Why my carbon steel knife become dull so fast after cutting cloth?

Tunnan said:
Can cloth cuting dull knife?
Click to expand...
Yes of course if the cloth is very dirty with some abrasive material, eg cutting carpet can be hell on knife edges. Some synthetic cloths may also be abrasive or contain abrasive "filler" materials. Of course a poor edge on the knife will also have an effect on the longevity fo the edge assuming the HRC is adequate, ie HRC 55 and above.
 
FCCBCT said:
Yes of course if the cloth is very dirty with some abrasive material, eg cutting carpet can be hell on knife edges. Some synthetic cloths may also be abrasive or contain abrasive "filler" materials. Of course a poor edge on the knife will also have an effect on the longevity fo the edge assuming the HRC is adequate, ie HRC 55 and above.
Click to expand...
 
I would guess that the knife was sharpened to a fine wire edge that rolled over when you cut the cloth. Try stropping the blade.
 
Tunnan said:
My knife is polished edge
Click to expand...

You'll have better results if the edge is less polished. A slightly toothy edge is what you want for cloth.

Please explain what you mean by "carbon steel". A lot of folks use that term for any steel which does not rust. What alloy is the blade steel?
 
knarfeng said:
You'll have better results if the edge is less polished. A slightly toothy edge is what you want for cloth.

Please explain what you mean by "carbon steel". A lot of folks use that term for any steel which does not rust. What alloy is the blade steel?
Click to expand...
I Don't know. local blacksmith said that this is carbon stee.
 
You must log in or register to reply here.
Back
Top