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ERDOGAN KANCA1,* , I. HAKKI KARAHAN2, O. EYERCIOGLU3
The effect of high-speed punching on the quality and corrosion resistance of the shear surface of the austenitic stainless steel, American Iron and Steel Institute (AISI) type-304 (AISI-304 SS), has been investigated. The work presented in this article aims at evaluating the improvement in the shear-surface quality of the AISI-304 SS resulting from the use of highenergy-rate forming (HERF) machine. The appraisal is based on criteria related to the characterization of surface accuracy and corrosion resistance. For this purpose, AISI-304 stainless steels were cut with three different types of cutting machines, namely, laser cutting machine, conventional press at low punch velocity (0.5 m/s), and HERF at high punch velocity (12 m/s). By using the HERF machine, a reduction of more than 50% in the surface roughness average was achieved, and better resistance to both stress-corrosion cracking and pitting corrosion was noticed. Before and after the accelerated corrosion tests, samples were subjected to scanning electron microscopy to study the changes during the cutting process of the samples at room temperature. HERF-cutting was observed to improve the corrosion resistance of AISI-304 SS. Moreover, specimens cut using the HERF machine showed excellent corrosion resistance compared with those cut in a conventional manner with laser.
Corrosion [B], Roughness [B], Chromium alloy [D], Punching Speed [X].
ERDOGAN KANCA, I. HAKKI KARAHAN, O. EYERCIOGLU, Shear-surface improvement of the austenitic stainless steel AISI 304 using high-speed punching, Optoelectronics and Advanced Materials - Rapid Communications, 2, 12, December 2008, pp.822-827 (2008).
Submitted at: Nov. 2, 2008
Accepted at: Dec. 4, 2008
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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