Internal Finishing of Aluminium Tube with Sintered Magnetic Abrasive
Internal Finishing of Aluminium Tube with Sintered Magnetic Abrasive
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铝管的烧结磁力磨料内表面精加工
DOI：
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发表时间：
2016
影响因子：
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通讯作者：
J. S. Gill
中科院分区：
文献类型：
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作者：
Narinder Singh;H. Kumar;J. S. Gill
：在过去的几年里，加工金属和合金的更硬和复杂的形状的发展迅速增长。对于这类材料，传统的刃口刀具加工既困难又不经济，表面光洁度也很差。鉴于这一问题的严重性，近年来发展了磁力研磨抛光、磁力研磨流动加工(MAFM)、磁浮加工(MFM)和磁力研磨(MAM)、磁流变加工(MRM)、化学机械抛光(CMP)等新型非常规精密加工技术。其中广泛用于金属(黑色金属和有色金属)以及非金属(陶瓷)部件的高质量抛光。近年来，磁浮抛光、磁流变加工、电解磁力抛光等磁力研磨技术已经得到了广泛的应用，但磁力研磨技术的发展仍存在诸多问题，全球范围内正在不断努力解决这一问题。在MAF方法中，利用磁场产生切削力来处理已加工零件的表面。磁场有助于形成柔性的磁性磨具刷子，用于表面的抛光。研磨力可通过磁场控制，在研磨过程中产生较低的表面温度。磁性磨料不易获得。到目前为止，关于替代磁性磨料开发的研究报道很少。用于铝管材MAF内精加工的烧结磁性磨料。在考虑转速(Rpm)、磨损量、磁极与工件间隙等不同变量的情况下，计算了PISF。烧结磁性磨料的制备难度大、耗时长。在425转/分，磨料用量为6克时，效果最好。本病例PISF值为84%。
: There has been a rapid growth in the development of harder and complex shapes to machine metals and alloys during the last few years. Conventional edged tool machining is difficult and uneconomical for such materials and degree of surface finish attainable is poor. In view of the seriousness of this problem, recently new non-conventional fine machining processes like Magnetic Abrasive Polishing, Magnetic Abrasive Flow Machining (MAFM), Magnetic Float Machining (MFM) and Magnetic Abrasive Machining (MAM), Magneto – Rheological Machining (MRM), Chemo-Mechanical Polishing (CMP) have been developed. Among widely used for obtaining quality finish on metallic (ferrous and non ferrous) as well as non metallic (ceramics) components. MAF process has been recently used in its variant forms such as Magnetic float polishing, Magneto-rheological machining, Electrolytic magnetic polishing but the problem of development of magnetic abrasive powders is still present and efforts are in continuous progress at global to remove this problem. In the MAF method, a magnetic field is used to generate cutting force to treat the surface of a machined part. The magnetic field helps to form a flexible magnetic abrasives brush for finishing of surface. Finishing force can be controlled with magnetic field and a low surface temperature is generated during finishing operations. Magnetic abrasives are not easily available. Very few studies have been reported till date on the development of alternative magnetic abrasives. sintered magnetic abrasives for internal finishing of aluminium tubes using MAF process. PISF is calculated considering different variables like speed (rpm) , quantity of abrasive and gap of magnetic pole and work piece. Preparation of sintered magnetic abrasive was difficult and time consuming. The best result came at 425 rpm and quantity of abrasive used 6 gm. PISF value obtained in present case was 84 % .