Transactions of Materials and Heat Treatment

Title：Experiment and process parameter optimization on high pressure water jet incremental forming of metal bellows

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ClassificationCode：TG394

year,vol(issue):pagenumber：2022,47(7):132-137

Abstract：

The welded stainless-steel pipe with the thickness of 0.3 mm and the diameter of Φ220 mm was used as the blank for experiment. The bellows forming experiment was carried out on a five axis high pressure water jet incremental forming machine independently developed by Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences. Firstly, the value ranges of factors influencing forming was determined by single factor experiment. Then, the optimization scheme of orthogonal experiment was designed. The range analysis method was used to analyze the orthogonal experiment results. The order of significance for four factors on the forming accuracy was determined as water jet pressure, distance between nozzle and blank, axial pressure, nozzle rotation speed. And the optimal process parameters of high pressure water jet incremental forming for bellows were obtained with the water jet pressure of 100 MPa, the distance between nozzle and blank of 12 mm, the nozzle rotation speed of 400 mm·min-1, and the axial pressure of 320 N. The experiment shows that the bellows formed under this process parameters have high forming accuracy.

Funds：

安徽省高校自然科研重点项目（KJ2021A1060）；粤港澳人机智能协同系统联合实验室项目（2019B121205007）

作者简介：魏树国（1970-），男，博士，副教授 E-mail：weisg188@126.com

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