Transactions of Materials and Heat Treatment

Title：Research on forming quality of cylindrical part of soft magnetic alloy 1J50 in flow spinning

Authors： Dai Guoyong Xia Qinxiang Cheng Xiuquan Zhu Ningyuan

Unit： South China University of Technology Guangzhou Civil Aviation College

KeyWords： soft magnetic alloy 1J50 flow spinning cylindrical part magnetic shielding case feed rate spinning pass

ClassificationCode：TG302；TH142.2

year,vol(issue):pagenumber：2017,42(1):60-65

Abstract：

Soft magnetic alloy cylindrical part is widely used in the electromagnetic field because of its excellent ability of anti-magnetic interference. To overcome defects of magnetic leakage and material waste in the traditional manufacturing, the flow spinning was put forward to realize the near-net forming, and the cylindrical part made of soft magnetic alloy 1J50 under the state of cold hard was treated by recrystallization annealing to obtain good plasticity. Then, the flow spinning was researched experimentally, and the influences of feed rate and spinning pass on the forming quality were analyzed by evaluating index of forming quality of the wall thickness deviation, ovality, straightness and roughness. The results show that the high forming quality can be obtained within the feed rate of 0.4-0.8 mm·r-1, while the quality becomes worse dramatically when the feed rate is greater than 0.8 mm·r-1. So, the flow spinning with a feed rate of 0.8 mm·r-1 is highly recommended under the comprehensive consideration of forming quality and production efficiency. With the increase of spinning passes, the wall thickness deviation and roughness decrease, while the ovality and straightness increase slightly.

Funds：

高等学校博士学科点专项科研基金资助项目(20130172110024)

戴国勇（1990-），男，硕士研究生 E-mail：709336534@qq.com 通讯作者：夏琴香（1964-），女，博士，教授 E-mail：meqxxia@scut.edu.cn

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