Method of forging a semi-finished product in a forging device on a hydraulic press, in particular for producing an aerospace fastener

摘要

The method of welding a semi-finished machine in a hydraulic press, in particular for the manufacture of air anchorages, consists of: that the top (1) and bottom (3) matrix inserts with working patterns in the middle (1a and 3a) are mounted on the top (11) and bottom (9) resistors in the hydraulic press, 3000 kN, and heated by means of gas burners up t o 300oC, after which the input material in the form of a moulded pre-nozzle in sand form with less plastic magnesium alloys of the magnesium-aluminium-zinc group is heated in the furnace at temperatures 400-430,up to 45 minutes, then the recorded input material shall be placed in the working arrangement (3a) of the lower matrix insert (3),Then the hydraulic pressure is applied to the top (11) bearing two identical circular transverse holes, leading by means of two equal driving wheels (10) located on the lower resistance plate, and the top matrix (1) of the forger is applied in ra progressive axis down to 15 mm/s in the direction of the lower matrix insert (3) and the input material is crushed by a working design (1a) of the upper matrix insert (1) and the working design (3a) of the lower matrix insert (3) and a semi-fabricate (2b) is formed with a lower conversion rate.