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Study on Dry WEDMed Surface Quality of Mould Steel

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Abstract:

This paper studies the surface quality of tool steel with high-speed wire electrical discharge machining (WEDM) method, which is conducted in gas to improve the accuracy of finish cut, and compares the surface quality in atmosphere and in emulsion dielectric. Experiment results showed that WEDM in atmosphere offers advantages such as better straightness and higher material removal rate. With the growth of wire winding speed, the removal rate and straightness error will increase significantly either in atmosphere or in liquid. Along with the feed increasing, the discharge gap lengthes decrease successively under the both media conditions, and the straightness is obviously improved in atmosphere. Regardless of the use of atmosphere or emulsion, an optimum feed will exist, which makes the roughness the lowest and the removal rate the highest.

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Periodical:

Key Engineering Materials (Volumes 375-376)

Pages:

416-420

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.375-376.416

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Online since:

March 2008

Authors:

Tong Wang, Xin Fu Zhang, Xue Fang Zhao

Keywords:

Dry WEDM, Finish Cut, Wire Winding Speed, Worktable Feed

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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References

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[1] [2] [3] [4] [5] Atmosphere Emulsion Removal rate Vw [mm3. s -1] 0. 36 0. 86 1. 75 Feed vf [mm. min -1].

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0. 5.

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[1] 1. 5.

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[2] 2. 5.

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[3] [1] 2 3 Roughness Ra/µm Atmosphere Emulsion 0. 36 0. 86 1. 75 Feed vf [mm. min -1] Roughness Ra [µm].

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