Mold/non-mode combined pulling process and device
A combined drawing and process technology, used in metal drawing forming tools, metal wire drawing, manufacturing tools and other directions, can solve the problems of reducing drawing force, large deformation without die drawing and die drawing, etc. The effect of drawing force, shortening drawing pass, convenient operation and maintenance
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[0029] Example 1:
[0030] A 6 mm diameter nickel-titanium shape memory alloy wire with a nearly equal atomic ratio is selected as the blank, which passes through the feeding mechanism (2), heater (3), drawing die (4), cooler (5) and Traction mechanism (6); then, turn on the heater (3) to heat it to 783K (0.50 times its melting point temperature Tm); start the feeding mechanism (2) and traction mechanism (6) at the same time, at the drawing speed Vo Under the condition of the ratio Vo / Vi=2.2 to the feed speed Vi of the blank, the combined drawing with die / die is completed through the action of the drawing die (4) and the cooler (5); a diameter of 4 mm and a good surface finish are obtained , High dimensional accuracy, near-atomic ratio Nitinol shape memory alloy wire.
Example Embodiment
[0031] Example 2:
[0032] Select a 304 stainless steel wire with a diameter of 6 mm as the blank, and then pass through the feeding mechanism (2), heater (3), drawing die (4), cooler (5) and traction mechanism (6) in turn after tipping; , Turn on the heater (3) to heat it to 1540K (0.90 times its melting point temperature Tm); at the same time start the feeding mechanism (2) and the traction mechanism (6), and the drawing speed Vo and the blank feeding speed Vi Under the condition of the ratio Vo / Vi=2.8, the combined drawing with die / die is completed through the action of drawing die (4) and cooler (5); 304 stainless steel with a diameter of 3.6 mm, good surface finish and high dimensional accuracy is obtained Wire.
Example Embodiment
[0033] Example 3:
[0034] Select the YL12 aluminum alloy wire with a diameter of 6 mm as the blank, and then pass through the feeding mechanism (2), heater (3), drawing die (4), cooler (5) and traction mechanism (6) after tipping; Then, turn on the heater (3) to heat it to 745K (0.85 times its melting point temperature Tm); at the same time start the feeding mechanism (2) and the traction mechanism (6), at the drawing speed Vo and the blank feeding speed Vi Under the condition of the ratio of Vo / Vi=2.3, the combined drawing with die / die is completed through the action of drawing die (4) and cooler (5); a YL12 with a diameter of 4 mm, good surface finish and high dimensional accuracy is obtained Aluminum alloy wire.
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