本文選題：鋁合金　切入點：雙絲焊　出處：《焊接學報》2017年09期 　論文類型：期刊論文

【摘要】：文中將基于模糊隸屬度函數(shù)的模糊熵應用于鋁合金雙絲PMIG(pulse metal inert gas,PMIG)焊接過程穩(wěn)定性和質(zhì)量的評價,提出焊接電弧等效電阻模糊熵的概念.模糊熵具有對數(shù)據(jù)長度和相似容限r(nóng)值的依賴性小、相對一致性好、抗噪性強等特點,適用于存在強干擾的焊接過程參數(shù)分析.采用相同的電流電壓參數(shù)改變其它條件對3A21鋁合金進行了一系列雙絲PMIG焊接試驗研究,并計算其等效電阻模糊熵值.結(jié)果表明,焊接過程越不穩(wěn)定等效電阻的模糊熵值越大,且對穩(wěn)定性的區(qū)分度較大,為鋁合金雙絲PMIG焊接過程穩(wěn)定性和質(zhì)量評價提供了新的方法.
[Abstract]:In this paper, fuzzy entropy based on fuzzy membership function is applied to evaluate the stability and quality of aluminum alloy double-wire PMIG(pulse metal inert gas mix welding process. The concept of equivalent resistance fuzzy entropy of welding arc is put forward. The fuzzy entropy has the characteristics of little dependence on data length and similar tolerance r value, good relative consistency, strong noise resistance, etc. It is suitable for the analysis of welding process parameters with strong interference. A series of double-wire PMIG welding experiments were carried out on 3A21 aluminum alloy by changing other conditions with the same current and voltage parameters, and its equivalent resistance fuzzy entropy value was calculated. The results show that, The fuzzy entropy value of the unstable equivalent resistance in the welding process is larger, and the stability is more distinguished, which provides a new method for evaluating the stability and quality of aluminum alloy double-wire PMIG welding process.
【作者單位】： 南京理工大學材料科學與工程學院;
【基金】：國防科工局技術(shù)基礎(chǔ)科研項目(JSCG2017606B005)
【分類號】：TG457.14

【相似文獻】

相關(guān)期刊論文 前1條

1 王克鴻,徐越蘭,胡海;微控PMIG焊機的抗干擾措施研究[J];江蘇機械制造與自動化;1996年01期

相關(guān)會議論文 前1條

1 李筠;祝勇;;誤差分布類型的模糊熵判別方法[A];第七屆青年學術(shù)會議論文集[C];2005年

，

本文編號：1579065