锻压技术

锯片齿形参数对锯齿锯剪性能的影响

英文标题：Influence of tooth profile parameters for saw blade on saw shear performance of sawtooth

作者：王文豪双远华王琛陈建勋陈晨

单位：太原科技大学

分类号：TH113

出版年,卷(期):页码：2020,45(7):132-139

摘要：

为了研究不同锯片齿形参数对锯齿锯剪性能的影响，基于ABAQUS有限元平台，建立了锯剪机锯齿的有限元模型。对比了两种不同齿形在锯剪过程中的锯剪性能，并采用单因素控制法研究了不同齿前角、齿后角和齿根圆角半径对锯剪性能的影响，同时进行相关实验验证。研究得出：模拟与实验结果吻合较好，二者误差均在合理范围内，验证了有限元模型的可靠性；弧背齿形更适合作热锯剪机的齿形；在锯剪过程中，随着齿前角的增大，单齿锯切力和单齿剪切力逐渐减小；随着齿后角增大，单齿锯切力和单齿剪切力几乎无变化；并在所研究范围内得出其齿前角为0°~2°、齿后角为8°~12°、齿根圆角半径为2.6 mm时，锯剪性能较好。

In order to study the influences of different tooth profile parameters for saw blade on the saw shear performance of sawtooth, based on the finite element platform ABAQUS, the finite element model of sawtooth in saw shear machine was established. Then, compared with saw shear performances of two different tooth profiles during the saw shear process, the influences of different tooth rake angle, tooth back angle and radius of tooth root fillet on the saw shear performance were studied by the single factor control method, and relevant verification experiment was conducted at the same time. The results show that the simulation and experiment results are in good agreement, and their errors are within a reasonable range to verify the reliability of finite element model. Furthermore, the arc tooth profile is more suitable for the tooth profile of hot saw shear machine. During the saw shear process, with the increasing of tooth rake angle, the sawing force and the shearing force of single tooth gradually decrease, and with the increasing of tooth back angle, the sawing force and the shearing force of single tooth hardly change. In addition, it is concluded that the saw shear performance are better when the tooth rake angle is 0°-2°, the tooth back angle is 8°-12°, and the radius of tooth root fillet is 2.6 mm in the study range.

基金项目：

山西省留学基金（2017-084）

王文豪（1994-），男，硕士研究生 E-mail：996029108@qq.com 通讯作者：双远华（1962-），男，博士，教授 E-mail：yhshuang@tyust.edu.cn

参考文献：

[1]陈秀群. 双偏心轴回转式飞剪机动态性能分析及剪切过程有限元分析[D].沈阳：东北大学,2010.

Chen X Q.Dynamic Feature and Shearing Process Finite Element Analysis of Double Eccentric Shaft Rotary Flying Shear[D]. Shenyang: Northeastern University,2010.

[2]马立峰, 黄庆学,李颖,等.新型滚切剪空间剪切机构优化数学模型的建立及应用[J].四川大学学报:工程科学版,2008, 40(2):170-174.

Ma L F, Huang Q X, Li Y, et al. Establishment and application of mathematical model on spatial shear mechanism optimization of newtype steel rolling shear.[J].Journal of Sichuan University: Engineering Science Edition, 2008, 40(2):170-174.

[3]徐善敏. 宝钢5 m宽厚板轧机剪切线设备与剪切质量的相关因素[J].宝钢技术,2005,(2):42-45.

Xu S M. Interrelated factors between shearing line equipment and shearing quality of Baosteel 5 m heavy plate mill[J]. Baosteel Technology,2005,(2):42-45.

[4]邹家祥, 赵广禄, 董昉. 热切锯片的失效及锯齿的力学分析[J]. 北京钢铁学院学报, 1984,(4):47-59.

Zhou J X, Zhao G L, Dong F. The fealure of hot saw dise and the mechanical anlysis of saw tooth[J].Journal of Beijing Iron and Steel Institute, 1984,(4):47-59.

[5]Wang X L, Yin Z J, Li Y L. The stress analysis of different circular saw structures during cutting[J]. Advanced Materials Research, 2011, 228-229:471-476.

[6]Mamalis A G, Schulze R, Tonshof H K. The slotting of blocks of hardwork with a diamond segmented circular saw blade[J]. Industrial Diamond Review, 1979,(39):356-365.

[7]张士强, 李自芹, 刘晓雯,等. 金属锯片齿形参数优化[J]. 机械设计与制造, 2012,(11):192-194.

Zhang S Q, Li Z Q, Liu X W, et al. Optimization of the tooth profile parameters of metal saw[J].Machinery Design ＆ Manufacture, 2012,(11):192-194.

[8]谭心, 黄虎, 陈琳. 圆锯片锯切H型钢过程分析及齿形参数优化[J]. 制造业自动化, 2014,(12):69-72.

Tan X, Huang H, Chen L. The analysis of the circular saw blade sawing process of Hsteel and optimization of parameters of tooth profile[J].Manufacturing Automation, 2014,(12):69-72.

[9]刘培锷, 吴国彦. 圆盘剪切机剪切力和轴向力的实验研究[J]. 重型机械, 1994,(5):22-26.

Liu P E, Wu G Y. Experimental study on shear force and axial force of disk shears[J].Heavy Machinery,1994,(5):22-26.

[10]常军然, 付群峰. 圆盘剪剪切力计算与计算机仿真研究[J]. 机械工程师, 2008,(8):104-105.

Chang J R, Fu Q F. Study on shear force calculation and computer simulation of disk[J].Mechanical Engineer, 2008,(8):104-105.

[11]刘龙飞, 胡少华,卢立伟. 切削速度对AZ31镁合金高速切削切屑形成的影响[J]. 稀有金属,2016,40(7):654-659.

Liu L F, Hu S H, Lu L W. Sawtooth chip of AZ31 magnesium alloy under highspeed cutting and different cutting velocities[J].Chinese Journal of Rare Metal, 2016,40(7):654-659.

[12]聂静良. 上剪刃几何参数及剪切速度对剪切过程影响的研究[D]. 太原：太原科技大学,2015.

Nie J L. Study on the Influence of Geometric Parameters of Upper Cutting Edge and Shear Velocity on the Shearing Process[D]. Taiyuan: Taiyuan University of Science and Technology,2015.

[13]潘星宇，滕文博，雷元,等.基于ABAQUS的导电切削GCr15切削温度研究[J].工具技术, 2019, 53(6):33-36.

Pan X Y, Teng W B, Lei Y, et al. Research on cutting temperature of EMH GCr15 based on ABAQUS[J].Tool Engineering, 2019, 53(6):33-36.

[14]刘战强, 吴继华, 史振宇,等. 金属切削变形本构方程的研究[J]. 工具技术, 2008, 42(3):3-9.

Liu Z Q, Wu J H, Shi Z Y, et al. Stateoftheart of constitutive equations in metal cutting operations[J].Tool Engineering, 2008, 42(3):3-9.

[15]Johnson G R, Cook W H. Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures [J]. Engineering Fracture Mechanics, 1985, 21(1):31-48.

[16]吴燕. 基于ABAQUS的钛合金高速切削仿真平台的开发[D].沈阳：沈阳理工大学,2016.

Wu Y. Based on the Abaqus Titanium Alloy High Speed Cutting Simulation Platform of Development[D]. Shenyang: Shenyang Ligong University,2016.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】