Travis

Simple answer is Yes.

Laws of physics dictates it.

We all know that steel expands when its heated, and contracts when its cool, and will do so at varying rates depending on the thickness of the steel, so a 1 inch thick block will cool slower than a 1/8 inch shim only makes sense right? The greater the mass, the longer it will retain heat.

So, what happens if you have that 1 inch block, but you also have a bunch of places with only 1/8th or 1/16 inch thickness? Well we know that the thinner pieces will be completely cool, while the thicker pieces are still hot, they will expand and or cool at different rates. Its gotta happen.thus you have warpage. the steel has to move, even if you have blocking. It will just move after you take the blocks out

Back in the day, most companies had hard fitters who would tweak the parts back into shape. Many firearm companies stopped case hardening once better steels were developed; just for that reason too much warpage.

Think Winchester had 5-10% failure rate, so in 1903 Stopped CCH altogether.

Last edited by Mike Hunter; 05/05/20 11:02 AM.