Dry electro-contact discharge mutual-wear truing of micro diamond wheel V-tip for precision micro-grinding

Xie, Jianhe; Xie, Hailong; Luo, M.J.; Tan, T.W.; Li, P.

doi:10.1016/j.ijmachtools.2012.05.006

Cited by 39 publications

(13 citation statements)

References 17 publications

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“…(5) Taguchi method results showed, the larger-diameter diamond grinding wheel in terms of the following two best discharge parameters set, the material removal rate was the best combination of parameters discharge current 5 Amp, pulse time 30 µs, the feed rate of 2 mm / min, wire tension is 1 kgf, machining fluid flow rate 0.05 m / s. Grains protrusion amount compared with the discharge current 5 Amp, pulse time 20 µs, feed rate of 1 mm / min, thread tension 3 kgf, machining fluid flow rate 0.15 m / s. (6) In terms of the smaller-diameter diamond wheel to get the optimal combination of experimental parameters: optimum material removal rate parameter combination discharge current 5 Amp, pulse time 30 µs, feed rate of 0.5 mm / min, thread tension 5 kgf, machining fluid flow rate 0.1 m / s; abrasive protrusion amount of the discharge current 3 Amp, pulse time 30 µs, feed rate of 0.5 mm / min, thread tension 3 kgf, machining fluid flow rate 0.1 m / s.…”

Section: Discussionmentioning

confidence: 98%

“…It must be used and compatible with special anti-corrosion electrolyte [4,5]. The EDM can conduct contour-shaping, abrasive dressing, that is, high-precision trimming and adjusting the geometry of different discharge parameters to control the amount of grains protrusion [5][6]. Past, wire electrical discharge machining method for metal-based diamond dressing, the dressing process and processing liquid spray stroke would cause vibrations of copper.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Processing Characteristics Exploration of Metal Based Diamond Wheel of WEDM Dressing and Truing

Chow¹,

Liu²,

Lin³

et al. 2016

IJMSA

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This study aims to conduct experiments to explore metal based diamond wheel dressing and truing using developed wire electrical discharge (WEDM). The experimental outputs were analyzed to evaluate the effects of machining parameters on machining removal rate (MRR) and abrasive protrusion during dressing and truing caused by WEDM. During experiments, the wear and compensation issues could be overcome induced by the traditional EDM to improve the efficiency and precision as the WEDM was adopted. The experimental results showed as expected that the wire discharge grinding wheel dressing will lead the processing base not offset. In Taguchi experiment the maximum contribution was current and pulse time, large diameter grinding wheel to remove the highest rate of 11.78 mm3/min, while maximum protrusion amount only 33.12 µm, can reach the theoretical maximum protrusion amount.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Processing Characteristics Exploration of Metal Based Diamond Wheel of WEDM Dressing and Truing

Chow¹,

Liu²,

Lin³

et al. 2016

IJMSA

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show abstract

“…The shape accuracy of machined micro-structures on material surface depends on form accuracy of diamond grinding wheel micro tip [4]. Therefore, the investigation on V-tip truing accuracy is very significant.…”

Section: Introductionmentioning

confidence: 99%

Dry electrical discharge dressing and truing of diamond grinding wheel V-tip for micro-grinding

Lu¹,

Li²,

Xie³

et al. 2017

Proceedings of the 2017 5th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 20

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Abstract:The dry electrical discharge dressing and truing technology was proposed to realize the high efficient and precise truing of diamond grinding wheel in this paper. Firstly, the V-shape tip of diamond grinding wheel was formed using dry electro-contact discharge (ECD) truing along setting crossed V-shape interpolation path. Secondly, the influence of different pulse discharge parameters on V-tip angle and V-tip radius was investigated, respectively. Finally, the trued V-tip diamond wheel was employed to fabricate micro-groove and micro-pyramid array structures on the surfaces of two hard and brittle materials by micro-grinding machining. The results indicated that the optimal pulse discharge parameters were open-circuit voltage E of 5V, pulse frequency f of 4000Hz and duty cycle d c of 50%. The least V-tip angle error and radius of trued SD600 V-tip diamond grinding wheel was 1.1º and 33 µm, respectively. The micro-groove and micro-pyramid structures with regular shape and smooth surface can was effectively machined on the surfaces of difficult-to-cut materials.

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“…However, low efficiency of dressing and truing of metal-bonded diamond grinding wheel had been a bottleneck of industrialization. Therefore, the dry electro-contact discharge (ECD) dressing was developed along with ecological pollution-free to true micro-tip of diamond grinding wheel [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Dry Electrical Discharge Micro-Grinding of Tungsten Carbide

Lu¹,

Li²,

Xie³

et al. 2017

Proceedings of the Advances in Materials, Machinery, Electrical Engineering (AMMEE 2017)

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Abstract.A novel dry electrical discharge micro-grinding (EDMG) method was proposed to grind tungsten carbide in this paper. The V-shape tip truing experimental setup was built to realize the precision truing of diamond grinding wheel micro tip. The trued V-tip diamond wheels after mechanical truing and dry ECD truing were employed to fabricate micro-groove structures on the surface of tungsten carbide. The machining qualities and topographies of V-groove machined by dry EDMG under different pulse discharge parameters were comparatively investigated. The experimental results indicated that the dry EDMG could effectively improve the machining quality of micro-structured surface against dry mechanical grinding. However, the worn of micro tip of diamond grinding wheel in dry EDMG was faster than the one in dry mechanical grinding. The appropriate pulse discharge parameters were duty cycle dc=10%, open-circuit voltage E=15V and pulse frequency f=5000Hz in dry EDMG of tungsten carbide.

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Dry electro-contact discharge mutual-wear truing of micro diamond wheel V-tip for precision micro-grinding

Cited by 39 publications

References 17 publications

Processing Characteristics Exploration of Metal Based Diamond Wheel of WEDM Dressing and Truing

Processing Characteristics Exploration of Metal Based Diamond Wheel of WEDM Dressing and Truing

Dry electrical discharge dressing and truing of diamond grinding wheel V-tip for micro-grinding

Experimental Study on Dry Electrical Discharge Micro-Grinding of Tungsten Carbide

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