Is this Bradley normal?

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dcycleman

Joined
Feb 16, 2009
Messages
1,649
Hey do your bradleys have a couple little pin head pits on the grind? sorry for the crappy pic not sure how to resize pan right.

p1090328.jpg
 
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Mine is a week old and it presents no pitting. Pitting is a form of steel corrosion. You need to keep that bad boy oiled. which reminds me, i should oil mine.
 
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I would contact Spyderco about your issue. I don't think this is usual. Looks like a defect with the steel, not a pitting (corrosion) issue.
 
its not corrosion pitting, I bought 2, both from same source, both hade the same type of small voids. I'm asking if any body else's are like this because if not, I'll send em' in. this is how both looked in box. one has been carried the other not.
 
Definitely contact Spyderco about this, could be nothing/normal or a problem with quality control, allow them the opportunity to see and make the judgment.
 
yeah, it kinda bums me out. I was waiting for this knife for like a year. My fiance got me one of them for xmas. the little defects in the blade bothered the crap out of me, so I bought another one hoping that it was just an anomaly, but the next one came with the same deal. I know it sounds crazy but I didnt want to go through the whole sending it in, and having them send it right back saying that it doesnt effect cutting performance or whatever. Also I didnt want to make the fiance feel bad about it. yeah I know flame on.
Any way, I figured I'd check with you guys to see if it was normal for cpm m4 to be like that. mabe it is a result of the powdering process, but I have cpm s30v blades with no such defects. :confused:
 
Definitely abnormal. Though it just seems to be a cosmetic defect, and I wouldn't worry about it. But if you're picky, send it in to Spyderco.
 
I've seen that on other knives when brand new. It's a little annoying but I think it's just a cosmetic issue. I wonder if Spyderco would replace that blade.
 
This is not a problem. Many modern knives are made using Powder Metal Technology, in short this means a "form of high tech cast steel blades". Any form of cast metal has the potential for tiny voids (bubbles ) in the steel matrix and can be brittle too. Modern casting techniques allow for extremely close tolerances which translates into less costly finishing and assembly (fewer skilled workers needed). This is something we will have to live with as long as consumers demand low prices.
 
I would agree its mostly a cosmetic issue except for the fact that corrosion starts in pits like that. again if you keep it oiled not really gonna affect it but I;m just sayin
 
metlman1 said:
This is not a problem. Many modern knives are made using Powder Metal Technology, in short this means a "form of high tech cast steel blades". Any form of cast metal has the potential for tiny voids (bubbles ) in the steel matrix and can be brittle too. Modern casting techniques allow for extremely close tolerances which translates into less costly finishing and assembly (fewer skilled workers needed). This is something we will have to live with as long as consumers demand low prices.
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yeah, my old man is a mechanical engineer, he told me the actual term was "sintering". He said that it made sense for the occasional void, and if they pressurised the steel enough to get rid of all of them,it would like triple the cost.
 
M4 has 4 percent chrome and vanadium, it has over 5 percent moly and tungsten. All of these alloys make the steel red hard and difficult to forge even with the powder process. I would guess that you have inclusion pits in the steel from the process...Take Care...Ed
 
I would have thought, having read the materials posted on Crucible's website discussing the benefits of their CPM process, that these kind of voids would not occur. I'd contact Spyderco. Let us know what you hear?


metlman1 said:
This is not a problem. Many modern knives are made using Powder Metal Technology, in short this means a "form of high tech cast steel blades". Any form of cast metal has the potential for tiny voids (bubbles ) in the steel matrix and can be brittle too. Modern casting techniques allow for extremely close tolerances which translates into less costly finishing and assembly (fewer skilled workers needed). This is something we will have to live with as long as consumers demand low prices.
Click to expand...

Ed Schempp said:
M4 has 4 percent chrome and vanadium, it has over 5 percent moly and tungsten. All of these alloys make the steel red hard and difficult to forge even with the powder process. I would guess that you have inclusion pits in the steel from the process...Take Care...Ed
Click to expand...
 
well, I am sure it is what Mr. Schemp has said. thanks for the expertise by the way. The only question is wether spyderco would view these inclusions as a defect or within their specifications.
 
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