which material is harder ,hss tool or metal file ?

[far_cry]

as the title say's which is harder and give me more cutting before it start's to wear .

i want to use this for head cutter

[inonickname]

Do you mean a facemill?

HSS is made for high speed and higher temperature applications. Better than a file at least.

Ideally carbide or PCBN is a much better choice

[far_cry]

Do you mean a facemill?

HSS is made for high speed and higher temperature applications. Better than a file at least.

Ideally carbide or PCBN is a much better choice

Head cutter for rifling machine ,so there little amount of heat
I know that carbide is the better one but because the small cutter and the diffecalitty of sharpinig it .

So can metal file give me less wear than hss because of the low heat and the little force on the cutter.

[inonickname]

Nope, HSS properly hardened will do a better job.

[Heimo]

The way I have it, HSS has more tensile strength then the tool steel(file) but is not entirely as hard as tool steel, but tool steel breaks more easily thus it comes down to application to which is better.

but in this case I will agree with the above properly hardened HSS will do the job just fine

[inonickname]

The way I have it, HSS has more tensile strength then the tool steel(file) but is not entirely as hard as tool steel, but tool steel breaks more easily thus it comes down to application to which is better.

but in this case I will agree with the above properly hardened HSS will do the job just fine

High speed steel is a variety of tool steel and can be hardened to the same extent as other tool steels.

[jakethebeast]

yep, but the high carbon content of a file (about 1.5%) and the purioty of the steel means that when heat treated right, it will give you at least as good results as modern HSS

EDIT: if you want, we can make a some sort deal from one made from bohler k510, i have "honed" the heat treating process from it to make it ultra strong

[inonickname]

yep, but the high carbon content of a file (about 1.5%) and the purioty of the steel means that when heat treated right, it will give you at least as good results as modern HSS

EDIT: if you want, we can make a some sort deal from one made from bohler k510, i have "honed" the heat treating process from it to make it ultra strong

But HSS is available cheaply in a range of blank sizes, pre hardened to suitable hardness for cutting steels

[far_cry]

thanks for the help

i did some test and i found that the HSS is better than the metal file

sharpining both and try scratch a LOCK in the hardened metal

the HSS superpass the metal file

[ramses]

Remember that you must be careful when grinding the HSS bit. If it starts to discolor, it is too hot. If it gets to about blue, you have drawn the temper and it needs to be rehardened, which cannot really be done at home.

[jakethebeast]

ramses, hope you remeber that with any kind of hardened steel

[far_cry]

Remember that you must be careful when grinding the HSS bit. If it starts to discolor, it is too hot. If it gets to about blue, you have drawn the temper and it needs to be rehardened, which cannot really be done at home.

thank you for that information

that the cause when the workpiece starts grinding the HSS cutting tool on my mini lathe .

that one hell of an advice ,thank you very much. :salute: :salute: :salute: :salute: :salute: :salute: :salute: :salute:

grinding the HSS bit is done very fast because of the small drill bit (3.5mm), but what can i do for the lathe bigger cutting tool ?