|
摘要：
|
|
采用实验测试和有限元方法对热态锯切过程进行分析，研究不同工艺参数对锯切性能的影响规律并探究规律背后的原因。根据锯齿直线运动假设对锯切过程进行分析，得出不同工艺参数对单齿锯切力、锯齿度、锯齿前刀面温度的影响规律。结果表明：单齿锯切力随着锯切线速度、预热温度的增加而下降，随着锯切深度的增加而升高；锯齿频率f随着锯切线速度、预热温度、单齿锯切深度的增加而增加；锯齿度GS随着锯切线速度、预热温度的增加而降低，随着单齿锯切深度的增加呈上升趋势；锯齿前刀面温度峰值随着单齿锯切线速度的增加而降低，且温度峰值点距齿尖的距离减小，随着单齿锯切深度、预热温度的增加而升高，且温度峰值点距齿尖的距离增大。
|
|
The hot sawing process was analyzed by the experimental test and finite element method, the influence laws of different process parameters on the sawing performance were studied, and the reasons for the influence laws were explored. Based on the assumption of sawtooth linear motion, the sawing process was analyzed, and the influence laws of different process parameters on single tooth sawing force, sawtooth degree and rake face temperature of sawtooth were obtained. The results show that the single tooth sawing force decreases with the increasing of sawing line speed and preheating temperature and increases with the increasing of sawing depth, the sawing tooth frequency f increases with the increasing of sawing line speed, preheating temperature and single tooth sawing depth, and the sawtooth degree GS decreases with the increasing of sawing line speed and preheating temperature and increases with the increasing of single tooth sawing depth. Furthermore, the peak temperature of rake face for sawtooth decreases with the increasing of single tooth sawing line speed, and the distance of the temperature peak point from the tooth tip decreases. However, the peak temperature of rake face for sawtooth increases with the increasing of single tooth sawing depth and preheating temperature, and the distance of the temperature peak point from the tooth tip increases.
|
|
基金项目：
|
|
山西省重点研发计划项目（201903D121049）
|
|
作者简介：
|
|
王琛（1986-），男，博士研究生，E-mail：wangc1215@163.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]文庆明, 程志彦. 轧钢机械设备[M]. 北京：人民邮电出版社, 2006.
Wen Q M, Cheng Z Y. Steel Rolling Machinery[M]. Beijing: Post & Telecom Press,2006.
[2]林学杰. 圆锯机锯切金属过程力能参数计算研究[D]. 长沙：中南大学, 2012.
Lin X J. Calculation Research on Force and Energy Parameters of the Metal Sawing Process of Circular Sawing Machine [D]. Changsha: Central South University, 2012.
[3]唐进元, 林学杰, 唐健杰, 等. 基于DEFORM-3D的金属锯切过程力能仿真研究[J]. 制造技术与机床, 2012,(8): 99-103.
Tang J Y, Lin X J, Tang J J, et al. Force theory simulation research of metal cutting process based on DEFORM-3D software [J]. Manufacturing Technology & Machine Tool, 2012,(8): 99-103.
[4]王翌硕. 不锈钢材料锯切加工切削规律的研究[D]. 唐山：河北联合大学, 2015.
Wang Y S. Research on the Cutting Laws of the Stainless Steel Sawing Processing [D]. Tangshan: Hebei United University,2015.
[5]李同进, 臧勇, 陶登奎, 等. 金属锯机锯片齿形参数的设计分析[J]. 北京科技大学学报, 2002, 24(1):69-71.
Li T J, Zang Y, Tao D K, et al. Analysis on the tooth shape of the saw blade [J]. Journal of University of Science and Technology Beijing, 2002, 24(1):69-71.
[6]罗蒙. 金属切削过程中毛刺形成机理及控制方法的研究[D].上海：上海交通大学, 2007.
Luo M. Mechanism and Control Methods of Burr Formation in Metal Cutting Process [D]. Shanghai: Shanghai Jiao Tong University, 2007.
[7]朱其萍，徐红玉，刘飞，等. 冷滚打花键表面粗糙度加工参数敏感性研究 [J].锻压技术，2019,44(11):86-90.
Zhu Q P，Xu H Y，Liu F，et al. Sensitivity study on surface roughness processing parameters for cold rollbeating spline [J]. Forging & Stamping Technology，2019,44(11):86-90.
[8]吴斌斌，林建平，马治军，等. AlSi镀层硼钢板热冲压模具磨损失效分析[J].锻压技术，2018,43(1):110-116.
Wu B B，Lin J P，Ma Z J，et al. Wear failure analysis on hot stamping die of boron steel sheet with AlSi coating [J]. Forging & Stamping Technology，2018,43(1):110-116.
[9]丁建生,翟开华,刘蔺勋. 切削加工对45钢表面组织特性的影响[J]. 热加工工艺, 2011,40(18):54-56.
Ding J S, Zhai K H, Liu Y X. Influence of cutting working on surface microstructure characteristics of 45 steel[J]. Hot Working Technology, 2011,40(18):54-56.
[10]沈祥芬, 邹家祥, 臧勇, 等. 锯切断面毛刺生成机理的研究[J]. 冶金设备, 1992, (1):16-19.
Shen X F, Zou J X, Zang Y, et al. Study on the fin formation in sawed section [J]. Metallurgical Equipment, 1992, (1):16-19.
[11]Upadhyay V, Jain P K, Mehta N K. Machinability studies in hot machining of Ti-6Al-4V alloy[J]. Advanced Materials Research,2013, 622:361-365.
[12]Sofuolu M A, akr F H, Gürgen S, et al. Numerical investigation of hot ultrasonic assisted turning of aviation alloys[J]. Journal of the Brazilian Society of Mechanical Sciences and Engineering,2018, 40(4): 231.
[13]Niesony P, Grzesik W, Jarosz K, et al. FEMbased optimization of machining operations of aerospace parts made of Inconel 718 superalloy[J]. Procedia CIRP, 2018, 77: 570-573.
[14]Rajaei A, Hallstedt B, Broeckmann C, et al. Numerical prediction of the microstructure and stress evolution during surface grinding of AISI 52100 (DIN 100Cr6)[J]. Integrating Materials and Manufacturing Innovation, 2018, 7(4): 202-213.
|
|
服务与反馈：
|
|
【本网站尚未开通全文下载服务】【加入收藏】
|
|
|
|
