The paper gives the results of a series of tests aimed at evaluating the effect of the electrical discharge texturing (EDT) process on the surface integrity of mill work rolls using two different electrical generator and dielectric flushing arrangements.
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[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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Currently, shot blast texturing (SBT), electric discharge texturing (EDT), electron beam texturing (EBT) and laser texturing (LT) are the three principal methods used to texture mill rolls. Many mills use these methods currently. However, conventional methods for texturing the mill rollers used in the cold rolling of automotive sheet steel have ...
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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, ...
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Mill roll texturing using EDT. J. Simão D. Aspinwall M. Wise M. F. ElMenshawy. Materials Science. 1994; 27. Save. Surface design and texturing of strip steel using nanosecond pulsed lasers for simulated roughness transfer and paint appearance. E. RodríguezVidal D. Matthews V. S. Viteri F. Korver D. Wentink I. Quintana.
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Elkoca pointed out that texturing of the rolling mill roll allows obtaining rolled products with a predefined texture thus ensuring more uniform ... machine model Melo P36, wheel rotation of 3000 rpm. Texturing of the specimens was carried out by electrical discharge texturing (EDT), using a commercial equipment model Engemaq 440 MC ...
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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 ...
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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. Sample EDT operating data are presented covering the effects of peak current ...
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Shot blasting (SB) is widely used to texture mill rolls however, a number of alternative processes, such as electrical discharge texturing (EDT), laser beam texturing (LBT) and electron beam texturing (EBT) have been shown to offer improvements in subsequent sheet/strip formability and paintability operations [1].
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Microhardness measurement of roll crosssections indicated an increase in white layer hardness of ∼300 HK () when employing sintered TiC/WC/Co tools, compared with conventionally processed EDT rolls. In rolling trials using mill rolls textured with PM tool electrodes, roll/strip texture transfer measures (R a and P c), were consistently ...
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Paint films with uniform thicknesses ranging from 150 to 820 μm were applied on stainless steel substrates using a model paint consisting of a resin dissolved in ... Mill roll texturing using EDT. J. Simão D. Aspinwall M. Wise M. F. ElMenshawy. Materials Science. 1994; 27. Save. Bubble growth and movement in drying paint films. N. Saranjam S ...
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Semantic Scholar extracted view of "The influence of different workroll texturing systems on the development of surface structure in the temper rolling process of steel sheet used in the automotive industry" by Pawelski et al. ... (EDT) process on the surface integrity of mill work rolls using two different . Expand. 1. Save.
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Keywords: EDT, EDM, Surface texturing, Surface roughness. * Author to whom correspondence should be made, Email: ssjoshi 1. INTRODUCTION Large area texturing using EDM finds application in mill rolls [1], orthoimplants [2], and solar cells [3]. Each of these applications require different surface roughness values which
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Irrespective of the EDT roll surface topography, the coating showed a typical surface hardness in the range HV ()= against approximately 800 HV for the roll base material.
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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.
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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.
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See other industries within the Manufacturing sector: Aerospace Product and Parts Manufacturing, Agriculture, Construction, and Mining Machinery Manufacturing, Alumina and Aluminum Production and Processing, Animal Food Manufacturing, Animal Slaughtering and Processing, Apparel Accessories and Other Apparel Manufacturing, Apparel Knitting Mills, Architectural and Structural Metals ...
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Different sheet surface EDT texture grades were generated using three levels of reduction percentages (difference between the work roll gap with respect to the sheet thickness), named as low, medium, and high textured surfaces (reference nontextured mill finish sheets were also included in the study as control).
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Mill roll texturing using EDT. 1994, Journal of Materials Processing Tech. Show abstract. The surface texture of sheet steel of the type used for automotive applications plays an important role during subsequent processing operations. With textured steel, "sticker wrench" marks are less likely to occur during batch annealing, formability is ...
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The thickness of steel sheets is usually reduced by passing the cold coil through rolls in a cold mill. These work rolls have a distinct surface texture, often generated by electrical discharge texturing (EDT). When the sheets pass through these work rolls, the texture of the work rolls will be imparted on the surface of the sheets. This surface characteristic may influence the sheet's paint ...
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Electrical discharge texturing (EDT) is one of the texturing technique that can create textures on steel sheet that fulfill the demands of appearance and corrosion resistance in the...
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Mill roll texturing using EDT. Journal of Materials Processing Technology, 45(14), 207214. Le Zhou, Peifeng Chen, Ying Wang. (2009). Analysis of approximate round crater in multihead laser
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A material supplier from Belgium would like to produce limestone powder for his custome...
India is rich in various mineral resources and it is an important mineral processing market
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