Hobby machining - USA HSS >>> asian HSS

Spider! · 06-28-2011, 10:59 AM

I've had my little 7x14 lathe for about a year now, and most of it's shortcomings I can deal with. However, it came with a bunch of cheap tooling that has brought back a lot of things that I used to know, but thought weren't true any more.

Mainly, American high speed steel is much stronger than cheap asian high speed steel. I completely blunted a "HSS" center drill trying to dimple a stainless cocker hammer. I ended up using one of my good American HSS drill bits.

After beating up some asian carbide inserts at various speeds, I finally bought some American HSS inserts. They cut so much better.

Beest · 06-28-2011, 02:52 PM

I'm a material scientist for an automotive supplier, I sometimes evaluate steels from different suppliers, just because all the materials meet the spec. does not make them equally good, you get what you pay for

06-28-2011, 10:59 AM	#1 (permalink)
Spider! MCB Member Join Date: Dec 2008 Location: Houston, TX	Hobby machining - USA HSS >>> asian HSS I've had my little 7x14 lathe for about a year now, and most of it's shortcomings I can deal with. However, it came with a bunch of cheap tooling that has brought back a lot of things that I used to know, but thought weren't true any more. Mainly, American high speed steel is much stronger than cheap asian high speed steel. I completely blunted a "HSS" center drill trying to dimple a stainless cocker hammer. I ended up using one of my good American HSS drill bits. After beating up some asian carbide inserts at various speeds, I finally bought some American HSS inserts. They cut so much better. __________________ My Feedback Last edited by Spider!; 06-28-2011 at 03:24 PM.

06-28-2011, 02:52 PM	#2 (permalink)
Beest Active Member Join Date: Oct 2006 Location: Ann Arbor, Mi	I'm a material scientist for an automotive supplier, I sometimes evaluate steels from different suppliers, just because all the materials meet the spec. does not make them equally good, you get what you pay for __________________ Cheers Beest Adapt and Survive

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