Performance Evaluation of Electrical Discharge Abrasive Grinding Process using Grinding Ratio

2019 ◽  
Author(s):  
Pushpendra Singh ◽  
Avanish Kumar Dubey ◽  
Pankaj Kumar Shrivastava
Keyword(s):  
Performance Evaluation ◽  
Electrical Discharge ◽  
Grinding Process ◽  
Grinding Ratio

A New Technology to Machine Bimetal Band Saw

2016 ◽  
Vol 861 ◽  
pp. 9-13
Author(s):  
Hong Jian Dong ◽  
Qin He Zhang ◽  
Lei Tan ◽  
Guo Wei Liu ◽  
Tuo Dang Guo
Keyword(s):  
Electrical Discharge ◽  
High Speed ◽  
Electrical Discharge Machining ◽  
New Technology ◽  
High Speed Steel ◽  
Processing Route ◽  
Grinding Process ◽  
Wire Electrical Discharge Machining ◽  
Low Carbon ◽  
Band Saw

As a kind of commonly used tools, junior hacksaw plays an important role in our daily life. A new kind of bimetal band saw taken low carbon medium alloy steel X32 as the backing material and the high-speed steel M42 as the saw tooth material is developed. In this paper, a new method to machine the bimetal band saw with wire electrical discharge machining (WEDM) is introduced. The processing route for common tooth profile is calculated. The fixture with specific angles is designed with CAD software (proe5.0) and machined with 3D printing technology. The experiments show that bimetal band saw machined with WEDM method has better surface quality compared with that machined through the traditional grinding process. Without any burrs, the new bimetal band saw is more resistant to wear and has a longer service life.

Performance evaluation of micro-dimple formation on a Ti-6Al-4V alloy by using electrical discharge drilling

2018 ◽  
Vol 32 (9) ◽  
pp. 4365-4372 ◽  
Author(s):  
Sang Tae Jung ◽  
S. Thirumalai Kumaran ◽  
Chang Ping Li ◽  
Rendi Kurniawan ◽  
Tae Jo Ko
Keyword(s):  
Performance Evaluation ◽  
Electrical Discharge ◽  
Electrical Discharge Drilling ◽  
Micro Dimple

Grinding of Super-Alloys Using Metal-Bonded CBN Wheel

2012 ◽  
Vol 523-524 ◽  
pp. 143-148 ◽  
Author(s):  
Yuichi Hasuda ◽  
Asahi Handa ◽  
Yuki Kobori ◽  
Shinichi Kinebuchi ◽  
Toshiaki Furusawa ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Heat Conduction ◽  
Turbine Blades ◽  
High Strength ◽  
Grinding Process ◽  
Jet Engines ◽  
Wheel Wear ◽  
Cbn Wheel ◽  
Grinding Ratio ◽  
Lower Heat

Superalloys, used for turbine blades and jet engines for airplanes, have low heat conduction and high strength at elevated temperature. These properties make it very difficult to obtain effective grinding processes with high accuracy. Superalloys with fine performance under high temperature circumstances attract great attention to be used as the material for turbine blades. It has been expected to establish reliable efficient grinding of superalloys at the final grinding process. In this study, the influence of wheel wear, grinding ratio, and surface roughness, with the grinding process of superalloys, using metal bonded CBN wheel were carefully observed. Since superalloys have lower heat conduction and they cause a severe wheel wear, which leads to low grinding ratio. However, the high grinding ratio of about 800 and the stable figure of surface roughness of Rz=2μm were obtained when Co-base PWA647 and X45 were ground by using metal-bonded CBN wheel. Consequently, the Co-base superalloys perform rather well producing finer grinding process than the intensive Ni-base or Fe-base superalloys.

Performance Evaluation of Electro-Rheological Fluid and Its Applications to Micro-Parts Fine-Machining

2006 ◽  
Vol 315-316 ◽  
pp. 352-356
Author(s):  
Qiu Sheng Yan ◽  
F.F. Bi ◽  
N.Q. Wu
Keyword(s):  
Performance Evaluation ◽  
Electric Field ◽  
Electrorheological Fluid ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Aspheric Surface ◽  
Surface Machining ◽  
Abrasive Particles ◽  
Micro Parts ◽  
Er Fluid

This article first presents the performance of Electrorheological Fluid (ER fluid). Thus, a new-style machining technique based on ER effect to form a tiny grinding wheel is developed for superfine machining. By adding abrasive particles to ER, an array of stable chains of ER particles can be shaped when an electric field is applied and abrasive particles are fixed to these chains structure. When the tip of tool is rotated, the abrasive particles rotate with the flow and a superfine grinding process come into being. This process is expected to be applicable to the aspheric surface machining of micro miniature components made of optic glass or other hard-brittle materials.

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