A lens ultrasonic vibration-assisted laser machining system for laser polishing and laser drilling of 304 stainless steel

2021 ◽  
Vol 144 ◽  
pp. 107419
Author(s):  
Di Kang ◽  
Ping Zou ◽  
Wenjie Wang ◽  
Jilin Xu ◽  
Cheng Shen
Keyword(s):  
Stainless Steel ◽  
Ultrasonic Vibration ◽  
Laser Drilling ◽  
304 Stainless Steel ◽  
Laser Machining ◽  
Laser Polishing ◽  
Machining System

Research on ultrasonic vibration-assisted laser polishing of the 304 stainless steel

2021 ◽  
Vol 62 ◽  
pp. 403-417
Author(s):  
Di Kang ◽  
Ping Zou ◽  
Hao Wu ◽  
Wenjie Wang ◽  
Jilin Xu
Keyword(s):  
Stainless Steel ◽  
Ultrasonic Vibration ◽  
304 Stainless Steel ◽  
Laser Polishing

scholarly journals Theoretical and Experimental Study of Ultrasonic Vibration-Assisted Laser Polishing 304 Stainless Steel

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 206146-206163
Author(s):  
Di Kang ◽  
Ping Zou ◽  
Hao Wu ◽  
Wenjie Wang ◽  
Jilin Xu
Keyword(s):  
Experimental Study ◽  
Stainless Steel ◽  
Ultrasonic Vibration ◽  
304 Stainless Steel ◽  
Laser Polishing

Comparative experimental research in turning of 304 austenitic stainless steel with and without ultrasonic vibration

2016 ◽  
Vol 231 (15) ◽  
pp. 2885-2901 ◽  
Author(s):  
Yingshuai Xu ◽  
Ping Zou ◽  
Yu He ◽  
Shuo Chen ◽  
Yingjian Tian ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Tool Wear ◽  
Surface Quality ◽  
Ultrasonic Vibration ◽  
Cutting Forces ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
304 Austenitic Stainless Steel ◽  
Machining System

The aim of this paper is to present an experimental investigation of the cutting forces, surface quality, tool wear and chip shape in ultrasonic vibration assisted turning (UAT) of 304 austenitic stainless steel (ASS 304) in comparison to conventional turning (CT). This study focuses on the solution of the machining difficulties of ASS 304 and high demands for the processing quality and efficiency. The machining system of UAT is schemed out to assure the desired machining effect by utilizing ultrasonic vibration method. Meanwhile, a series of systematic experiments are performed with and without ultrasonic vibration using the designed machining system of UAT with cemented carbide coated cutting tool. The results obtained from the UAT and CT experiments demonstrate that the cutting effect of UAT is much better than that of CT. Furthermore, the results of this research indicate that the ultrasonic amplitude, cutting speed, feed rate and depth of cut in UAT of ASS 304 have visible influence on the cutting forces, surface quality and tool wear. And reasonable selection of various technological variables in UAT can obtain lower cutting forces, more superior surface roughness, advantageous surface topography, slow and less tool wear, thin and smooth chips.

scholarly journals Theoretical And Experimental Research On 3D Ultrasonic Vibration-Assisted Turning Driven By a Single Actuator

2021 ◽  
Author(s):  
Shiyu Wei ◽  
Ping Zou ◽  
Jiahao Zhang ◽  
Jingwei Duan ◽  
Rui Fang
Keyword(s):  
Stainless Steel ◽  
Theoretical Analysis ◽  
Ultrasonic Vibration ◽  
Experimental Research ◽  
Three Dimensional ◽  
304 Stainless Steel ◽  
Machined Surface ◽  
Theory And Experiment ◽  
Dimensional Surface

Abstract In this paper, the peak heights of several turning methods were analyzed theoretically. Based on the results of theoretical analysis, a 3D-UVAT device driven by a single actuator was developed. To validate this design, the theory and experiment of 3D-UVAT have been undertaken. The FEA results show that design is safe, and can achieve obvious displacements in X-axis, Y-axis, and Z-axis. In the experiment, 304 stainless steel was chosen as experimental material. For comparison, CT, UVAT, and UEVT experiments were also carried out. The experimental results show that with the help of ultrasonic vibration, the surface grooves and defects are significantly reduced. This phenomenon is more obvious on machined surface obtained by 3D-UVAT. Three-dimensional surface topography shows that the roughness value Sa obtained by 3D-UVAT is smaller than CT and UVAT. Under some cutting conditions, the roughness value Sa of machined surface obtained by 3D-UVAT is smaller than UEVT. Thus, the results of theory and experiment proved that the 3D ultrasonic vibration-assisted turning driven by a single actuator has a great potential in improving the quality of machined surface.

Comparison of Recovery and Recrystallization in Stainless Steel Following Plane-Wave Shock Loading and Explosive Forming

1970 ◽  
Vol 28 ◽  
pp. 428-429 ◽  
Author(s):  
J. A. Korbonski ◽  
L. E. Murr
Keyword(s):  
Stainless Steel ◽  
Shock Loading ◽  
Pressure Pulse ◽  
Shock Pressure ◽  
304 Stainless Steel ◽  
Strain Rates ◽  
Two Dimensional ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Explosive Forming

Comparison of recovery rates in materials deformed by a unidimensional and two dimensional strains at strain rates in excess of 104 sec.−1 was performed on AISI 304 Stainless Steel. A number of unidirectionally strained foil samples were deformed by shock waves at graduated pressure levels as described by Murr and Grace. The two dimensionally strained foil samples were obtained from radially expanded cylinders by a constant shock pressure pulse and graduated strain as described by Foitz, et al.

Pyrolytic carbon filaments and associated catalytic particles formed in steel tubes

1984 ◽  
Vol 42 ◽  
pp. 662-663
Author(s):  
Y. L. Chen ◽  
J. R. Bradley
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Catalyst Particle ◽  
Pyrolytic Carbon ◽  
Plain Carbon Steel ◽  
304 Stainless Steel ◽  
Hydrocarbon Gases ◽  
Steel Tubes ◽  
Filamentous Carbon ◽  
Carbon Filaments

Considerable effort has been directed toward an improved understanding of the production of the strong and stiff ∼ 1-20 μm diameter pyrolytic carbon fibers of the type reported by Koyama and, more recently, by Tibbetts. These macroscopic fibers are produced when pyrolytic carbon filaments (∼ 0.1 μm or less in diameter) are thickened by deposition of carbon during thermal decomposition of hydrocarbon gases. Each such precursor filament normally lengthens in association with an attached catalyst particle. The subject of filamentous carbon formation and much of the work on characterization of the catalyst particles have been reviewed thoroughly by Baker and Harris. However, identification of the catalyst particles remains a problem of continuing interest. The purpose of this work was to characterize the microstructure of the pyrolytic carbon filaments and the catalyst particles formed inside stainless steel and plain carbon steel tubes. For the present study, natural gas (∼; 97 % methane) was passed through type 304 stainless steel and SAE 1020 plain carbon steel tubes at 1240°K.

"STUDY OF HYDROGEN INFLUENCE ON THE DISLOCATION MOBILITY IN 304 STAINLESS STEEL"

1985 ◽  
Vol 46 (C10) ◽  
pp. C10-135-C10-138
Author(s):  
LFCP DE LIMA ◽  
P. E.V. DE MIRANDA
Keyword(s):  
Stainless Steel ◽  
304 Stainless Steel ◽  
Dislocation Mobility
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