Optimization of Accuracy and Surface Finish of Drilled Holes in 350 Mild Steel

2019 ◽  
pp. 65-90
Author(s):  
A. Pramanik ◽  
A. K. Basak ◽  
M. N. Islam ◽  
Y. Dong ◽  
Sujan Debnath ◽  
...  
Keyword(s):  
Mild Steel ◽  
Surface Finish

Experimental Investigation of Effect of Rotary Abrasive Jet Nozzle on Coating Removal Rate and Surface Finish

2014 ◽  
Vol 1043 ◽  
pp. 165-171 ◽  
Author(s):  
D.S. Robinson Smart ◽  
D.P. Rufus ◽  
Lijin George
Keyword(s):  
Surface Roughness ◽  
Experimental Investigation ◽  
Mild Steel ◽  
Surface Finish ◽  
Removal Rate ◽  
Variable Angle ◽  
Coating Removal ◽  
Jet Nozzle ◽  
Rotary Speed

An abrasive jet machine can be used effectively for removing the existing coating on the surfaces .A rotating, variable angle abrasive jet nozzle has been designed to produce a swirling abrasive jet .The horizontal and the vertical striking angles of the abrasive jet nozzle has been adjusted as 50° ,40° respectively [1] . Investigations have been carried out to evaluate the effect of Garnet and SiO2 abrasives and the speed of the rotation of the nozzle on coating removal rate. Coated Mild steel, Galvanized Iron and Aluminium were used as specimens for investigations. The rotary abrasive jet nozzle provides the swirling abrasive jet and intensifying the shearing action as the speed increases gradually and reached up to 355 rpm. The surface roughness of the coating removed samples for various rotary speed of the abrasive jet nozzle were observed and measured. The surface roughness was found to be more closely associated with the speed of rotation of the abrasive jet nozzle.

Cutting tool vibration analysis for better surface finish during dry turning of mild steel

2018 ◽  
Vol 5 (11) ◽  
pp. 24605-24611
Author(s):  
Samarjit Swain ◽  
Sudeepta Chattarjee ◽  
Isham Panigrahi ◽  
Ashok Kumar Sahoo
Keyword(s):  
Mild Steel ◽  
Surface Finish ◽  
Vibration Analysis ◽  
Cutting Tool ◽  
Dry Turning ◽  
Tool Vibration

Characterization of machined polystyrene foam

1989 ◽  
Vol 47 ◽  
pp. 372-373
Author(s):  
C. W. Price ◽  
E. F. Lindsey ◽  
R. M. Franks ◽  
M. A. Lane
Keyword(s):  
Surface Finish ◽  
Cell Walls ◽  
Surface Structures ◽  
Efficient Technique ◽  
Low Density ◽  
Polystyrene Foam ◽  
Planar Surfaces ◽  
Machining Characteristics

Diamond-point turning is an efficient technique for machining low-density polystyrene foam, and the surface finish can be substantially improved by grinding. However, both diamond-point turning and grinding tend to tear and fracture cell walls and leave asperities formed by agglomerations of fragmented cell walls. Vibratoming is proving to be an excellent technique to form planar surfaces in polystyrene, and the machining characteristics of vibratoming and diamond-point turning are compared.Our work has demonstrated that proper evaluation of surface structures in low density polystyrene foam requires stereoscopic examinations; tilts of + and − 3 1/2 degrees were used for the stereo pairs. Coating does not seriously distort low-density polystyrene foam. Therefore, the specimens were gold-palladium coated and examined in a Hitachi S-800 FESEM at 5 kV.

Effect of denture cleansers, surface finish, and temperature on Molloplast B resilient liner color, hardness, and texture

2000 ◽  
Vol 9 (3) ◽  
pp. 148-155 ◽  
Author(s):  
Han-Kuang Tan ◽  
Andrew Woo ◽  
Silvia Kim ◽  
Michael Lamoureux ◽  
Michael Grace
Keyword(s):  
Surface Finish ◽  
Denture Cleansers
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