When an aluminum sheet is finished by a pair of specific rolls with surface textures produced by electrical discharge texturing (EDT) technique the textures are transferred from the rolls to the sheet producing the socalled EDT sheets.
Traditionally, laser texturing of mill roller is using a rotating chopper for beam modulation and the output pulse rate is 10 kHz (Wan, 2008, ). Texturing a roller with length of 1800mm and radius of 300mm will cost 132 minutes. In order to meet the industrial requirements and improve the surface quality of a textured roller
Currently, shot blasting (SB), laser beam texturing (LBT) and electrical discharge texturing (EDT) are the three principal methods used to texture mill rolls, however, electron beam texturing (EBT ...
Sim~OJ, Aspinwall DK, Wise MLH, EiMenshawyt MF (1994) Mill roll texturing using EDT. J Mater Process Technol 45:207214. Google Scholar Singh M, Jain VK, Ramkumar J (2020) Microtexturing on flat and cylindrical surfaces using electric discharge micromachining. J Micromanufacturing. Google Scholar
The high chromium steel (Cr5) roll of the microexperimental rolling mill was scratched with three marks through electrodischarge texturing [28], in a zone of 2 × 5 cm 2, roughness 3 µm, ...
EDT Sandblasting Texturing Twinroll casting Download conference paper PDF Introduction The twinroll continuous casting method is one of the most frequently used casting methods in aluminum sheet production.
This surface texture is imprinted from the rolling mill roll onto the rolled sheet by skin rolling [2]. The modification of the surface topography of rolling mill rolls commonly results in a random surface texture pattern using, for example, sandblasting or electro discharge texturing (EDT) [3], [4].
The particular electrical discharge texturing (EDT) technique used affords a high degree of process control compared with more conventional methods and, therefore, optimisation of roll texture is possible through the selection of the appropriate operating variables.
Currendy, shot blasting (SB), laser beam texturing (LBT) and electrical discharge texturing (EDT) are the three principal methods used to texture mill rolls, however, electron beam texturing (EBT) is being evaluated.
Surface texture of a temper mill work roll plays an important role in steel sheet production. Electrical discharge texturing (EDT) is a common texturing method to meet the strict
This study investigated the surface roughness characteristics of rolls textured using the ShotBlast Texturing and ElectroDischarge Texturing methods. The rolling tests were carried out in an actual cold rolling mill tandem line, and the surface roughness transferred from the roughened rolls to the material with these two methods was examined. The study measured and compared the surface ...
Nondirectional and diffuse reflecting photometric proper ties may be imbued to a metal sheet Stock, particularly aluminum alloy sheet Stock, by directly creating a textured Surface on one or more Surfaces of the sheet Stock through mechanical texturing with at least one textured work roll in a cold roll reducing mill. A textured metal sheet Surface thus produced is characterized by having ...
Surface texturing has brought significant improvements in the functional properties of parts and components. Sinker electro discharge machining (SEDM) is one of the processes which generates great texturing results at different scale. ... Simão J., Aspinwall, Wise, ElMenshawy Mill roll texturing using EDT. J. Mater. Process ...
Chrome Deposit Corporation gives you access to skilled technicians, longrunning experience and innovative technologies unequaled anywhere else. From chrome plating and grinding, to EDT, bearing and chock inspection and maintenance, Chrome Deposit Corporation does it all. Since 1982, rolling mills throughout North America have relied on Chrome ...
Mill roll texturing using EDT. Article. Sep 1994; J. Simão; Aspinwall; Wise; ElMenshawy; The surface texture of sheet steel of the type used for automotive applications plays an ...
[4] Simão J, Aspinwall D K, Wise M L H and ElMenshawy M F 1994 Mill roll texturing using EDT Journal of Materials Processing Technology 45 20714. Crossref Google Scholar [5] Elkoca O 2008 A study on the characteristics of electrical discharge textured skin pass mill work roll Surface and Coatings Technology 202 276574. Crossref Google Scholar
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Aspinwall et al. (1992) in their work proposed use of EDT for texturing of mill rolls and characterized textured surfaces in terms of Ra and peak count (Pc). This was because surface roughness and peak distribution are of particular importance in case of random textures. The characterization of surface textures generated using EDT in terms of ...
Roll texturing service represent a process of changing inside structure of the metal material, or surface structure of the material of the workpiece (work roll from finishing Rolling Mill lines) by controlled electrical discharges where electrical pulses were generated between an electrode and a work roll, which results in the formation of micronic craters and recesses on its surface.
Crucial here is a specific roughness on the work rolls created by electric discharged texturing (EDT). Once it is applied to the roll barrel, this roughness transfers precisely onto the strip surface. Using EDT rolls ensures the required quality and durability of the color coatings on the exposed parts. The EDT rolling stand is highly versatile.
It is the standard output from a cold mill and reflects the roll grinding practice. Electrodischarge texturing (EDT) produces a wellcontrolled texture (built up from microscopic craters) on the roll barrel surface. This pattern transfers to the sheet surface during a final light reduction pass (up to 5% reduction) at the end of cold rolling ...
Recent advancements in electrical discharge texturing (EDT) make it a suitable candidate for many novel and innovative applications. This paper presents a comprehensive review of experimental and modeling works on topography characterization of random and isotropic surface textures generated using the EDT process.
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Electrodischarge texturing (EDT) can produce a wide range of Ra FR roughness from to 10 µm with a Pc FR peak count up to 150 cm −1, with a uniform microrelief surface, good ...
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