ANALYSIS OF SPRING-BACK DURING FORMING OF THE ELEMENT MADE OF AMS 5604 STEEL

作者：Adamus J^*; Lacki P; Lyzniak J; Zawadzki M

来源：Archives of Metallurgy and Materials, 2011, 56(2): 423-430.

DOI：10.2478/v10172-011-0045-5

• spring-back
• sheet-metal forming
• numerical simulation
• AMS 5604 steel

Spring-back poses a serious problem during the design of the sheet-metal forming processes due to difficulties in obtaining the correct shape and dimensional accuracy of the stamped elements. Forming with blank preheating is one of the methods of prevention against spring-back effect. However, this solution involves cost increase resulting from the additional operation of material heating and necessity of material protection against oxidation.
In the paper forming of an element made of AMS 5604 steel, which is a part of aircraft engine deflector, has been analysed. The work aimed at determination of the spring-back effect arising during two-time forming on deviation of the basic size of the drawn-part from nominal one. Basing on the numerical analyses an optimum yield point for the deformed material, which assures maximum deviation from the basic size lower than 0.1 mm, has been also determined. Change in the yield point value was obtained thanks to heating up of the blank material before forming.

• 出版日期2011