The blacksmith's guide : valuable instructions on forging, welding, hardening, tempering, casehardening, annealing, coloring, brazing, and general blacksmithing (1907)
Sallows, J. F. (James Francis), 1865- · Brattleboro, Vt. : The Technical Press · leaf 21
THE BLACKSMITH’S GUIDE which is to be broken on these pieces, and place an¬ other small piece of steel on top of the bar in the cen¬ ter, at B. By striking a good solid blow the bar will be easily broken. A bar will break more readily if a little water is first poured around the nicks. Heating and… … and drawn down under the hammer it will be concave as at A, Fig. 9. This causes a parting of the metal, and when machined the piece will show checks and cracks of considerable size. The same results will follow if not properly hammered, even if the piece is carefully heated. If the blows are not…
Blacksmithing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
