• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2020, Vol. 56 ›› Issue (16): 71-77.doi: 10.3901/JME.2020.16.071

• 材料科学与工程 • 上一篇    下一篇

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聚合物板料热辅助单点渐进成形方法

杨志云, 陈飞   

  1. 上海交通大学塑性成形技术与装备研究院 上海 200030
  • 收稿日期:2019-09-18 修回日期:2020-02-27 出版日期:2020-08-20 发布日期:2020-10-19
  • 通讯作者: 陈飞(通信作者),男,1982年出生,博士,特别研究员,博士研究生导师。主要研究方向为金属热变形过程微观组织演变与预报、高分子材料柔性化加工方法与装备。E-mail:feichen@sjtu.edu.cn
  • 作者简介:杨志云,男,1988年出生,博士研究生。主要研究方向为高分子材料柔性化加工方法与装备。E-mail:yangzhiyun@sjtu.edu.cn
  • 基金资助:
    上海市浦江人才计划(18PJD019)和上海市优秀学术带头人计划(19XD1401900)资助项目。

Study on the Heating-assisted Single Point Incremental Forming of Polymers

YANG Zhiyun, CHEN Fei   

  1. Institute of Forming Technology and Equipment, Shanghai Jiao Tong University, Shanghai 200030
  • Received:2019-09-18 Revised:2020-02-27 Online:2020-08-20 Published:2020-10-19

摘要: 聚合物广泛应用于汽车、航空、医疗等领域,传统的聚合物加工方法只适用于产品的大批量生产,并不适用于产品的柔性化定制。常温条件下单点渐进成形方法难以满足聚合物板料复杂形状高成形性要求,为了实现聚合物的小批量、柔性化制造,得到成形精度、表面质量更好的产品,开发了桌面级热辅助单点渐进成形设备,首次提出了聚合物热辅助渐进成形方法。针对四种不同的高分子聚合物:聚碳酸酯(Polycarbonate,PC),聚醚醚酮(Polyetheretherketone,PEEK),聚甲基丙烯酸甲酯(Polymethylmethacrylate,PMMA),聚氯乙烯(Polyvinylchloride,PVC),通过螺旋刀具轨迹成形出金字塔形状,并对成形过程中的温度、成形力、几何精度及表面质量进行了分析。结果表明,热辅助渐进成形方法提高了聚合物板料的成形性,适用于个性化定制,柔性化成形聚合物板料零件。

关键词: 聚合物, 热辅助, 单点渐进成形, 成形性, 几何精度

Abstract: Polymers are widely used in automotive, aerospace and medical fields. Traditional polymer processing techniques are only suitable for mass production, and cannot be used for flexible customization of products. The existing single point incremental forming method at room temperature is still difficult to meet high formability requirements for complex shape. In order to realize small batch and flexible manufacturing of polymers, obtain products with better forming accuracy and surface quality. A novel heating-assisted single point incremental forming desktop machine and heating-assisted method of polymer is developed. Four different polymers, polycarbonat(PC), polyetheretherketone(PEEK), poly(methy methacrylate)(PMMA) and polyvinylchloride(PVC), are processed to form the pyramid frustum with constant wall angle under the glass transition temperature. The temperature, forming force, geometric accuracy and surface quality in the forming process are analyzed. The experimental results show that the SPIF under heating conditions improves the formability of the polymer sheet. By this forming method, the possibility of individualized and flexible forming of polymer sheets is verified.

Key words: polymers, heating assisted, single point incremental forming, formability, geometric accuracy

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