Experimental Study on a Micro-Scale Shaft Grinding Tool

2011 ◽  
Vol 121-126 ◽  
pp. 157-161
Author(s):  
Jun Cheng ◽  
Ya Dong Gong ◽  
Yue Ming Liu ◽  
Jian Yu Yang
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Particle Size ◽  
Surface Quality ◽  
Micro Scale ◽  
Grinding Tool ◽  
Micro Machine

This paper presents a novel micro shaft grinding tool is fabricated by cold sprayed with CBN grains, and a micro-grinding experiment is carried out to study micro grinding principle of the fabricated tools. The manufacturing is carried out on a desktop micro machine developed by NEU. Influences caused by particle size on surface quality has been discussed, it has been tested that low surface roughness could be achieved on 3000 particle size of micro shaft grinding tool, the roughness accomplished in the experiment is about 0.086μm.

A Micro Grinding Experimental Study on AISI 1020 Steel

2011 ◽  
Vol 325 ◽  
pp. 557-562
Author(s):  
Jun Cheng ◽  
Ya Dong Gong ◽  
Yue Ming Liu
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Particle Size ◽  
Surface Quality ◽  
Grinding Tool ◽  
Micro Machine

This paper presents a micro-grinding experiment on AISI 1020 steel to study micro grinding principle. A novel micro shaft grinding tool is fabricated by cold sprayed with CBN grains, the manufacturing is carried out on a desktop micro machine developed by NEU. Influences caused by particle size on surface quality has been discussed, it has been tested that low surface roughness could be achieved on 3000 particle size of micro shaft grinding tool, the roughness of AISI 1020 steel accomplished in the experiment is about 0.086 μm.

Experimental Study on Micro-Grinding Process of Titanium Alloy Using Electro-Hydro-Dynamic Spray With Nanofluid and Compressed Air

2015 ◽  
Author(s):  
Pil-Ho Lee ◽  
Jung Soo Nam ◽  
Jung Sub Kim ◽  
Sang Won Lee
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Titanium Alloy ◽  
Surface Quality ◽  
Ground Surface ◽  
Experimental Results ◽  
Compressed Air ◽  
Grinding Process ◽  
Grinding Forces ◽  
Micro Scale

In this paper, the micro-scale grinding processes of titanium alloy (Ti-6Al-4V) using electro-hydro-dynamic (EHD) spray with nanofluid and compressed air are experimentally investigated. In the experiments, specific micro-grinding forces and surface roughness of the ground workpiece are quantitatively analyzed as a function of nanofluid’s concentration and size of nanoparticles. In addition, the ground surface quality is qualitatively investigated by comparing the optical microscopic images. The experimental results show the effectiveness of EHD spraying with nanofluid and compressed air for reducing the specific micro-grinding forces and enhancing ground surface quality.

Research on Ultra Precision Mirror Machining Technology for Aluminum Alloy Mobile Phone Shell

2013 ◽  
Vol 797 ◽  
pp. 385-389
Author(s):  
Jia Liang Guan ◽  
Xiao Hui Zhang ◽  
Xin Qiang Ma ◽  
Zhi Wei Wang ◽  
Li Li Zhu
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Particle Size ◽  
Aluminum Alloy ◽  
Mobile Phone ◽  
Surface Quality ◽  
Abrasive Particle ◽  
Ultra Precision ◽  
Main Factors ◽  
Polishing Pressure

In this paper, the ultra-precision mirror polishing technology was adopted for mirror processing experimental study of Aluminum Alloy mobile phone shell. The experiments show that: polishing pressure, Grinding disc speed, the texture and hardness of polishing pad and abrasive particle size are the main factors to affect the surface quality. Through to optimize these parameters matching combination, can effectively improve the surface quality and reduce the surface roughness and obtain surface roughness is Ra0.026μm.

A Study on Surface Quality of GaN with CMP Polishing Process

2011 ◽  
Vol 291-294 ◽  
pp. 1764-1767
Author(s):  
Wei Li ◽  
Ming Ming Ma ◽  
Bin Hu
Keyword(s):  
Surface Roughness ◽  
Particle Size ◽  
Gallium Nitride ◽  
Surface Quality ◽  
Chemical Reaction ◽  
Experimental Result ◽  
Precision Machining ◽  
Polishing Process

This paper introduced a polishing process for planarization of gallium nitride (GaN) wafer by polishing slurry that is made up by the chemical reaction with H2O2 solution and iron. Some different polishing parameters in the polishing process has been analyzed, which affect the surface quality of wafers, such as slurry particle size, polishing times, polishing slurry etc., and trying to improve the polishing process by optimization of the polishing parameters. The experimental result showed that this polishing method has an effect on the surface quality of GaN wafers, finally, the efficient and precision machining with surface roughness of GaN wafers of Ra0.81 nm has been gained by the CMP polishing process.

Experimental Study on WEDM Machining of PCD and PCBN Compacts

2015 ◽  
Vol 645-646 ◽  
pp. 52-57 ◽  
Author(s):  
Man Cang Song ◽  
Jian Lei Zhang ◽  
Chao Yu ◽  
Min Jie Wang ◽  
Chong Liu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Particle Size ◽  
Superhard Material ◽  
Cutting Tools ◽  
Interface Layer ◽  
Processing Quality ◽  
Material Layer

Some typical kinds of PCD and PCBN compacts are selected to be machined by WEDM, and a series of processing tests are taken. After machining, the surface roughness of cutting section, the processing quality of cobalt-rich interface layer and the edge of superhard material layer are measured by surface profiler and 3D microscope. The results show that processing quality is affected by superhard particle size and concentration greatly, and better processing quality can be obtained after several cutting of WEDM. The minimum sharpening allowance of PCD cutting tools can be controlled within 4~15μm after WEDM, and within 10μm for PCBN BNX20, while BZN6000 needs larger follow-up workload of sharpening.

Experimental Study of Interface Shearing between Calcareous Sand and Steel Plate Considering Surface Roughness and Particle Size

2021 ◽  
Vol 107 ◽  
pp. 102490
Author(s):  
Hai-lei Kou ◽  
Wen-zhou Diao ◽  
Wang-chun Zhang ◽  
Jing-bin Zheng ◽  
Pengpeng Ni ◽  
...  
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Particle Size ◽  
Steel Plate ◽  
Calcareous Sand ◽  
Interface Shearing

Experimental Study on Cutting Performance in Micro-Grinding Hard Brittle Materials

2012 ◽  
Vol 565 ◽  
pp. 541-545
Author(s):  
Ya Dong Gong ◽  
Jun Cheng ◽  
Zhi Zheng Wu ◽  
Chao Wang ◽  
Jin Feng Zhang
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Surface Quality ◽  
Feed Rate ◽  
Brittle Materials ◽  
Soda Lime ◽  
Cutting Performance ◽  
Soda Lime Glass ◽  
Grinding Speed

The process of micro-grinding on hard brittle glass is shown in this paper, micro-grinding equipments are designed by tools of electroplated diamond, fz(feed rate), ap (grinding depth), vg(Grinding speed) in micro-grinding brittle materials and their effects to surface quality have been discussed. It has been demonstrated that low surface roughness could be achieved by high vg and low fz. The roughness of Soda-lime glass accomplished by fz:100μm/s, ap:30μm, vg:120000rpm in the experiment is about 78nm.

Laser Milling of Al2O3 Ceramic Based on Deteriorative Layer Controlled

2009 ◽  
Vol 83-86 ◽  
pp. 1-6
Author(s):  
Xu Yue Wang ◽  
Wen Ji Xu ◽  
Ming Kai Lei ◽  
Dong Ming Guo
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Surface Quality ◽  
Laser Scanning ◽  
Experimental Results ◽  
New Method ◽  
Ceramic Surface ◽  
Al2o3 Ceramic ◽  
Milling Parameters ◽  
Laser Milling

A new method for laser milling of Al2O3 ceramic based on deteriorative layer controlled is presented in which no assistant gas was used during the laser milling. The new milling technology is developed by means of laser scanning of ceramic surface and forming a deteriorative layer directly. Laser milling parameters are determined through crystal phase’s analysis of the deteriorative layer. The laser milling depth, surface quality, and milling mechanism with different milling parameters were studied systematically on an Nd: YAG CNC laser and multi-layer laser milling experiments were also conducted with optimized processes on the surface of Al2O3 ceramic workpiece. Therefore, the practical experimental results are that each depth of layer milling is between 0.35-0.5 mm and the surface roughness of laser milling reaches to Ra 2-3.2μm. The experimental study has thus provided deeper understanding on laser milling technology for Al2O3 ceramic both in theory and application.

Experimental study on fabrication and evaluation of a micro-scale shaft grinding tool

2014 ◽  
Vol 28 (3) ◽  
pp. 1027-1037 ◽  
Author(s):  
Y. D. Gong ◽  
X. L. Wen ◽  
J. Cheng ◽  
G. Q. Yin ◽  
C. Wang
Keyword(s):  
Experimental Study ◽  
Micro Scale ◽  
Grinding Tool

scholarly journals Experimental Study on the Performance of Hydraulic Vibration Assisted Broaching (HVAB) Based on Piezoelectric Sensors

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2417
Author(s):  
Zhen Meng ◽  
Jing Ni ◽  
Yu Shi ◽  
Chuan-Yu Wu ◽  
Xiang-Qi Liu
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Cutting Force ◽  
Surface Quality ◽  
Piezoelectric Sensors ◽  
Vibration Frequencies ◽  
Line Measurement ◽  
On Line ◽  
Flank Face

In order to improve the keyway broaching process and verify the feasibility of vibration-assisted broaching process, an experimental study on a novel hydraulic vibration assisted broaching (HVAB) system with double-valve electro-hydraulic exciter (DVEHE) is proposed in this paper. The performances of HVAB at different excitation frequencies were compared from three aspects: (a) the cutting force under the different vibration frequencies, (b) the surface roughness of the workpiece, and (c) the flank face wear of the tool. For precision on-line measurement of larger broaching forces, four piezoelectric sensors were fixed on the broaching machine. The experimental results show that HVAB can effectively improve the performance of the broaching process, approximately reduce the broaching force by as much as 9.7% compared to conventional broaching (CB) and improve the surface quality of workpiece. Some explanations are offered to support the observations.

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