powder coating chisel ground blades

[sevenedges]

Has anyone ever tried powder coating the non sharpened part of a chisel ground blade (like the back side of a CQC7?) for a longer lasting edge? I know this may sound crazy but I know a guy who does this to rotary mower blades used on a golf course and he says they never get dull this way. He never sharpens them. They are self sharpening. I know lawn mower blades are very soft on the RC scale, but wondering if this would work on knife blades as well.

 

[SIFU1A]

i dont follow how would that make them self sharpening??

 

[Cobalt]

i dont follow how would that make them self sharpening??

when he drives over curbs the blades skip off the cement, thus self sharpening themselves.:thumbup:

 

[Cobalt]

Has anyone ever tried powder coating the non sharpened part of a chisel ground blade (like the back side of a CQC7?) for a longer lasting edge? I know this may sound crazy but I know a guy who does this to rotary mower blades used on a golf course and he says they never get dull this way. He never sharpens them. They are self sharpening. I know lawn mower blades are very soft on the RC scale, but wondering if this would work on knife blades as well.

this is a fallacy. I have several coated chisel ground blades with the high Rc coatng n one side to the edge and they hold no better edge than a non coated blade. The chisel grind seems to stay sharper longer only because it is actually thinner than a V-grind.

 

[DaveH]

Sounds like the buckcoat system of years ago. Coat once side with super hard whatever, wear on the other sie keeps it sharp. SUpposedly.

 

[Cobalt]

Sounds like the buckcoat system of years ago. Coat once side with super hard whatever, wear on the other sie keeps it sharp. SUpposedly.

yes, I remember that coating. Timberline used it on the specwar or something similar to it. But a super thin coating won't hold up to cutting. And it is near impossible to get rid of a burr without stroping the other side thereby removing the coatng.

 

[naggalowmo]

I think its the fact that he's cutting grass is the reason the blades dont dull. I heard once that the easiest way to kill an edge is to not wipe it down whenever it gets wet. It rusts the edge away at a microscopic level. Therefore if the edge on those blades are coated they cant rust.

 

[sevenedges]

Nice responses, The only reason I even brought this up is because the guy who told me this is extremely accurate in the information he gives. And if he says something you can pretty well bet your last buck it's true. (30 years in the navy CWO4) and a great guy. Later