device for shaping hohlteilen complicated cross section

摘要

device for hohlteils forms a complicated cross-section, with: 1) querschnittsumfu00e4nge of hohlteils analyses, the shortest and longest querschnittsumfang to determinewith the cross section with the shortest extent than cross section a is designated and the cross-section with the longest scale cross-section (b); 2) a rohrrohling,the querschnittsumfang, referred to as' l ', no longer than that of the cross-section (b) of the hohlteils should be selected; 3) a formwerkzeug ca formwerkzeug d and two dichtstempel in accordance with the form of the hohlteils are designedwhat is equal or similar to the state of the art, and is therefore not described in detail herein; 4) the rohrrohling in the formwerkzeug d is arrangedwhich end of the rohrrohlings by dichtstempel sealed, and then the inside of the rohrrohlings with a fluid medium is filled; 5) the formwerkzeug c in the direction of the form movementstuff d move,so that the formwerkzeug c the rohrrohling touches; 6) the internal pressure p1 is set on the rohrrohlings; 7), the movement of the study c in the direction of the formwerkzeug d continued,with a bending moment m in rohrrohling by the combined force action on the formwerkzeuge and pressure is created, and the bending moment m possiblethe cross sections of the rohrrohlings a biegeverformung are exposed and successively in contact with interior surfaces of the formwerkzeuge c and d; 8) of the internal pressure of the rohrrohlings on p2 is set, if the rohrrohling on section a in close contact with 80% to 100% of the inside surfaces of the formwerkzeuge (c) and (d); and a pressure p2 higher than should bethe suppression of wrinkles when forms is necessary, but smaller than a pressure on the deformation of the rohrrohlings,and calculation methods for the two pressures equal to or similar to the state of the art, and therefore are not described in detail herein; 9), the movement of the study c in the direction of the formwerkzeug d continued,until the rohrrohling in the section b, in close contact with the inside surfaces of the formwerkzeuge c and d; and during this process, side walls (11 and rr) of a pressure rohrrohlingsdeformation, with the help of the pressure p2 of the rohrrohlings in the cross section of a face; and with the rohrrohling to the other sections on the basis of the first biegeverformung kombinieattribute power action of the formwerkzeuge and pressure and then druckverformung is exposed, while the upper formwerkzeug reduced,after the rohrrohling with 80% to 100% of the inside surfaces of formwerkzeuge in contact; 10) the dichtstempel is taken,the seal of the rohrrohlings lift; 11) the formwerkzeug c is removed.so that the shaped hohlteil can be withdrawn from the shaped hohlteil; und12) is derived from the fluid medium and then it is solved.