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

doi:10.3901/JME.2020.16.071

Abstract

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

CLC Number:

TG316

YANG Zhiyun, CHEN Fei. Study on the Heating-assisted Single Point Incremental Forming of Polymers[J]. Journal of Mechanical Engineering, 2020, 56(16): 71-77.

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