金字塔型砂带磨粒排布对表面磨抛形貌的影响

李孝辉; 田凤杰; 韩晓; 李论

doi:10.13394/j.cnki.jgszz.2022.0113

金字塔型砂带磨粒排布对表面磨抛形貌的影响

doi: 10.13394/j.cnki.jgszz.2022.0113

李孝辉^1,,
田凤杰^1, ,,
韩晓¹,
李论²

1.
沈阳理工大学机械工程学院，沈阳110159
2.
中国科学院沈阳自动化研究所，沈阳110016

基金项目: 省教育厅重点攻关项目(LJKZZ20220036）；国家自然科学基金-辽宁省联合基金（U1908230）。

详细信息

通讯作者:
田凤杰，男，1973年生，教授。主要研究方向：精密与超精密加工，机器人自动化磨抛加工。E-mail：tfj9311123@yeah.net

中图分类号: ATH122；TG58
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- 被引次数: 0
出版历程
- 收稿日期: 2022-07-20
- 修回日期: 2022-08-22
- 录用日期: 2022-10-08
- 刊出日期: 2023-06-20

Effect of abrasive particle arrangement on surface morphology ground with pyramid belt

LI Xiaohui^1
,,
TIAN Fengjie^{1
, ,},
HAN Xiao¹,
LI Lun²

1.
School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110159, China
2.
Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China

摘要

摘要: 为研究金字塔型砂带磨粒排布对磨抛加工工件表面形貌的影响，建立金字塔型砂带磨抛加工的数学模型及解析算法，采用Abaqus软件进行粗糙度值的模拟仿真预测，通过机器人磨抛系统平台进行金字塔型砂带磨抛实验并检测加工后工件的表面形貌，与仿真预测值进行对比。结果表明：粗糙度仿真预测值与实际测量值变化趋势相同，吻合度良好，误差在0.03 μm以内，最大误差率为16.6%。仿真模型与实验过程保持一致，可以用于预测金字塔型砂带磨抛加工的表面粗糙度。
- 金字塔型砂带 /
- 磨粒有序排布 /
- Abaqus仿真 /
- 粗糙度 /
- 表面形貌
Abstract: To study the influence of grain arrangement on the surface profile of the workpiece, a mathematical model and its corresponding analytical algorithm of pyramidal abrasive belt grinding were established. The roughness value was simulated and predicted with Abaqus software. Grinding tests were carried out on the robot grinding system platform with pyramidal abrasive belt, and the surface profile were inspected and then compared with the simulation. The results show that the simulated roughness and the measured values have similar variation trend with good consistency, where the error is within 0.03 μm and the maximum error rate is 16.6%. The theoretical simulation and test results remain consistent, indicating that the model could be used to predict the surface roughness of workpiece ground with pyramidal abrasive belt.
- pyramid abrasive belt /
- orderly arrangement of abrasive grains /
- Abaqus simulation /
- roughness /
- surface topography

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图 1 金字塔型砂带微观平铺图

Figure 1. Microscopic tiling of pyramid abrasive belt

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图 2 金字塔型砂带磨粒排布示意图

Figure 2. Schematic diagram of grain arrangement of pyramid abrasive belt

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图 3 矩阵排布

Figure 3. Matrix arrangement

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图 4 斜矩阵排布

Figure 4. Slanted matrix arrangement

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图 5 金字塔砂带磨粒位置坐标

Figure 5. Position coordinates of pyramidal abrasive belt grain

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图 6 单磨粒运动轨迹示意

Figure 6. Single abrasive particle grinding and polishing motion trajectory

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图 7 相邻两磨粒运动轨迹

Figure 7. Motion trajectory of two adjacent abrasive particles

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图 8 砂带磨削运动过程

Figure 8. Abrasive belt grinding motion process

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图 9 金字塔砂带相邻磨粒间距

Figure 9. Spacing between adjacent abrasive grains of pyramid abrasive belt

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图 10 金字塔型砂带物理模型

Figure 10. Physical model of pyramid abrasive belt

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图 11 仿真工件磨抛表面形貌

Figure 11. Surface morphology of simulated workpiece grinding

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图 12 表面轮廓位移曲线

Figure 12. Surface profile displacement curve

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图 13 工件表面照片

Figure 13. Photo of the workpiece surface

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图 14 粗糙度轮廓仪下工件的表面形貌

Figure 14. Surface morphology of workpiece under roughness profiler

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图 15 工件表面实际轮廓曲线

Figure 15. Actual contour curve of workpiece surface

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表 1 磨料和工件的力学性能

Table 1. Mechanical properties of abrasives and workpieces

材料性质	取值
材料性质	磨料	工件
密度 ρ / （g·cm⁻³）	3.96	4.68
弹性模量 E / GPa	370.0	115.8
热导率 K / (W·m⁻¹·K⁻¹)	29.3	7.5
泊松比 μ	0.22	0.29
热膨胀系数 β / (m·K⁻¹)	8.6	10.0
比热容 c / (J·kg⁻¹·K ⁻¹)	600	605

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表 2 TC17 Johnson-Cook本构模型参数^[14]

Table 2. TC17 Johnson-Cook constitutive model parameters^[14]

参数	数值
A / MPa	1 100
B / MPa	590
C	0.015 2
N	0.41
M	0.833
T_r / ℃	25
T_m / ℃	1 675

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表 3 仿真结果

Table 3. Simulation result

序号	砂带粒度号	磨抛力 F /N	R_a-仿真 / μm
1	P150	1.0	0.14
2	P150	1.5	0.15
3	P150	2.0	0.18
4	P150	2.5	0.20
5	P150	3.0	0.24
6	P220	2.0	0.14
7	P320	2.0	0.12
8	P600	2.0	0.09
9	P1000	2.0	0.05

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表 4 表面粗糙度仿真预测值与实验测量值

Table 4. Surface roughness simulation prediction value and experimental measurement value

序号	砂带粒度号	磨抛力 F / N	R_a-仿真 / μm	R_a-实验 / μm	误差率 ξ/%
1	P150	1.0	0.14	0.15	6.7
2	P150	1.5	0.15	0.17	11.8
3	P150	2.0	0.18	0.21	14.3
4	P150	2.5	0.20	0.23	13.0
5	P150	3.0	0.24	0.26	7.7
6	P220	2.0	0.14	0.16	12.5
7	P320	2.0	0.12	0.11	9.1
8	P600	2.0	0.09	0.08	12.5
9	P1000	2.0	0.05	0.06	16.6

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