Research on Electrolyte Formula and Processing Parameters for Electrochemical Machining of Special Stainless Steels

LI Bo, WEI Tongxue, WANG Gang, YANG Sen

doi:10.16577/j.issn.1001-1560.2022.0287

Materials Protection >

2022 , Vol. 55 >Issue 10: 130 - 134

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0287

Research on Electrolyte Formula and Processing Parameters for Electrochemical Machining of Special Stainless Steels

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(1.Engineering Training Center,Xi’an Polytechnic University,Xi’an 710600,China;2.School of Mechatronic Engineering,Xi’an Technological University,Xi’an 710021,China)

Received date: 2022-04-05

Revised date: 2022-05-09

Accepted date: 2022-05-31

Online published: 2023-12-23

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Abstract

In case of electrochemical machining of special stainless steels,a passivation film is easy to form on the machining surface,which can lead to machining difficulties.Meanwhile,the pitting corrosion is easy to occur on the non-machining surface,which can result in an reduction of surface quality.So,how to improve the quality of the machining surface has always been an urgent problem in aerospace and other mechanical industries.In this paper,the reasons for machining difficulties of this material were analyzed based on its composition and mirostructure.The composite electrolyte formula was developed with NaNO3 and NaClO3 as the base and some active ingredients as additives,the influences of the voltage and feed speed on material removal rate and lateral clearance were discussed.Finally,the electrolyte formula and appropriate process parameters for this kind of difficult-to-machine material were given.Results showed that in the composite electrolyte of 10% NaCl + 6% NaNO3 + 2% NaClO3,under the working condition of a voltage of 14 V,a feed speed of 3.0 mm/min and an electrolyte pressure of 0.6 MPa,the special stainless steel obtained good surface processing quality,and the surface roughness Ra was up to 0.38 μm.

Key words： surface quality; electrochemical machining; special stainless steel; electrolyte; process parameters

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LI Bo, WEI Tongxue, WANG Gang, YANG Sen . Research on Electrolyte Formula and Processing Parameters for Electrochemical Machining of Special Stainless Steels[J]. Materials Protection, 2022 , 55(10) : 130 -134 . DOI: 10.16577/j.issn.1001-1560.2022.0287

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