Experimental Study of Geometric Error of Static Pressure Support-ultrasonic Vibration Single Point Incremental Forming Parts

doi:10.3969/j.issn.1000-1093.2020.06.019

Abstract

Abstract: In the single point incremental forming process, the forming process is prone to instability, and the parts are prone to wrinkle and crack due to the suspended characteristics and the springback effect of sheet. In order to solve the problems of suspension region instability and springback, it is considered to introduce static pressure support and ultrasonic vibration into the single point incremental forming for auxiliary forming. The typical truncated cone is taken as the research object. The corresponding static pressure support system and ultrasonic vibration system were designed according to the mechanism of producing the geometric errors in the axial and normal directions. The effects of static pressure support and ultrasonic vibration on axial error of part and on normal error of shape surface were studied experimentsally. The results show that the static pressure support can reduce the axial error of part by 41.98%, and the ultrasonic vibration can reduce the normal error of shape surface by 84.21%. Key

Key words: formedpart, geometricerror, staticpressuresupport, ultrasonicvibration, singlepointincrementalforming

CLC Number:

TG663

BAI Lang, LI Yan, YANG Mingshun, LI Yuxi, LIN Yunbo, ZHAO Renfeng. Experimental Study of Geometric Error of Static Pressure Support-ultrasonic Vibration Single Point Incremental Forming Parts[J]. Acta Armamentarii, 2020, 41(6): 1219-1226.

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第41卷第6期2020 年6月
兵工学报ACTA ARMAMENTARII
Vol.41No.6Jun.2020

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