Microhole machining on precision CFRP components using electrical discharging machining

Soo Hyun Park, Gyuho Kim, Wonkyun Lee, Byung-Kwon Min, Seok Woo Lee, Tae Gon Kim

Research output: Contribution to conferencePaper

3 Citations (Scopus)

Abstract

Recently CFRP has been focused in a variety of new applications such as precision electrical components, surgical tools and biomedical devices because of its light-weight and excellent mechanical property. However, the form accuracies of the mechanical features generated by traditional CFRP fabrication methods are limited to meet the requirements of microcomponents. Furthermore, due to the difficulties in mechanical machining of CFRP in microscale, sometimes alternative material removal method is required in production of precision devices. Micro-electrical discharge machining (EDM) has been used for manufacturing of microholes and 3D micromolds of metal workpieces because of its machining accuracy and non-contact machining characteristics. In this study, we have implemented micro-EDM to the precision machining of CFRP substrates that are also a conductor. Proper EDM conditions for microhole drilling of CFRP for precision component fabrication with micro features were studied. Experiments on micro-EDM machinability were performed using a commercial micro-EDM tool. A variety of machining parameters were tried such as open circuit voltage and maximum current. Material removal rate (MRR) and tool wear ratio (TWR) were compared with respect to experimental conditions.

Original languageEnglish
Publication statusPublished - 2015 Jan 1
Event20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Denmark
Duration: 2015 Jul 192015 Jul 24

Other

Other20th International Conference on Composite Materials, ICCM 2015
CountryDenmark
CityCopenhagen
Period15/7/1915/7/24

Fingerprint

Electric discharge machining
Carbon fiber reinforced plastics
Machining
Fabrication
Machinability
Open circuit voltage
Drilling
Metals
Wear of materials
carbon fiber reinforced plastic
Mechanical properties
Substrates
Experiments

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Ceramics and Composites

Cite this

Park, S. H., Kim, G., Lee, W., Min, B-K., Lee, S. W., & Kim, T. G. (2015). Microhole machining on precision CFRP components using electrical discharging machining. Paper presented at 20th International Conference on Composite Materials, ICCM 2015, Copenhagen, Denmark.
Park, Soo Hyun ; Kim, Gyuho ; Lee, Wonkyun ; Min, Byung-Kwon ; Lee, Seok Woo ; Kim, Tae Gon. / Microhole machining on precision CFRP components using electrical discharging machining. Paper presented at 20th International Conference on Composite Materials, ICCM 2015, Copenhagen, Denmark.
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Park, SH, Kim, G, Lee, W, Min, B-K, Lee, SW & Kim, TG 2015, 'Microhole machining on precision CFRP components using electrical discharging machining' Paper presented at 20th International Conference on Composite Materials, ICCM 2015, Copenhagen, Denmark, 15/7/19 - 15/7/24, .

Microhole machining on precision CFRP components using electrical discharging machining. / Park, Soo Hyun; Kim, Gyuho; Lee, Wonkyun; Min, Byung-Kwon; Lee, Seok Woo; Kim, Tae Gon.

2015. Paper presented at 20th International Conference on Composite Materials, ICCM 2015, Copenhagen, Denmark.

Research output: Contribution to conferencePaper

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Park SH, Kim G, Lee W, Min B-K, Lee SW, Kim TG. Microhole machining on precision CFRP components using electrical discharging machining. 2015. Paper presented at 20th International Conference on Composite Materials, ICCM 2015, Copenhagen, Denmark.