Experimental investigation on reduction of broaching forces by active external vibrations

IF 2.7 4区工程技术 Q2 ENGINEERING, MANUFACTURING

Machining Science and Technology Pub Date : 2021-05-04 DOI:10.1080/10910344.2021.1903921

Shen-Shun Ying, Shunqi Zhang, Lvgao Lin, Yangyu Wang, R. Schmidt

引用次数: 0

Abstract

Abstract Broaching is very efficient for machining complex-shaped slots in turbine disks made of high thermal resistant super-alloys. However, large cutting forces and high thermal flux lead to high tool wear. To reduce the broaching forces, this paper proposes a vibration assisted broaching system, including the main components of a hydraulic horizontal internal broaching machine, an electrohydraulic vibration exciter, a 2-dimensional valve and a control unit. A force measuring structure and vibration signal acquisition module are designed and integrated into the system. By changing the frequency of the active vibration, cutting forces are obtained and analyzed by fast Fourier transformation method. The experimental results show that through the additional imposed vibration, static and dynamic broaching forces are significantly reduced.

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主动外部振动降低拉削力的实验研究

摘要拉削是加工高耐热超级合金涡轮盘复杂形状槽的有效方法。然而，较大的切削力和较高的热通量会导致较高的刀具磨损。为了减小拉削力，本文提出了一种振动辅助拉削系统，该系统包括液压卧式内拉床的主要部件、电液激振器、二维阀和控制单元。设计了测力结构和振动信号采集模块，并将其集成到系统中。通过改变主动振动的频率，获得切削力，并用快速傅立叶变换方法进行分析。实验结果表明，通过外加振动，可以显著降低静态和动态拉削力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Machining Science and Technology 工程技术-材料科学：综合

CiteScore

5.70

自引率

3.70%

发文量

审稿时长

6 months

期刊介绍： Machining Science and Technology publishes original scientific and technical papers and review articles on topics related to traditional and nontraditional machining processes performed on all materials—metals and advanced alloys, polymers, ceramics, composites, and biomaterials. Topics covered include: -machining performance of all materials, including lightweight materials- coated and special cutting tools: design and machining performance evaluation- predictive models for machining performance and optimization, including machining dynamics- measurement and analysis of machined surfaces- sustainable machining: dry, near-dry, or Minimum Quantity Lubrication (MQL) and cryogenic machining processes precision and micro/nano machining- design and implementation of in-process sensors for monitoring and control of machining performance- surface integrity in machining processes, including detection and characterization of machining damage- new and advanced abrasive machining processes: design and performance analysis- cutting fluids and special coolants/lubricants- nontraditional and hybrid machining processes, including EDM, ECM, laser and plasma-assisted machining, waterjet and abrasive waterjet machining