阀套交叉孔磨粒流精密加工质量分析

doi:10.13229/j.cnki.jdxbgxb.20220075

Abstract

Abstract:

The abrasive flow precision machining method was used to deburr the cross hole of the valve sleeve. Through the large eddy simulation method and the reasonable sub-grid model， the numerical simulation analysis was carried out for the valve sleeve workpiece under the condition of side hole outflow. Under the condition of different flow velocities and viscosity， the effects of fluid strain rate， velocity vector， and wall shear force on the fillet radius of cross-hole edge， burr removal， and radial hole wall processing quality were analyzed. The experimental results show that the lower the fluid viscosity and the higher the speed， the larger the fillet radius of the edge of the cross hole， the higher the viscosity and the speed， and the higher the processing quality of the radial hole wall. To ensure that the edge of the cross hole has a small fillet， the low-speed and high viscosity fluid should be selected for the precision processing of the cross hole of the valve sleeve.

Key words: machinery manufacturing technology and equipment, abrasive flow precision machining, valve sleeve cross hole, burr removal, quality analysis

CLC Number:

TH161.1

Jing GUO,Lin GUI,Wei HOU,Jun-ye LI,Zhi-bao ZHU,Li-wei SUN. Quality analysis of abrasive flow precision machining of cross hole of valve sleeve[J].Journal of Jilin University(Engineering and Technology Edition), 2023, 53(12): 3367-3378.

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References 21

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黏度/ （Pa·s）	径向孔1		径向孔2		径向孔3
黏度/ （Pa·s）	点1	点2	点3	点4	点5	点6
0.045	1.054	0.946	1.047	1.018	1.060	1.145
0.1	0.968	0.843	0.949	0.882	0.960	1.002
0.15	0.934	0.807	0.924	0.829	0.904	0.957

黏度/ （Pa·s）	径向孔1		径向孔2		径向孔3
黏度/ （Pa·s）	左	右	左	右	左	右
0.045	1 694	33 763	1 433	21 277	4 409	16 188
0.1	206	36 776	5 487	29 907	10 860	19 326
0.15	908	37 778	5 882	33 249	13 815	21 571

速度/ （m·s^-1）	径向孔1		径向孔2		径向孔3
速度/ （m·s^-1）	点7	点8	点9	点10	点11	点12
3	4.86	1.85	4.46	2.59	3.86	3.79
4	6.54	2.51	6.03	3.60	5.32	5.16
5	8.19	3.17	7.64	4.63	6.84	6.64

速度/ （m·s^-1）	径向孔1		径向孔2		径向孔3
速度/ （m·s^-1）	点1	点2	点3	点4	点5	点6
3	4.77	4.10	4.84	4.30	4.76	4.97
4	7.04	6.15	7.15	8.58	7.15	7.46
5	9.42	8.49	9.73	9.13	9.89	10.18

速度/ （m·s^-1）	径向孔1		径向孔2		径向孔3
速度/ （m·s^-1）	左	右	左	右	左	右
3	1 077	16 363	3 347	12 622	6 738	9 071
4	1 240	23 407	2 936	16 624	7 446	11 273
5	1 442	30 422	1 139	19 754	6 463	12 373

Quality analysis of abrasive flow precision machining of cross hole of valve sleeve

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测量位置	粗糙度/μm	测量位置	粗糙度/μm
原件左	0.171	样件22#右	0.043
原件右	0.177	样件23#左	0.074
样件21#左	0.061	样件23#右	0.069
样件21#右	0.063	样件24#左	0.104
样件22#左	0.041	样件24#右	0.096

[1]	LI Jun-ye, HU Jing-lei, YANG Zhao-jun, ZHANG Xin-ming, ZHOU Zeng-wei. Effect of the size of discrete phase abrasive particles on the abrasive flow polishing quality of common rail pipe [J]. 吉林大学学报(工学版), 2018, 48(2): 492-499.
[2]	LI Jun-ye, QIAO Ze-min, YANG Zhao-jun, ZHANG Xin-ming. Influence of abrasive concentration on processing quality of abrasive flow in mesoscopic scale [J]. 吉林大学学报(工学版), 2017, 47(3): 837-843.
[3]	GUO Zhe-feng, TANG Wen-cheng. Stress analysis of cup-shaped parts in secondary deep drawing [J]. 吉林大学学报(工学版), 2016, 46(2): 494-499.
[4]	LI Song-sheng, ZHAO Yan-wei, GU Xi-ren. Application of improved FUP algorithm on hardware product quality analysis system [J]. 吉林大学学报(工学版), 2012, 42(增刊1): 251-254.

样件标号	速度/（m·s^-1）	黏度/（Pa·s）
21#	3	0.15
22#	5	0.15
23#	5	0.045
24#	3	0.045