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个人信息Personal Information

教授

博士生导师

硕士生导师

任职 : 精密与特种加工教育部重点实验室 副主任; 中国光整加工专业委员会 主任委员; 中国生产工程学会 常务理事; 中国国际磨粒加工技术学会(ICAT)常务理事

性别:男

毕业院校:东北工学院

学位:博士

所在单位:机械工程学院

学科:机械制造及其自动化

办公地点:机械工程学院知方楼7185室

联系方式:0411-84706138 gaohang@dlut.edu.cn

电子邮箱:gaohang@dlut.edu.cn

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螺旋面磨料流光整加工仿真与试验

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发表时间:2022-10-06

发表刊物:浙江大学学报 工学版

所属单位:机械工程学院

期号:5

页面范围:920-926

ISSN号:1008-973X

摘要:Abrasive flow machining (AFM) was proposed to finish screw surface aiming at the problem of high capital cost and undefined surface quality on the finishing process of complex screw surface made of difficult-to-cut materials. The optimal fixture which is able to obtain uniform screw surface finish was selected based on the contrastive analyses of flow field distributions in two kinds of ' fixture-screw' simulation models with and without helical guide blocks. On the basis, contrast tests were carried out to study the screw surface finish by using AFM and belt grinding process, and the research results show that the static pressure of abrasive media decreases along its flow direction, and the contour line of static pressure is along the width direction of screw surface; the backflow in the inlet/outlet regions is eliminated with helical guide blocks, namely, the uniformity of flow field is improved. After AFM process, the screw surface roughness value decreases from 10.5 μm to 0.45 μm, the minimum diameter of screw surface is basically constant, and the screw surface quality and processing efficiency by using AFM process are better than that of manual belt grinding. © 2016, Zhejiang University Press. All right reserved.

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