FIELD: technological processes.
SUBSTANCE: invention relates to metal forming, particularly, to die tooling to produce hollow parts by drawing and thinning operations. Guide plates and intermediate plate with guide bushings, cams interacting with L-shaped stops for their turn are installed on bottom plate, and rotary L-shaped stops are fixed on upper plate, having a cavity connected by springs with intermediate plate. Besides, matrix for extrusion with pusher is additionally installed on lower plane of intermediate plate, coaxially with male die and female drawing die. On the upper plane of the intermediate plate there is an elastic element contacting one end with the pusher, and the other with the puncheon holder installed on the upper plate.
EFFECT: higher quality of inner surface of article due to provision of face support at drawing with thinning of hollow billet.
1 cl, 3 dwg
| Title | Year | Author | Number |
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| DIE FOR TRIMMING HOLLOW ARTICLES | 0 |
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| DIE FOR BLANKING AND MULTIPASS DRAWING | 0 |
|
SU1459768A1 |
