Transactions of Materials and Heat Treatment

Title：Experiment and finite element simulation on sawtooth wear under hot saw condition

Authors： Wang Chen Shuang Yuanhua Chen Jianxun Zhang Yutian Li Chao Wang Wenhao

Unit： Taiyuan University of Science and Technology

KeyWords： sawtooth wear hot saw machine Usui wear model sawing line speed single tooth sawing depth experiment temperature

ClassificationCode：TF31

year,vol(issue):pagenumber：2020,45(9):194-200

Abstract：

Sawtooth wear during hot sawing process has an important effect on sawing quality and machining efficiency. Firstly, the sawing process was analyzed according to the hypothesis linear motion hypothesis. Then, based on the Usui model, a sawtooth wear simulation model was established and verified by experiment, and the influences of different process parameters (sawing line speed, single tooth sawing depth and experiment temperature) on the wear of sawtooth rake face were simulated. Finally, by constructing the expression of wear sensitivity, the influences of different process parameters on the wear amount were discussed. The results show that the crescent crater wear depth on the sawtooth rake face increases with the increasing of the sawing line speed and the single tooth sawing depth and decreases with the increasing of the experiment temperature, and the distance from the deepest point of crescent crater to the tip of tooth decreases with the increasing of the sawng line speed and increases with the increasing of the single tooth sawing depth and the experiment temperature. Thus, the order of factors affecting the sawtooth wear is experiment temperature, sawing line speed and single tooth sawing depth.

Funds：

山西省重点研发计划项目（201903D121049）；山西省科技重大专项项目（20191102009）

王琛（1986-），男，博士研究生 E-mail：wangc1215@163.com 通讯作者：陈建勋（1966-），男，学士，正高级工程师 E-mail：cjx@tyust.edu.cn

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