The Journal of Historical Armsmaking Technology Vol I and Vol V have great info on lockmaking as it was done. Volume I is 84 pages titled The Production of Flintlocks Used on Colonial American Rifles: Raw Materials, Tools, and Technology by Gary Brumfield, There are sections about each lock part and their construction, including 55 illustrations with photos of some of the swages used to make the parts. Volume V has a 23 pg chapter Cock Forging: A Study in Technology by Gary Brumfield with 24 photos/drawings, including swages used the forge the cock.