Fallkniven experimenting with INFI???

[ThunderUnderKilt]

Busse, Swamp Rat, and Scrap Yard are all made in Wauseon.

According to the following link, Scrap Yard Knives seem to be made in Spring, Texas https://shop.scrapyardknives.com/
by his brother Dan.

The original intent of posting the link to the review was the comparison between INFI and a Fallkniven F1, in response to Xanax's request to see a comparison between INFI and a Fallkniven knife.

As a Busse piglet, I was happy to see how well the INFI knife did compared to the F1, but I was surprised to see that the edge rolled during testing. I too wonder, as others have suggested, if the heat treat may be different in the SS4 since it is a scrapper, and not a Busse Combat knife. In the end, the SS4 in INFI fared better than the F1, but didn't seem to hold up as well as the SRKW Howler for the given edge profile.

As far as the rolling goes. My impression is that since the roll occurred on the cutting edge, and all the knives had the same edge profile, that the test was independent of the remainder to the blade geometry. But I'm open to enlightenment to the contrary.

 

[asi]

I didn't even noticed that that fellow chopped the bones with F1.
only with swamp rat and scrapyard knives.

To my mind the INFI on Scrapper 4 should be the same as the INFI on Busse combat knives. BACAUSE it is INFI. INFI not only the steel but the Heat treatment as well.

during my tests with Scrapper 4 I reprofiled it also to 20 degrees (but I did a smaaaaaal convex also) I didn't noticed edge damage during bone chipping.

 

[ThunderUnderKilt]

I didn't even noticed that that fellow chopped the bones with F1.
only with swamp rat and scrapyard knives.

I agree. From the review, it appears that he didn't even try chopping the bones with the F1. +1 for the Howler and SS4.

 

[leatherman]

According to the following link, Scrap Yard Knives seem to be made in Spring, Texas https://shop.scrapyardknives.com/
by his brother Dan.

The original intent of posting the link to the review was the comparison between INFI and a Fallkniven F1, in response to Xanax's request to see a comparison between INFI and a Fallkniven knife.

As a Busse piglet, I was happy to see how well the INFI knife did compared to the F1, but I was surprised to see that the edge rolled during testing. I too wonder, as others have suggested, if the heat treat may be different in the SS4 since it is a scrapper, and not a Busse Combat knife. In the end, the SS4 in INFI fared better than the F1, but didn't seem to hold up as well as the SRKW Howler for the given edge profile.

As far as the rolling goes. My impression is that since the roll occurred on the cutting edge, and all the knives had the same edge profile, that the test was independent of the remainder to the blade geometry. But I'm open to enlightenment to the contrary.

It would seem so by the intro huh? but trust me. I dont think its a big secret, but it is a lot of fun watching all the speculation on the Scrap Yard forum. Its looking like they've come up with the same conclusion for the most part.

 

[roughedges]

Both the Howler and the SS4 were used to chop bones, but only the SS4 showed rolling. Is there something about the howler geometry that supports the 20 edge profile that the SS4 doesn't have? I'm not trolling here. Just curious

Appologies for steering the thread off topic.

The Howler has a wider blade so, even though they were both sharpened at 20 degrees per side, the Howler would most likely have a thicker cross section at the bevel then the SS4. With exact blade thickness and width measurements this could be easily verified. Well, maybe not easy, but it could be done!


For easy, mic it!

 

[yoda4561]

Not sure whether this really applies, but my SS4 also seems to have a tendency to roll easily. After seeing this thread I figured I'd do a little impromptu test. I lightly "chopped" into the corner of an iron/steel whatever it is dumbell, and the edge rolled noticably. I then poked it with the tip to see what would happen, and about .5mm of the tip rolled over. I repeated this with an ATS-34 benchmade 710, with an edge as thin or thinner than the ss4's with no visible damage, the tip felt slightly less pointy and if you look "very" close you can see some microchipping in the edge, but the damage was much less than with the ss4. I wonder if perhaps these were tempered a bit too long or something and wound up a few rc points lower than they should have, as neither my FBM or my thinned out NO-E show any damage.

 

[Cobalt]

I tested INFI on the below pic and it got so hard I cut diamond with it

 

[yoda4561]

Looks to me like my problem was decarb at the edge somehow, after sharpening all the damage out its performing where I expected it to.

 

[leatherman]

I've seen this same senario several times, I think you stumbled on to the secret . People rolling or chipping the edge on a new knife then sharpening it out and the new edge is much more resistant. My Leaner Meaner had the same issues.