EuroBlech, O.M.T: a progressive die that produces a piece aluminium bracket for automotive industry


omt-stampiO.M.T. snc is specialized in the planning and realization of moulds for every kind of cold bucking of sheet steel. Borne in the 1989, present O.M.T. snc assures a high quality service together with the productive specifications adjustment. O.M.T made a progressive die that produces nr. 1 piece aluminium bracket for automotive industry. Starting from coils width 320 mm, the die performs the finished piece with insertion of nr. 4 pins inside the die. The piece is formed in 10 steps: nr. 2 blanking steps, nr. 1 forming step, nr. 1 hole-cutting step, nr. 2 steps for the insertion of pins, nr. 3 bending steps, nr. 1 calibration + separation step. The piece evacuated from the die falls on the conveyor belt, that brings the piece directly to the assembly line.The dimensions of the die are 3000x1100XH750mm. The production of the piece is done on mechanical press 800 Ton. The project of the die has been made with CAD 3D supported by dedicated application for the development of sheet metal.  Bending punches and matrixes are made with Toolox 33 with relative coatings, cutting punches and matrixes are made with hardened 1.2379. All structures are made with 1.0503. The die is divided into 2 modules, in order to facilitate the insertion of pin units. Everything has been mounted on a single upper and lower union plate for the quick fixing of the die on the press, with the help of fast clamping. All the parts that build the die are made with machining centers and cutting edge EDM facilities supported by CAM 3D programming. The samples produces with the die have been controlled and measured with 3D measuring machine. The die has been delivered to the customer already tried out and ready for series production.

EuroBlech Hall 17, Stand A48