Rigidity plasticity compound bulging forming device for large-diameter hydraulic-controlled three-way pipe
A technology of three-way pipe and large-diameter, which is applied in the field of rigid-plastic composite expansion forming device of large-diameter hydraulic-controlled three-way pipe, can solve the problem of low service life of punch, complex mold structure, and too small size of tube blank that cannot be used. problem, to achieve the effect of meeting the requirements of bulging forming
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[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0036] Such as Figure 4 As shown, it is a structural schematic diagram of an embodiment of a large-diameter hydraulically controlled three-way pipe rigid-plastic composite bulge forming device embodiment of the present invention. The large-diameter liquid-controlled three-way pipe rigid-plastic composite bulging forming device of this embodiment includes an upper half-mold 1 and a lower half-mold 2, and a circular tubular forming mold is arranged between the upper half-mold 1 and the lower half-mold 2. Cavity 3, the two ends of the forming cavity 3 are respectively equipped with bulging extrusion punches 4 that slide and fit with it, and the lower half mold 1 is provided with a b...
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