Case Studies in Forensic Metallurgy

Careening Chip

Image Gallery

Schematic of saw blade, showing how the carbide tooth fractured both along the join and through the carbide. Subject blade, showing multiple broken teeth. Detached tooth No. 1 in SEM mount, edge-on, showing fracture through the joint and the carbide.

Reading

Russell, Ken. Letter, Sawblade Investigation. (PDF)

Assignments

Please prepare a short presentation on soldering and brazing. Pay particular attention to the processes intentions and techniques/methods.

Please prepare a short presentation on the Careering Chip case and evidence.

Further Reading

“Calamities” column: The Case of the Careening Chip