Thank you, Professor Lauren, for your demonstration on the use of the drawing mill. For those who are unfamiliar with the need for annealing as she mentioned @ 6:18, metals become work hardened from compression, extrusion or torsion such as hammering, stretching or twisting. Eventually the internal stresses from work hardening will make the metal overly brittle and it will crack. Annealing by heating the metal will relieve the internal stresses and restore the metal's malleability and ductility.
Thank you, Professor Lauren, for your demonstration on the use of the drawing mill. For those who are unfamiliar with the need for annealing as she mentioned @ 6:18, metals become work hardened from compression, extrusion or torsion such as hammering, stretching or twisting. Eventually the internal stresses from work hardening will make the metal overly brittle and it will crack. Annealing by heating the metal will relieve the internal stresses and restore the metal's malleability and ductility.
Where do you teach your courses?
Stephen F. Austin State University in Nacogdoches, TX
@@laurenseldenmakingthings7045 might be a bit of a drive to take a course 🥴