On 2018-02-10 11:28 AM, Electric Comet wrote:
On Sat, 10 Feb 2018 06:46:37 -0700
graham wrote:

advert. Apparently General used to age all the castings to allow
stress relief before machining them. The quality of their table saws
was legendary. I saw some ex-school shop ones in a local store

i saw on some vendor site future metal lathe parts
they season them outdoors for months and years before they finish
them and make them into lathes or mills etc

i doubt the stuff made in china is seasoned before they finish them

They most probably re-heat the cast iron to relieve the stress in higher
quality tools.
In the early days of Taiwanese imports, it paid to take a straight edge
with you when buying, say, a table saw to check the flatness of the table.
These days the quality is much higher.