Experiments upon homogeneous iron

✍ Scribed by C.

• Book ID: 103086980
• Publisher: Elsevier Science
• Year: 1878
• Tongue: English
• Weight: 59 KB
• Volume: 105
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(78)90452-0

✦ Synopsis

Homogeneous Iron.

63 Ex])eriments upon Homogeneous Xron.--From late experiments in the dockyard of Castellamare, the following inferences are drawn : 1. That punching alters the molecular constitution of homogeneous iron. 2. That this alteration does not extend more than a millimetre from the hole. 3. That annealing is of no use if it is employed before punching, but it restores the ductility if it is employed afterwards. 4. That this advantage is lost if the holes are subsequently enlarged by a reamer. 5. That drilled holes produce no sensible alteration in the molecular structure and ductility, even if they are slightly enlarged by a reamer. Experiments are contemplated with small punches, with a diameter at least 2 ram. smaller than the holes, the holes to be subsequently enlarged by ~ills.--I/ Politeenieo, from .Rivista Maritlma.

C.