estampación (n)

Stauchen (n)

swaging (n)

upsetting (n)

Upsetting processes include surfacing, compression surface finishing and sizing.

The outer punch is known as a hollow upsetting punch.

Upsetting can be a cold working (cold solid forging) or a warm working (also a basic forging procedure) process.

模锻 (n)

镦锻 (n)