Wire Electrical Discharge Machining – High Speed VS Abrasive Waterjet - A Case Study

Abstract:

Technological advancement, on the one hand, made Electrical Discharge Machining (EDM) much faster. One example of that is the presence of Wire Electrical Discharge Machining – High Speed (WEDM-HS) machine, which makes the material removal rate as high as 80 . On the other hand, it also made Abrasive Waterjet (AWJ) achieve much better quality surface and tighter tolerance. As a result, these two types of machining process have converged to the point where they can complement one another quite nicely in selected applications. However, it does not mean user may pick any one for their applications. The proper selection not only decreases the manufacturing costs but also achieves better quality. This paper focuses on comparing WEDM-HS with AWJ by actually cutting a special designed sample. Through comparison from several aspects which include dimension precision, surface roughness, cost, cutting time and surface damage, a proper selection guidance for regular user has been provided.

• Periodical: Advanced Materials Research (Volumes 189-193)
• Pages: 4245-4255
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.189-193.4245
• Online since: February 2011
• Authors: Shi Jin Zhang, Yu Qiang Wu, Yan Li Wang
• Keywords: Abrasive Water Jet (AWJ), Comparison, Cost, Cutting Time, Dimension Precision, Surface Damage, Surface Roughness (SR), WEDM-HS

References

[1] Information on http: /en. wikipedia. org/wiki/Electrical_discharge_machining.

[2] P. Fallböhmer, T. Altan, H. -K. Tönshoff and T. Nakagawa, Survey of the die and mold manufacturing industry - practices in Germany, Japan, and the United States, Journal of Materials Processing Technology Volume 59, Issues 1-2, Pages 158-168.

DOI: 10.1016/0924-0136(96)02297-2

[3] Information on http: /www. wisegeek. com/what-is-edm. htm.

[4] Information on http: /blog. sina. com. cn/s/blog_4dbd2f740100fywn. html.

[5] S. Zhang, X. Li and Y. Gu, Air flow exploration of abrasive feed tube, Acta Mechanica Sinica, Vol. 25 (6), 2009, Pages 400-408.

DOI: 10.1007/s10409-009-0290-2

[6] Koelsch, James R., Waterjet vs. EDM, Manufacturing Engineering, Vol. 135, No. 4, Oct. (2005).

[7] Information on www. omax. com.

[8] Information on http: /wirecut-co. com/capabilities. asp.

[9] Information on http: /www. cmwin. com/CBPResource/StageHtmlPage/A272/A2722008310207421. htm.

[10] Information on http: /blog. sina. com. cn/s/blog_4dbd2f740100fywn. html.