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Information × Registration Number 0219U004443, 0117U005303 , R & D reports Title Development and implementation of methods (patterns) of pulse electrohydraulic calibration for eliminating the effect of springing when forming parts of high strength steels popup.stage_title Head Starkov Mykola Volodymyrovych, Registration Date 05-08-2019 Organization Institute of Pulse Research and Engineering popup.description2 The goal of studies is the development and realization of methods (schematics) of puls electrohydraulic calibration aimed at the removal of springing effect during the stamping of parts, made of high strength steels, namely the possibility of the removal of parts shape disfigurement as a result of elastic deformation. The object of studies - technological process of electrohydraulic (EH) calibration of parts, made of Fortiform1050 and Trip690 high strength steels. Method of studies - physical experiment. Realisation of this process was performed at EH press with stored energy of 40 kJ without previous thermal treatment of parts with the impact of one-time pulse of high pressure up to 150 MPa of the liquid with the duration less than 0.001 s on them. After such treatment, the precision of test parts, made of high strength steels, was 20 - 30 times higher that the precision of test parts, made on mechanical presses. The recommendations on the peculiarities of the calibration of the parts of complex shape, made of Fortiform1050 and Trip690 high strength steels, were issued. The part must be calibrated after the mechanical stamping, i. e. before its cutting down to the size of fragment, as the stresses, that cause parts springing, are significantly redistributed (decreased) in the fragment, so they can not be completely removed. Proposed technological process can increase the precision of parts production in sheet stamping industry that utilizes mechanical presses with high efficiency Product Description popup.authors Іванов А.В. Бичков В.М. Дьогтєв Ю.Н. Старков М.В. Стрелковська Л.І. Тищенко Ф.М. Цуркін В.М. Честних М.В. popup.nrat_date 2020-04-02 Close