I just got to wondering about internal stresses in 4140 round stock . I'm
making a part for an oilless compressor , and have it roughed a bit oversize
.. I know that some steels and other metals develop internal stress from
forming operations , and need a few hours to let the stresses equalize
before finishing machining so the finished part doesn't distort . Got to
wondering if 4140 is one of them .
--
Snag