G0401-2-3 Surface Characteristics of Stainless Steel Sheets Cold-rolled in Two Passes with Rolls Polished in Axial Direction

2009 ◽  
Vol 2009.1 (0) ◽  
pp. 255-256
Author(s):  
Hiroyasu YAMAMOTO ◽  
Daigo SOUMA ◽  
Hiroshi IKUTA ◽  
Tsugio MIZUTA
Keyword(s):  
Stainless Steel ◽  
Surface Characteristics ◽  
Axial Direction ◽  
Steel Sheets ◽  
Cold Rolled

Spot Weldability Assessment of Similar and Dissimilar Steel Sheets for Light Weight Automobile Body

2006 ◽  
Vol 306-308 ◽  
pp. 899-904
Author(s):  
Dong Ho Bae ◽  
Won Seok Jung ◽  
J.B. Heo
Keyword(s):  
Stainless Steel ◽  
Fatigue Strength ◽  
Lap Joints ◽  
Vehicle Body ◽  
Rolled Steel ◽  
Cold Rolled Steel ◽  
Steel Sheets ◽  
Automobile Body ◽  
Cold Rolled ◽  
Spot Welded

An effective way to reduce the weight of vehicle body seems to be application of new materials, and such trend is remarkable. Among the various materials for automobile body, stainless steel sheets and cold rolled steel sheets are under the interests. However, in order to guarantee reliability of new material and to establish the long life fatigue design criteria for body structure, it is necessary to assess spot weldability and fatigue strength of spot welded lap joints fabricated under optimized spot welding condition. In this paper, spot weldability of stainless steel sheets, STS301L and STS304L, and cold rolled steel sheets, SPCC and SPCD. Fatigue strength of lap joints spot welded between similar and dissimilar materials were also assessed.

Effect of the Rolling Draughts on the Evolution of Textures and Microstructures in 17.5 Cr-1.1 Mo Ferritic Stainless Steel Sheet

2005 ◽  
Vol 495-497 ◽  
pp. 363-368
Author(s):  
Soo Ho Park ◽  
Hyung Gu Kang ◽  
Yong Deuk Lee ◽  
Jae Chul Lee ◽  
Moo Young Huh
Keyword(s):  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Steel Sheet ◽  
Recrystallization Annealing ◽  
Reduction Degree ◽  
Stainless Steel Sheet ◽  
Steel Sheets ◽  
Hot Band ◽  
Cold Rolled ◽  
Number Of Passes

In order to investigate the effect of the reduction degree per rolling pass on the evolution of recrystallization textures and microstructures, the hot band of 17.5 Cr-1.1 Mo ferritic stainless steel sheets were cold rolled with lubrication according to two processing routes, by which different reduction degrees per pass were introduced. Rolling with a large number of passes led to the formation of fairly homogeneous rolling textures at all through-thickness positions. In contrast, cold rolling with large draughts resulted in pronounced texture gradients along the thickness direction. After recrystallization annealing, the texture maximum was obtained at {334}<483> in all samples regardless of the rolling routes and thickness layers. During subsequent annealing, recrystallization was observed to be faster in those grains with {111}<uvw> orientations, while it was retarded in grains having orientations close to {001}<110>.

scholarly journals Comparison of Laser-Engraved Hole Properties between Cold-Rolled and Laser Additive Manufactured Stainless Steel Sheets

2017 ◽  
Vol 7 (9) ◽  
pp. 913 ◽  
Author(s):  
Matti Manninen ◽  
Marika Hirvimäki ◽  
Ville-Pekka Matilainen ◽  
Antti Salminen
Keyword(s):  
Stainless Steel ◽  
Steel Sheets ◽  
Cold Rolled

Effects of Process Parameters on Surface Characteristics in Cutting of Cold Rolled Steel Sheets Using a High-Power CW Nd: YAG Laser

2008 ◽  
Vol 580-582 ◽  
pp. 455-458 ◽  
Author(s):  
Dong Gyu Ahn ◽  
Min Su Kim ◽  
Young Tae Yoo ◽  
Hyung Jun Park
Keyword(s):  
Surface Roughness ◽  
Process Parameters ◽  
High Power ◽  
Continuous Wave ◽  
Cutting Speed ◽  
Surface Characteristics ◽  
Rolled Steel ◽  
Cold Rolled Steel ◽  
Steel Sheets ◽  
Cold Rolled

The objective of the present paper is to examine the effects of process parameters, such as laser power, cutting speed of the laser and thickness of the workpiece, on characteristics of the cut section in the cutting of cold rolled steel sheets using a high-power Nd:YAG laser with a continuous wave (CW). From the results of the experiments, the influence of the process parameters on surface roughness and average striation angle has been quantitatively investigated. In addition, critical cutting speeds with a minimum surface roughness and a maximum average striation angle has been obtained. Finally, the optimum cutting conditions for each workpiece thickness have been estimated to improve both the quality of the cut section and the cutting efficiency.

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