Study on processing characteristics of constrained abrasive jet polishing

2014 ◽  
Author(s):  
Ruzhong Yan ◽  
Zhentong Liu ◽  
He Zhu
Keyword(s):  
Abrasive Jet Polishing

Material Removal and Application by Chemical Impact Reaction in Nano-Abrasive Jet Polishing

2013 ◽  
Vol 631-632 ◽  
pp. 550-555
Author(s):  
Wen Qiang Peng ◽  
Sheng Yi Li ◽  
Chao Liang Guan ◽  
Xin Min Shen
Keyword(s):  
Material Removal ◽  
Abrasive Particle ◽  
Precision Machining ◽  
Optical Surface ◽  
Polishing Process ◽  
Abrasive Particles ◽  
Mechanical Process ◽  
Abrasive Jet Polishing ◽  
Ultra Precision ◽  
Machining Properties

Material removed by mechanical process inevitably causes surface or subsurface damage containing cracks, plastic scratch, residual stress or dislocations. In nano-abrasive jet polishing (NAJP) the material is removed by chemical impact reaction. The chemical impact reaction is validated by contrast experiment with traditional lap polishing process in which the material is mainly removed through mechanical process. Experiment results show the dependence of the abrasive particles on the choice of materials. Even if the abrasive particle and the workpiece are composed of similar components, the machining properties are remarkably different due to slight differences in their physical properties or crystallography etc. Plastic scratches on the sample which was polished by the traditional mechanical process are completely removed by NAJP process, and the surface root-square-mean roughness has decreased from 1.403nm to 0.611nm. The NAJP process will become a promising method for ultra precision machining method for ultrasmooth optical surface.

scholarly journals Application of taguchi method to investigation of optimal abrasive jet polishing parameters

2019 ◽  
Vol 17 (6) ◽  
pp. 1
Author(s):  
LOC PHAM HUU
Keyword(s):  
Taguchi Method ◽  
Analysis Of Variance ◽  
Surface Finish ◽  
Optical Glass ◽  
Impact Angle ◽  
Taguchi’S Method ◽  
Optimal Parameters ◽  
Abrasive Grain ◽  
Abrasive Jet Polishing ◽  
Pump Pressure

The surface finish of N-BK7 optical glass is improved by abrasive jet polishing (AJP) process. Taguchi’s method is employed to investigate optimal AJP parameters. The important parameters that influence the N-BK7 surface finish are determined by Analysis of variance (ANOVA). The optimal parameters are found based on Taguchi’s experimental results and signal noise ratio (S/N). These optimal parameters are: polishing time of 45 min, pump pressure of 5 kgf/cm2, standoff distance of 12 mm, abrasive grain type of Al2O3, abrasive grain concentration of 20 %, and impact angle of 40°. The surface finish (Ra) of the N-BK7 is improved significantly from 0.350 µm to 0.018 µm.

Abrasive jet polishing on SKD61 mold steel using SiC coated with Wax

2008 ◽  
Vol 208 (1-3) ◽  
pp. 318-329 ◽  
Author(s):  
B.H. Yan ◽  
F.C. Tsai ◽  
L.W. Sun ◽  
R.T. Hsu
Keyword(s):  
Abrasive Jet Polishing

Surface Polishing of Metal Mold Using Wax-Coated Abrasive SiC Particles

2010 ◽  
Vol 154-155 ◽  
pp. 1813-1816
Author(s):  
Shie Chen Yang ◽  
Tsuo Fei Mao ◽  
Hsi Chuan Huang ◽  
Feng Che Tsai ◽  
Jiuan Hung Ke
Keyword(s):  
Surface Roughness ◽  
Experimental Results ◽  
Mold Surface ◽  
Metal Mold ◽  
Surface Polishing ◽  
Sic Particles ◽  
Abrasive Jet Polishing ◽  
Good Improvement ◽  
Sic Particle

This study introduces an Abrasive Jet Polishing (AJP) technique using wax-coated abrasive SiC particle to improve the polishing quality of mold surface. The experimental results showed that the surface roughness of EDM machined mold cavity improved by 82% (from 4.23 μmRa to 0.76μmRa) within 90 minutes. Moreover, the parting surface roughness improved by 94.7% (from 1.14μmRa to 0.06μmRa). We show that employing the abrasive jet polishing technique with wax-coated SiC particles, not only the mold surface roughness got a good improvement, but also significantly shorten the polishing time.

scholarly journals Utilization of Secondary Jet in Cavitation Peening and Cavitation Abrasive Jet Polishing

Micromachines ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 86
Author(s):  
Hao Pang ◽  
Gracious Ngaile
Keyword(s):  
Material Removal ◽  
Processing Time ◽  
Removal Rate ◽  
Incidence Angle ◽  
Bubble Collapse ◽  
Hardness Distribution ◽  
Workpiece Surface ◽  
Abrasive Jet Polishing ◽  
Surface Irregularities ◽  
Cavitating Jet

The cavitation peening (CP) and cavitation abrasive jet polishing (CAJP) processes employ a cavitating jet to harden the surface or remove surface irregularities. However, a zero incidence angle between the jet and the surface limits the efficiency of these two processes. This limitation can be improved by introducing a secondary jet. The secondary jet interacts with the main jet, carrying bubbles to the proximity of the workpiece surface and aligning the disordered bubble collapse events. Through characterizing the treated surface of AL6061 in terms of the hardness distribution and surface roughness, it was found out that the secondary jet can increase the hardening intensity by 10%, whereas the material removal rate within a localized region increased by 66%. In addition, employing multiple secondary jets can create a patched pattern of hardness distribution. Another finding is that the hardening effect of the cavitation increases with the processing time at first and is then saturated.

A review on recent advances in machining methods based on abrasive jet polishing (AJP)

2016 ◽  
Vol 90 (1-4) ◽  
pp. 785-799 ◽  
Author(s):  
Fengjun Chen ◽  
Xiangliang Miao ◽  
Yu Tang ◽  
Shaohui Yin
Keyword(s):  
Recent Advances ◽  
Abrasive Jet Polishing
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