Study on the machining characteristics of 316L steel by NHAP-PMEDM-milling method

doi:10.16731/j.cnki.1671-3133.2024.10.014

Abstract

Abstract: 316L stainless steel is used as an important material for making human implants.After researching and proposing a machining method called Nano Hydroxyapatite Powder Mixed Electrical Discharge Machining milling (NHAP-PMEDM-milling) is proposed to explore the trends and differences between two machining processes,NHAP-PMEDM-milling and Nano Hydroxyapatite Powder Mixed Electrical Discharge Machining(NHAP-PMEDM),to etch 316L stainless steel through the variation of factors and levels. The experimental results found that NHAP-PMEDM-milling can improve the material removal rate and reduce the electrode loss,surface roughness and contact angle. It proves that this machining method has research significance,and further explores the different machining characteristics and formation reasons presented under the positive and negative polarity of this machining method through the one-way test. The results of the polarity experiment showed that the positive polarity machining could realize higher material removal rate,while the negative polarity machining presented lower electrode loss rate,surface roughness and contact angle.

Key words: 316L stainless steel, Nano Hydroxyapatite (NHAP), Powder Mix Electrical Discharge Machining milling (PMEDM-milling), machining efficiency, surface quality

CLC Number:

TH16

ZHOU Xinyu, YANG Tingyi, BAI Xue, WANG Wei, ZHANG Xinyu, LI Li. Study on the machining characteristics of 316L steel by NHAP-PMEDM-milling method[J]. Modern Manufacturing Engineering, 2024, 529(10): 105-112.

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