Milling of Superhard Materials at an Ensured Rational State of the Technological Cutting System. Part 1

IF 0.3 Q4 METALLURGY & METALLURGICAL ENGINEERING
B. Ya. Mokritskii, A. V. Kosminin, A. G. Serebrennikova, P. A. Sablin
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引用次数: 0

Abstract—The demand for parts made from high-hardness materials (HRC 65) is steadily increasing. These materials are produced using special powder wire deposition technology. The machining of these parts encounters significant challenges. Grinding is not an option for several technical reasons, and metal cutting with end mills and face mills is required. Currently, there are no systematic guidelines available for this machining process, and there are no recommendations for maintaining optimal cutting system conditions. This work investigates face milling characteristics for such coatings using mechanically clamped carbide inserts. The aim of this work is to maintain optimal performance of the machine–fixture–tool–workpiece cutting system during milling of high-hardness parts to enhance the operational efficiency of the metal-cutting tool. Research objective. (1) To enhance the cutting tool performance. (2) To develop the criteria for assessing and controlling the current condition of the cutting system. (3) To predict the cutting system condition and maintain its optimal performance. Research techniques. Experimental analysis, computational modeling, and acoustic emission monitoring are used. Novelty. The scientific novelty of this work is (1) in establishing criteria for real-time assessment of the cutting system current state, and (2) a predictive methodology that enables both forecasting the cutting system state and controlling its operational parameters. Results. The feasibility of highly efficient milling of high-hardness materials while meeting the three critical requirements of machining productivity, surface finish quality and carbide insert life is shown. Conclusions. The criteria developed for the estimation of the cutting system state provide real-time process control while maintaining the required workpiece surface quality, machining productivity, and tool life.

Abstract Image

工艺切削系统在保证合理状态下的超硬材料铣削。第1部分
摘要:高硬度材料(hrc65)的零件需求在稳步增长。这些材料是使用特殊的粉末线沉积技术生产的。这些零件的加工遇到了重大的挑战。由于一些技术原因,研磨不是一种选择,并且需要用立铣刀和面铣刀进行金属切割。目前,对于这种加工过程没有系统的指导方针,也没有保持最佳切削系统条件的建议。这项工作研究了使用机械夹紧硬质合金刀片的这种涂层的面铣削特性。本工作的目的是在铣削高硬度零件时保持机床-夹具-刀具-工件切削系统的最佳性能,以提高金属切削刀具的工作效率。研究目标。(1)提高刀具性能。(2)制定评估和控制切割系统现状的标准。(3)预测切割系统状态并保持其最佳性能。研究技术。采用实验分析、计算建模和声发射监测。新鲜事物。这项工作的科学新颖之处在于:(1)建立了实时评估切割系统当前状态的标准,(2)一种预测方法,既可以预测切割系统状态,又可以控制其运行参数。结果。说明了在满足加工生产率、表面光洁度和硬质合金刀片寿命三个关键要求的同时,高效铣削高硬度材料的可行性。结论。用于估计切削系统状态的标准提供实时过程控制,同时保持所需的工件表面质量,加工生产率和刀具寿命。
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来源期刊
Russian Metallurgy (Metally)
Russian Metallurgy (Metally) METALLURGY & METALLURGICAL ENGINEERING-
CiteScore
0.70
自引率
25.00%
发文量
140
期刊介绍: Russian Metallurgy (Metally)  publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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