Effect of Process Parameters on Surface Roughness in the Cloth Wheel Polishing of Stainless Steel

2014 ◽  
Vol 548-549 ◽  
pp. 496-500
Author(s):  
S. Sonthimool ◽  
S. Prombanpong ◽  
Viboon Tangwarodomnukun

This paper aims at studying the effect of polishing parameters on surface roughness by using the cloth wheel polishing process. Stainless steel was used as a specimen in this study. The investigation firstly accounted for the comparison between two polishing compounds, and the best one was used to be applied in a set of experiment. The effect of spindle speed, current and polishing time on the surface roughness of stainless steel was examined, and the results showed that polishing time and current played the significant role in degree of roughness. The optimum condition under the range of parameters considered in this work was determined, whose surface roughness was about 0.0466 μm.

2014 ◽  
Vol 548-549 ◽  
pp. 491-495
Author(s):  
P. Tevinpibanphan ◽  
S. Prombanpong ◽  
Viboon Tangwarodomnukun

A polishing process is generally used for improving work surface quality through the abrasive machining scheme. In this study, a stainless steel cookware was polished by using a sisal wheel and its surface roughness was examined. A comparison of three different sisal wheels was initially made to evaluate their performance in terms of capability to achieve the required surface finish against the processing time. The polishing force, time and velocity were the three main parameters, taken into consideration in this study. The optimum condition of 61 m/s, 15 seconds and 65 N for polishing velocity, time and force was suggested, respectively. After implementing the optimum condition and comparing to the current setting, the processing time can be reduced by half.


2007 ◽  
Vol 24-25 ◽  
pp. 77-82 ◽  
Author(s):  
Cong Rong Zhu ◽  
Ju Long Yuan ◽  
Bing Hai Lv ◽  
Zhao Zhong Zhou

This paper focuses on the application of Taguchi method for optimization of SUS440 stainless steel polishing process parameters to obtain the best finish. An optimization experiment for polishing stainless steel with SiO2 was designed by Taguchi method. Surface roughness Ra is considered as criteria for optimization. Influence of parameters involving load, speed, and slurry concentration for a given workmaterial with given abrasive (material and size) are discussed, and the optimum polishing conditions are figured out. Compared with single parameter experimental results, it illustrates that the experiment design based on Taguchi method can successfully applied to determine the optimum processing conditions for SUS440 stainless steel polishing process.


2013 ◽  
Vol 797 ◽  
pp. 444-449 ◽  
Author(s):  
Kai Ping Feng ◽  
Zhao Zhong Zhou ◽  
Bing Hai Lv ◽  
Ju Long Yuan

This paper represents a dual-plane polishing method for ceramics ball. Compared with traditional ball polishing method, its upper and lower plate are all flat and easy to use soft pad to polish, so it can largely reduce the surface mechanical damage and obtain high quality processing surface. This paper analyzes surface polishing trajectory by calculation and simulation to test the polishing trajectory uniformity. A mathematics model of polishing process is established to disintegrate the process of a balls movement. Experiment is operated in dual-plane planetary polishing machine. The result shows that perfect polishing surface and spherical error can be obtained under the proper process parameters, the surface roughness achieves 4nm and the spherical error can reach 0.217μm.


Coatings ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 584
Author(s):  
Pramote Koowattanasuchat ◽  
Numpon Mahayotsanun ◽  
Sedthawatt Sucharitpwatskul ◽  
Sasawat Mahabunphachai ◽  
Kuniaki Dohda

In heat exchange applications, the heat transfer efficiency could be improved by surface modifications. Shot peening was one of the cost-effective methods to provide different surface roughness. The objectives of this study were (1) to investigate the influences of the surface roughness on the heat transfer performance and (2) to understand how the shot peening process parameters affect the surface roughness. The considered specimens were 316L stainless steel hollow tubes having smooth and rough surfaces. The computational fluid dynamics (CFD) simulation was used to observe the surface roughness effects. The CFD results showed that the convective heat transfer coefficients had linear relationships with the peak surface roughness (Rz). Finite element (FE) simulation was used to determine the effects of the shot peening process parameters. The FE results showed that the surface roughness was increased at higher sandblasting speeds and sand diameters.


2013 ◽  
Vol 325-326 ◽  
pp. 1357-1361 ◽  
Author(s):  
Yan Hua Huang ◽  
Dong Xi Lv ◽  
Yong Jian Tang ◽  
Hong Xiang Wang ◽  
Hai Jun Zhang

Experiments were carried out to study the effect of ultrasonic vibration on the surface roughness and subsurface damage (SSD) in rotary ultrasonic machining (RUM) of glass BK7. As a comparison, some conventional grinding (CG) experiments were also performed under the same process parameters with there of the RUM ones. The surface roughness of the RUM/CG samples was measured with a surface profilometer. The SSD of these specimens was assessed and characterized by a measuring microscope with the help of the taper polishing method. Also, the influence of process parameters (cutting depth, feed speed, and spindle speed) on the surface/subsurface quality was discussed. As a result, both the surface roughness and the SSD depth of the RUM/CG specimens were reduced with the increased spindle speed, while increased with the increasing of feed speed and cutting depth of the diamond tool. Compared with the CG process, the introduction of ultrasonic vibration resulted in the higher surface roughness and SSD depth, due to the fact that the max cutting depth of the abrasive in the RUM process increased by an amplitude compared with that in the CG process.


2018 ◽  
Vol 46 (4) ◽  
pp. 20170140 ◽  
Author(s):  
Derahman Nur Aqilah ◽  
Ab Karim Mohd Sayuti ◽  
Yusof Farazila ◽  
Dambatta Yusuf Suleiman ◽  
Mohd Amran Nor Amirah ◽  
...  

2007 ◽  
Vol 359-360 ◽  
pp. 324-328
Author(s):  
Wei Li ◽  
Gang Xiang Hu ◽  
Xiao Dong Hu ◽  
Xiao Zhen Hu

This study compares the effectiveness of different polishing slurries for Double Sided Polishing process of Silicon wafer in the polished surface roughness and stock removal rate, discusses the mechanism of Double Sided Polishing for silicon wafer with different type slurries, also the influence of the pH value, temperature and concentration of the slurries are discussed in this paper. Furthermore, by the optimization of the process parameters, the ultra-smooth of polished surface of silicon wafer has been got with higher efficient.


2014 ◽  
Vol 548-549 ◽  
pp. 506-509 ◽  
Author(s):  
Jirayu Somgumnerd ◽  
Viboon Tangwarodomnukun ◽  
Suksan Prombanpong

The polishing process plays an important role in the stainless steel cookware since an appearance is one of the prime quality criterions of the product. Typically, there are three sequential steps in the polishing process using abrasive flap wheel, sisal and cloth respectively. The abrasive flap wheel is the first step in the process which aims to rapidly create fine surface finish on the product. Thus, the selection of appropriate flap wheel as well as operating conditions in order to achieve surface finish within the required cycle time i.e. 12 seconds are the key success factor. Therefore, the experimental design is conducted and analyzed. It is found that there are four factors which influence the surface roughness: grits size of flap wheel, polishing time, velocity, and force. It can also be concluded from the analysis that the roughness is directly proportional to grit size and force but it is inversely proportional to velocity. In addition, the optimal condition for the case study can also be obtained.


2009 ◽  
Vol 404 ◽  
pp. 97-102
Author(s):  
Kui Liu ◽  
S.T. Ng ◽  
K.C. Shaw ◽  
G.C. Lim

Super polishing experiments were carried out to investigate the effects of polishing parameters on surface quality of stainless steel lens moulding inserts, and to optimize polishing conditions. Experimental results indicated that optical quality surface of stainless steel lens moulding inserts can be achieved through a two-step polishing process: fast polishing with a soft wood head and coarse diamond paste, and fine polishing with a nylon-covered steel ball head and fine diamond paste. A diameter of 20 mm stainless steel lens moulding insert with a surface roughness Ra of 7.6 nm has been successfully achieved using the two-step super polishing process.


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