高熵合金微尺度磨削力实验研究

doi:10.12068/j.issn.1005-3026.2024.12.008

摘要/Abstract

摘要：

通过分析磨屑形成机理，建立了高熵合金微磨削力的理论模型，并推导了磨削力公式，通过正交和单因素实验，探究了磨削参数、磨粒粒度、微磨具表面涂层对磨削力的影响规律，对比了不同种类高熵合金的磨削力，分析了磨粒粒度、加工参数及力对磨屑形貌的影响.结果表明：对磨削力影响最大的是进给速度，影响最小的是磨削深度；与磨削力呈正相关的是进给速度和磨削深度，负相关的是磨削速度；使用500#磨粒微磨具所受微磨削力较大，且产生的磨屑呈小节距锯齿状；涂层微磨具所受切向磨削力比未涂层的微磨具小，而法向磨削力大；增加Al含量和加入Mo元素会导致微磨削力增大.最后比较了理论模型计算值与实验值，验证了微磨削力模型的准确性.

关键词: 高熵合金, 微尺度磨削, 磨削力, 磨屑

Abstract:

By analyzing the formation mechanism of grinding chips， a theoretical model of micro‑grinding force of high‑entropy alloys was established， and the formula of grinding force was derived. Through orthogonal and single‑factor experiments， the influencing laws of grinding parameters， particle sizes and surface coating of micro‑grinding tools on the grinding force were explored， as well as the grinding force comparison of different high‑entropy alloys. The effects of grain size， processing parameters and grinding force on the morphology of grinding chips were analyzed. The results showed that the feed speed has the greatest effect on grinding force and the least effect on grinding depth. With the increase of feed speed and grinding depth， the grinding force gradually increases， and the grinding force gradually decreases with the increase of grinding speed. The micro‑grinding force of the 500# abrasive particle is larger， and the grinding chips produced are bar spacing sawteeth. The tangential grinding force of the coated microabrades is smaller than that of the uncoated microabrades， while the normal grinding force is larger. The increase of Al content and the addition of Mo element will lead to the increase of the micro‑grinding force. Finally， the calculated values of the theoretical model were compared with the experimental values， and the accuracy of the micro‑grinding force model was verified.

Key words: high?entropy alloy, micro?scale grinding, grinding force, abrasive debris

中图分类号:

TH 161

温雪龙, 桂宏泽, 巩亚东, 王蒙山. 高熵合金微尺度磨削力实验研究[J]. 东北大学学报（自然科学版）, 2024, 45(12): 1734-1743.

Xue-long WEN, Hong-ze GUI, Ya-dong GONG, Meng-shan WANG. Experimental Study on the Micro-scale Grinding Force of High-Entropy Alloys[J]. Journal of Northeastern University(Natural Science), 2024, 45(12): 1734-1743.

图/表 27

图1 单颗磨粒与工件表面间的相互作用

Fig.1 Interaction between a single abrasive particle and the workpiece surface

图2 最小切削厚度效应（a）—ap<amin；（b）—ap≈amin；（c）—ap>amin.

Fig.2 Minimum cutting thickness effect

图3 500#微磨具产生的磨屑

Fig.3 500# microabrasives produced abrasive debris

图4 200#微磨具产生的磨屑

Fig.4 200# microabrasives produced abrasive debris

图5 不同磨削速度下的磨屑形貌（a）—vs=0.942 m/s；（b）—vs=1.885 m/s；（c）—vs=2.827 m/s.

Fig.5 Debris morphology at different grinding speeds

图6 磨削速度对磨屑节距的影响

Fig.6 Effect of grinding speed on chip pitch

图7 磨削过程示意图

Fig.7 Schematic diagram of grinding process

图8 球形磨粒的磨削力建模（a）—单个磨粒相互作用模型；（b）—球形磨粒结构.

Fig.8 Modeling of grinding force for sphere abrasive

图9 圆锥形磨粒的磨削力建模（a）—磨粒的形状和结构；（b）—成屑交互模型；（c）—耕犁交互模型.

Fig.9 Grinding force modeling of conical grinding particles

图10 JX-1A精密磨削磨床

Fig.10 JX-1A precison grinder

图11 磨削力信号测试系统

Fig.11 Grinding force signal testing system

图12 微磨具及其表面形貌图（a）—微磨具；（b）—500#磨粒形貌；（c）—200#磨粒形貌；（d）—500#涂层形貌.

Fig.12 Microabrasive tool topography

表1 正交实验方案

Table 1 Orthogonal experiment scheme

因素	水平
因素	1	2	3	4	5
v_s/（m·s^-1）	0.942	1.414	1.885	2.356	2.827
v_w/（μm·s^-1）	20	40	70	100	200
a_p/μm	3	6	9	12	15

表2 单因素微磨削实验方案

Table 2 Single factor micro‑grinding test scheme

0.942，1.414，

1.885，2.356，2.827

1.414

20，40，70，100，200

1.414

3，6，9，

12，15

图13 微磨削力极差图

Fig.13 Micro‑grinding force range diagram

图14 微磨削力方差图

Fig.14 Micro‑grinding force variance diagram

图15 磨削速度对磨削力的影响

Fig.15 Effect of grinding speed on grinding force

图16 磨削深度对磨削力的影响

Fig.16 Effect of grinding depth on grinding force

图17 进给速度对磨削力的影响

Fig.17 Effect of feed speed on grinding force

图18 不同进给速度下涂层对磨削力的影响

Fig.18 Effect of coating on grinding force at different feed speeds

图19 磨削速度改变时涂层对磨削力的影响

Fig.19 Effect of coating on grinding force when grinding speed changes

图20 不同材料对磨削力的影响

Fig.20 Influence of different materials on grinding force

图21 磨削速度改变时粒度对磨削力的影响

Fig.21 Influence of grain size on grinding force when grinding speed changes

图22 进给速度改变时粒度对磨削力的影响

Fig.22 Influence of grain size on grinding force when feed speed changes

图23 不同粒度下磨削力对磨屑的影响

Fig.23 Influence of grinding force on grinding chips at different particle sizes

图24 不同磨削速度下磨削力对磨屑的影响

Fig.24 Influence of grinding force on grinding chips at different grinding speeds

图25 不同磨削速度下实验值与理论值的对比

Fig.25 Comparison of experimental and theoretical values at different grinding speeds

参考文献 16

1	Arif Z U， Khalid M Y， Ur Rehman E，et al.A review on laser cladding of high‑entropy alloys，their recent trends and potential applications［J］.Journal of Manufacturing Processes，2021，68：225-273.
2	Li P， Chen S Y， Jin T，et al.Machining behaviors of glass‐ceramics in multi‑step high：speed grinding：grinding parameter effects and optimization［J］.Ceramics International，2021，47（4）：4659-4673.
3	Adibi H， Jamaati F， Rahimi A.Analytical simulation of grinding forces based on the micro‑mechanisms of cutting between grain‑workpiece［J］.The International Journal of Advanced Manufacturing Technology，2022，119（7）：4781-4801.
4	Gao Q， Guo G Y， Wang Q Z.Study on micro‑grinding mechanism and surface quality of high‑volume fraction SiC_p/Al composites［J］.Journal of Mechanical Science and Technology，2021，35（7）：2885-2894.
5	Zhou Y G， Wen X L， Yin G Q，et al.Study on theoretical model of roughness and wear of the microgrinding tool in microgrinding nickel‑based single crystal superalloy［J］.Journal of the Brazilian Society of Mechanical Sciences and Engineering，2021，43（6）：317.
6	Zhao X， Gong Y D， Liang G Q，et al.Face grinding surface quality of high volume fraction SiC_p/Al composite materials［J］.Chinese Journal of Mechanical Engineering，2021，34（1）：3.
7	Sun Y， Su Z P， Gong Y D，et al.Analytical and experimental study on micro‑grinding surface‑generated mechanism of DD5 single‑crystal superalloy using micro‑diamond pencil grinding tool［J］.Archives of Civil and Mechanical Engineering，2021，21：1-22.
8	蒋放，王西彬，刘志兵.微细切削的尺度效应研究［J］.工具技术，2004（8）：6-9.
	Jiang Fang， Wang Xi‑bin， Liu Zhi‑bing.Study on scale effect of micro cutting ［J］.Tool Technology，2004（8）：6-9.
9	周泽华.金属切削原理［M］.上海：上海科学技术出版社，1984：220.
	Zhou Ze‑hua.Principles of metal cutting［M］.Shanghai：Shanghai Science and Technology Press，1984：220.
10	Yuan Z J， Zhou M， Dong S.Effect of diamond tool sharpness on minimum cutting thickness and cutting surface integrity in ultraprecision machining［J］.Journal of Materials Processing Technology，1996，62（4）：327-330.
11	Son S M， Lim H S， Ahn J H.Effects of the friction coefficient on the minimum cutting thickness in micro cutting［J］.International Journal of Machine Tools and Manufacture，2005，45（4）：529-535.
12	Son S M， Lim H S， Ahn J H.The effect of vibration cutting on minimum cutting thickness［J］.International Journal of Machine Tools and Manufacture，2006，46（15）：2066-2072.
13	Park H W.Development of micro‑grinding mechanics and machine tools［D］.Atlanta：Georgia Institute of Technology，2008.
14	Liu K， Li X P.Ductile cutting of tungsten carbide［J］.Journal of Materials Processing Technology，2001，113（1）：348-354.
15	Goddard J， Wilman H.A theory of friction and wear during the abrasion of metals［J］.Wear，1962，5（2）：114-135.
16	Cheng J， Gong Y D.Experimental study of surface generation and force modeling in micro‑grinding of single crystal silicon considering crystallographic effects［J］.International Journal of Machine Tools and Manufacture，2014，77：1-15.

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