Device and method for compounding and forming central flange pipe joint from pipe blank in single-step and multi-directional way
A composite forming and tube blank technology, applied in mechanical equipment, engine components, metal processing equipment, etc., can solve the problems of different plastic processing technology, low material utilization rate, low production efficiency, etc., to save processing time and material utilization. The effect of high rate and few steps
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[0033] Example: A typical middle flange pipe joint, small end outer diameter d 3 =20mm, height h 1 =14mm, the outer diameter of the big end d 6 =24mm, height h 2 =14mm, through hole diameter d 4 =12mm, the diameter of the stepped hole at the big end d 5 =17.8mm, the central hexagonal flange is simplified into a cylindrical flange with a diameter of 30mm, the total height of the central flange pipe joint h =38mm; material is 15#; the outer diameter of tube blank is adopted d 2 =28mm, inner diameter d 1 =13mm, length of tube blank L =27.5; The die core rod 5 is placed in the die outer ring 4, the tube blank is sleeved on the die core rod 5, and the punch 3 is installed in the positive hexagonal cavity 6 at the upper end of the die outer ring, which is located in the tube The blank is extruded from top to bottom on a 2000KN hydraulic press. The metal filling is in good condition and the metal flow is consistent with the design.
[0034] The one-step multi-directional composite forming...
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