Friction measurement apparatus for sheet metal forming
1999; Elsevier BV; Volume: 224; Issue: 1 Linguagem: Inglês
10.1016/s0043-1648(98)00288-9
ISSN1873-2577
AutoresShanlin Hao, Barney E. Klamecki, S. Ramalingam,
Tópico(s)Advanced Surface Polishing Techniques
ResumoFriction at the tooling–workpiece interface is very important in sheet metal forming operations. Accurate knowledge of friction at such interfaces is needed for process design and analysis, numerical process simulation and validation and control of forming processes. Two physical models or friction simulators, based on the stretching of a strip around a pin, were developed to characterize sheet metal forming friction. In contrast to other test apparatus which use measurements of strain to infer friction forces, these apparatus use direct measurements of forces. Effects of strain, stretching speed, lubrication, pin radius and wrap angle on coefficient of friction were determined.
Referência(s)