Full Text:   <1538>

Summary:  <383>

CLC number: TG580.1+1

On-line Access: 2015-11-04

Received: 2014-10-21

Revision Accepted: 2015-03-14

Crosschecked: 2015-10-12

Cited: 3

Clicked: 1785

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Xiang-lei Zhang

http://orcid.org/0000-0002-0102-0463

Bin Yao

http://orcid.org/0000-0002-6756-9432

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Journal of Zhejiang University SCIENCE A 2015 Vol.16 No.11 P.874-884

http://doi.org/10.1631/jzus.A1400316


Modeling of a virtual grinding wheel based on random distribution of multi-grains and simulation of machine-process interaction


Author(s):  Xiang-lei Zhang, Bin Yao, Wei Feng, Zhi-huang Shen, Meng-meng Wang

Affiliation(s):  1Department of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, China; more

Corresponding email(s):   yaobin@xmu.edu.cn

Key Words:  Virtual grinding wheel, Random distribution, Interaction process, Precision grinding, Coupling simulation


Xiang-lei Zhang, Bin Yao, Wei Feng, Zhi-huang Shen, Meng-meng Wang. Modeling of a virtual grinding wheel based on random distribution of multi-grains and simulation of machine-process interaction[J]. Journal of Zhejiang University Science A, 2015, 16(11): 874-884.

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%A Wei Feng
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A1 - Xiang-lei Zhang
A1 - Bin Yao
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A1 - Meng-meng Wang
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Abstract: 
The interaction of the machine-process in grinding frequently brings unpredictable results to the quality of the products and processing stability. This paper presents a multi-grains grinding model to simulate the precision grinding process of cemented carbide inserts. The interaction between the grinding process and machine tool is then investigated based on the proposed grinding model. First, the real topography of the grinding wheel is simulated. Based on the assumption of spacing distribution of multi-grains and the virtual grid method, the hexahedron abrasive grains are randomly distributed on the surface of the virtual grinding wheel and the postures of abrasive grains are randomly allocated. Second, the grinding model is built by importing the virtual grinding wheel model into Deform-3D software, and the grinding force values are obtained by simulation. The validity of the proposed grinding model is verified by experiments. Then, the interaction coupling simulation of the machine tool structure and grinding process is built to investigate the interaction mechanism. The simulations reveal that remarkable interactive effects exist between the deformation of the grinding wheel of the machine tool and grinding force. The finite element method (FEM) coupling simulation method proposed in this paper can be used to predict the machine-process interaction.

In the article was described an interesting approach for modeling the grinding process, taking into account machine structure.

基于多颗磨粒随机分布的虚拟砂轮建模及机床-工艺交互仿真

目的:以硬质合金材料的精密磨削加工为对象,探索机床-工艺之间的交互作用,构建多颗磨粒磨削模型和机床模型,通过两个模型之间参数传递与交互耦合仿真,实现对机床-工艺交互作用的预测。
方法:1. 根据金刚石砂轮形貌构建磨粒位姿随机分布的虚拟砂轮,建立多颗磨粒磨削模型,对新模型的磨削力预测进行实验验证;2. 建立机床模型,特别是主轴-砂轮模型,并通过刚度试验;3. 将磨削模型的磨削力与机床模型的砂轮变形作为交互参数实现机床-工艺之间的交互作用 仿真。
结论:1. 构建的多颗磨粒模型可以实现磨削力预测;2. 构建的机床模型可以模拟机床结构刚度;3. 机床产生的变形与磨削力之间存在显著的交互作用,文中提出的有限元耦合仿真法可以实现预测机床-工艺的交互作用。

关键词:虚拟砂轮;随机分布;交互作用;精密磨削;耦合仿真

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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