Galvanneal Powdering in Drawbeads

970150

02/24/1997

Event
International Congress & Exposition
Authors Abstract
Content
Coating mass losses occurring on two galvannealed sheet steel samples, one with and one without significant amounts of zeta in the coating, were measured in draw bead simulator tests at different bead penetrations, sliding speeds and with different amounts of oil on the surface. Coating mass losses were small relative to the coating weight. The galvanneal coating without zeta exhibited a greater mass loss than the coating with zeta. Bead penetration was an important variable affecting coating mass loss in both coils, and through an interaction with sliding speed in one coil. Compressive strains due to bending and unbending are the primary cause for coating mass loss; sliding friction did not enhance coating mass loss. The quantitative results are compared with coating mass losses that occur in other formability tests.
Meta TagsDetails
DOI
https://doi.org/10.4271/970150
Pages
13
Citation
Rangarajan, V., "Galvanneal Powdering in Drawbeads," SAE Technical Paper 970150, 1997, https://doi.org/10.4271/970150.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970150
Content Type
Technical Paper
Language
English