How do you remove excess metal before grinding?

C

claybuster5

Joined
Nov 18, 2012
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I put on my fiberglass reinforced dremel cutting piece and tried to cut through about an inch of .058 thick 15N20 and it took me literally 35 minutes. I see people with portable bandsaws but I don't have $300 let alone $100.
Thanks,
Patrick
 
I have an old angle grinder and the 4" cutoff wheels for those. Also, like above, a good hacksaw with appropriate blades will make short work of just a 1" cut.

On another note, how do you like the 15n20?
 
A decent hacksaw will just plow through thin steel, get a high tension frame and some lenox blades. You will be good on most stuff with just the hacksaw.

I use a chop saw to rough to length and then I grind to profile on most of my knives. I should probably get a bandsaw!

A band saw is the right tool for the job, look into portaband setups and metal cutting band saws. Here is a portaband on a stand that these guys make for ideas ---> http://www.swagoffroad.com/Metal-Fabrication-Tools-_c_7.html

15n20 rocks by the way, it is tough as can be and holds a great edge.
 
I use an angle grinder to cut the length and a very rough shape. Then it's on to the bench grinder and finally the belt grinder.
 
You can score good milwakee brand porta bands on craigslist for around $100 with a little searching. I'm a fan of the bench grinder myself, you can get a cheap older one that will probobly last you forever.
 
I know you said that money is tight. I just wanted to say that I picked up a Milwaukee Portaband, swag stand and m42 Lenox blades. This is a remarkable solid setup. With a miter gauge for the built in tracks, you can make some pretty cuts. When free handing a smooth curve in aluminum, this setup cut very easily and cleanly. Just something to keep in mind for the future.
 
Daniel Fairly Knives said:
A decent hacksaw will just plow through thin steel, get a high tension frame and some lenox blades. You will be good on most stuff with just the hacksaw.

I use a chop saw to rough to length and then I grind to profile on most of my knives. I should probably get a bandsaw!

A band saw is the right tool for the job, look into portaband setups and metal cutting band saws. Here is a portaband on a stand that these guys make for ideas ---> http://www.swagoffroad.com/Metal-Fabrication-Tools-_c_7.html

15n20 rocks by the way, it is tough as can be and holds a great edge.
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That was not my experience, even with lenox bimetal blades. To take on a long cut like splitting a 4x24" sheet into 2 lengths was a serious chore, a work of several hours.

If a band saw is not available get an angle grinder.
 
ernestrome said:
That was not my experience, even with lenox bimetal blades. To take on a long cut like splitting a 4x24" sheet into 2 lengths was a serious chore, a work of several hours.

If a band saw is not available get an angle grinder.
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It depends on the source.

If they are from used logging bandsaw blades, they will be spring tempered and tough to cut.

If it's fully annealed bar stock, not nearly as difficult to work.
 
12345678910 said:
It depends on the source.

If they are from used logging bandsaw blades, they will be spring tempered and tough to cut.

If it's fully annealed bar stock, not nearly as difficult to work.
Click to expand...

That is true, anneal that stuff! Cut it backed or keep it stiff too otherwise it will be a battle. I can even cut Ti fast with a hacksaw.

A hacksaw is not ideal for a big cut or a lot of knives but they are good for small tasks.

I use a lot of force, I can cut a 1/4" tube with one good draw easily.
 
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