METHOD AND DEVICE FOR PRODUCTION OF LARGE-SIZED RIBBED PANELS Russian patent published in 2014 - IPC B21J5/12 B21J13/02 

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and can be used in production of ribbed panels intended for bodies of compartments, bulkheads, wings and other parts of aircraft and spacecraft. Heated blank is strained at the rate of 0.01-10 mm/s, in steps over the sections, with gradual forming of the entire surface. Area of said sections is at least two times smaller than that of said blank. Straining is executed at the device to be secured in die unit for isothermal die forming. Proposed device comprises top and bottom plates, heaters, female die, male dies with cavities shaped and sized to panel ribs and at least two male die holders. The latter displace in guide columns. It includes sliding thrust plates with drive. One male die is rigidly fixed in male die holder. Other male dies are fitted in their holders and spring-loaded and can displace in direction of forming force application.

EFFECT: enhanced processing performances.

2 cl, 5 dwg