1999
DOI: 10.1016/s0043-1648(98)00288-9
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Friction measurement apparatus for sheet metal forming

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Cited by 42 publications
(23 citation statements)
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“…Unfortunately, p C -values higher than 30 MPa were not considered. Other authors researched that friction behaviour for p C -values is relatively low (Hao et al, 1999) in spite of they found important changes in the friction stress behaviour just for the highest p C -values they considered (between 12 and 13 MPa). Probably it might have been suitable to confirm the behaviour tendency for upper pressure values.…”
Section: Introductionmentioning
confidence: 93%
“…Unfortunately, p C -values higher than 30 MPa were not considered. Other authors researched that friction behaviour for p C -values is relatively low (Hao et al, 1999) in spite of they found important changes in the friction stress behaviour just for the highest p C -values they considered (between 12 and 13 MPa). Probably it might have been suitable to confirm the behaviour tendency for upper pressure values.…”
Section: Introductionmentioning
confidence: 93%
“…They simulated the stretching of sheet over a punch corner radius in a typical drawing die by bending the strip around two pins. A similar test rig was used by Hsu and Kuo [9] and Hao et al [10] to measure the friction coefficient changes with sliding distance for different materials in dry and lubricated conditions. A similar test rig has also been used by Deng and Lovell [11] to investigate the influence of lubricant properties and pin radius on the interfacial friction and surface quality of Pb-coated sheet steels.…”
Section: Introductionmentioning
confidence: 99%
“…Hao et al [3] simulan el comportamiento tribológico del proceso de embutición en el radio del punzón mediante ensayos de doblado bajo tensión, realizados sobre un dispositivo en U, alojado sobre una máquina universal de ensayos. Estos autores justifican que el dispositivo empleado simula el comportamiento a fricción de los procesos de embutición, determinando el coeficiente de fricción en la zona de doblado.…”
Section: Introductionunclassified