Effect of longitudinal−torsional vibration in ultrasonic-assisted drilling

IF 4.7 2区材料科学 Q2 ENGINEERING, MANUFACTURING Materials and Manufacturing Processes Pub Date : 2017-04-26 DOI:10.1080/10426914.2016.1198027

S. Amini, M. Soleimani, H. Paktinat, Mohammad Lotfi

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引用次数: 66

Abstract

ABSTRACT In general, drilling of aeronautical materials is faced with some difficulties. To improve this process, a variety of methods have been presented by researchers. One of these methods is ultrasonic-assisted drilling (UAD). In this study, performance of longitudinal−torsional (L-T) vibration in UAD of Al 7075-T6 with HSS tool is investigated. Accordingly, a vibration tool with ability of producing L-T vibration was designed. After modal analysis and achievement of desired resonance frequency, it was fabricated and some experimental tests were conducted. A dynamometer with six degrees of freedom was utilized to measure torque and thrust force during the cutting process. As a result, it was revealed that this kind of vibration significantly reduces cutting forces compared with the conventional drilling (CD). Furthermore, this reduction was clarified by investigation of generated chips and tool rake angle. Moreover, effect of ultrasonic vibration on drill skidding and surface quality has been studied.

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超声辅助钻井中纵向扭转振动的影响

总的来说，航空材料的钻削加工面临着一些困难。为了改进这一过程，研究人员提出了各种方法。其中一种方法是超声辅助钻井(UAD)。在本研究中，研究了Al 7075-T6刀具的纵向-扭转(L-T)振动特性。据此，设计了一种能产生L-T振动的振动工具。在进行模态分析并达到期望的共振频率后，进行了结构的制作和实验测试。采用六自由度测功机测量切削过程中的扭矩和推力。结果表明，与常规钻孔(CD)相比，这种振动显著降低了切削力。此外，通过对产生的切屑和刀具前倾角的研究，阐明了这种减少。此外，还研究了超声振动对钻头打滑和表面质量的影响。

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来源期刊

Materials and Manufacturing Processes 工程技术-材料科学：综合

CiteScore

9.00

自引率

22.90%

发文量

132

审稿时长

3.4 months

期刊介绍： Materials and Manufacturing Processes deals with issues that result in better utilization of raw materials and energy, integration of design and manufacturing activities requiring the invention of suitable new manufacturing processes and techniques, unmanned production dependent on efficient and reliable control of various processes including intelligent processing, introduction of new materials in industrial production necessitating new manufacturing process technology, and more. Information is offered in various formats, including research articles, letter reports, review articles, conference papers, applied research, book and conference reviews, and entire issues devoted to symposia. All submitted manuscripts are subject to initial appraisal by the Editors, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. All peer review is single blind and submission is online via ScholarOne Manuscripts.