the femoral artery, glad you are ok.

  • @ralizek497
    @ralizek497 3 ปีที่แล้ว

    Seems like the tac wielding on the spine and blade are forcing a weak point, like the wields are absorbing all the shock. They altered the tempering at both the hardest and softest points, they might as well just cut into it with a grinder and sent it to you. A single tac on one side, in the middle ok if it’s absolutely necessary. There’s a reason why other companies use a bonding agent and not wields.
    As goofy as that mix and match armor was, please consider doing all destructive test with it on. As soon as the first one snapped my heart stopped, one step forward or if you lost your balance…. Please be careful.

  • @ABEAZYdaRonin94
    @ABEAZYdaRonin94 3 ปีที่แล้ว

    Yeah it seems that with the way the sword is designed, the shock is being absorbed in the wrong place. I'm not talking about the historical aspect, but more so the way the company designed that particular model.

    • @possumsam2189
      @possumsam2189 3 ปีที่แล้ว +1

      It is more of how they welded the guard to the sword itself.
      The resultant embrittlement from the welding became the point-of-failure for this sword.

    • @ABEAZYdaRonin94
      @ABEAZYdaRonin94 3 ปีที่แล้ว

      @@possumsam2189 Oh must've missed that. Yeah that's never a good idea to rapidly reheat steel after the heat treat/tempering process.

  • @WhatIfBrigade
    @WhatIfBrigade 3 ปีที่แล้ว

    I was a little worried about you chopping thick branches wearing sandals. A blade could easily break on a thick piece of wood and hit your foot.

  • @JoeSteel1
    @JoeSteel1 3 ปีที่แล้ว

    Great video and review as usual Matt, I just can't love Lk chen, in general I just think there prices don't warrant the product, I'm going to try another manufacturer of Dao at a cheaper rate to see if quality exists in a cheaper price range

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +6

      The impression I get is that there is a premium paid for some of the design characteristics mirroring or closely resembling historical pieces. I am guessing there are other folks that make good swords but one thing LK Chen has consistently done, is make fine feeling swords. I have yet to handle one that feels like it was an overbuilt chunk. This one may have missed the mark in durability but once that is resolved, I think there is a fine sword waiting at the end. In contrast some of the other dao, especially the big chopper variety tend to be rather cumbersome in the hand. I appreciate the feedback!

  • @erichusayn
    @erichusayn 3 ปีที่แล้ว +2

    Well, I may as well watch it again. Really get my $.99 worth. Lol.

    • @samuelschulman7175
      @samuelschulman7175 3 ปีที่แล้ว +2

      Thanks for the reminder, I'm going to join the Channel now.

    • @erichusayn
      @erichusayn 3 ปีที่แล้ว +2

      @@samuelschulman7175 worth the 99 cents for sure.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +3

      Nicest thing anyone has ever said about me!

    • @erichusayn
      @erichusayn 3 ปีที่แล้ว +1

      @@Matthew_Jensen hahahaha. Welcome dude.

  • @josephdif
    @josephdif 3 ปีที่แล้ว

    Well this is a bit upsetting, I ordered the Song Hand Dao a few weeks ago.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว +1

      I would recommend you contact them and give them a chance to remedy your concern. Sometimes shit happens but LK Chen seems to want to make both good swords and happy customers. Share how it works out if you are comfortable doing so.

    • @josephdif
      @josephdif 3 ปีที่แล้ว

      @@Matthew_Jensen it arrived on 10-27. I’m contacting LK Chen to see what cutting targets he recommends first.

  • @MtRevDr
    @MtRevDr 3 ปีที่แล้ว

    It was a brave move to have completely wooden scabbard for Chinese swords. Philippines and Japan have completely wooden scabbard for their swords.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว

      Why brave?

    • @MtRevDr
      @MtRevDr 3 ปีที่แล้ว

      @@Matthew_Jensen - The majority of users and self-proclaimed historians are just followers. They try very very hard to follow popular trend and claim themselves to be authorities and authentic experts, well studied, handled 1000s. Lots of Chinese scabbards seen have metallic furniture such as end cap and hanging parts rings. Hardly any Chinese sword from China was ever shown to have just a plain wooden scabbard like what Philippines do. So, it is bravery to make the first claim that Chinese swords in the past had lots of plain wooden scabbard. And of course, with all the antique wooden scabbards perished, one has to invent some rim and end details. I personally welcome this move. I use Pilipino and Japanese swords and have plain wooden scabbards for both.

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว

      Thank you for the answer.

    • @MtRevDr
      @MtRevDr 3 ปีที่แล้ว

      @@Matthew_Jensen - Thank you.

  • @blades8284
    @blades8284 3 ปีที่แล้ว +1

    Please don't bleed out in the yard...lol. Too bad LK still has this up for sale.

    • @alexanderren1097
      @alexanderren1097 3 ปีที่แล้ว

      From what I've seen, LK Chen seems pretty open to constructive criticism. If he's still selling this model I would expect he's fixed at least some of the design and QA/QC issues

  • @Sareth94
    @Sareth94 3 ปีที่แล้ว +2

    yeeeah, welds are terrible on that kind of high carbon, hardened metal.
    Absolute no-go.
    these spot welds basically act like extremely brittle quenches on both sides of the tang.
    A lot of heat, in a small space where the heat immediatly gets siphoned away by the other surrounding metal.
    It leaves a heat-affected zone next to the weld that is extremely brittle (which is very much where both of yours broke).
    Once the crack starts there's just no holding it.

  • @outlawsamurai47
    @outlawsamurai47 3 ปีที่แล้ว

    The reason the sword bent was because differential hardened blades require more skill in the edge alignment that's why monno hardened blades are given to beginners who don't know what there doing not yo say you don't I watch a tone of your vids I'm just saying that is most likely why it bent poor edge alignment and soft steel but good cuts brother

  • @GreaterAfghanistanMovement
    @GreaterAfghanistanMovement 22 วันที่ผ่านมา

    Its like a broken machete

  • @anthonyprevost3968
    @anthonyprevost3968 3 ปีที่แล้ว

    How do you get your wife to let you get so many swords?? Hell I’m having trouble getting my wife to let me get my hands on even one let alone a multitude XD

    • @Matthew_Jensen
      @Matthew_Jensen  3 ปีที่แล้ว

      Stop playing world of warcarft.. That help.

    • @notanotherswordreviewchann4901
      @notanotherswordreviewchann4901 3 ปีที่แล้ว

      And tell your wife, "bitch, I'm gettin a sword!" And you just buy it one. Does she ask you about what she can buy? Please. Grow a pair and buy some swords...

  • @notanotherswordreviewchann4901
    @notanotherswordreviewchann4901 3 ปีที่แล้ว

    Looks like a couple cheap parts put together for a sword. I don't know if those prices justify the historic ness of buying one. Others offer far more for those prices. Eh, I quit buying from China anywho...