Flanging and riveting self-locking nut and machining method thereof
A technology of self-locking nuts and processing methods, which is applied in the direction of nuts, screws, bolts, etc., can solve the problems of low efficiency, troublesome processing, high cost and unable to meet the needs of rapid development, and achieve high safety and reliability, convenient maintenance, and locking good performance
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[0026] The manufacturing method of the present invention is that the bar is directly molded and pressed to form a blank, which is machined and cold deformed. The theoretical basis is to use a material with good plasticity, whose grains will not break after die forging, and whose grains are arranged in a linear shape, that is, the grain streamlines are uniform, complete and highly oriented. This kind of material has good upsetting processability and can obtain any shape blanks. Commonly used materials are carbon structural steel (such as: ML30, ML35), alloy structural steel (such as: 30CrMnSiA, 40CrNiMoA) and so on.
[0027] The turning riveting self-locking nut that the present invention processes, as figure 1 and 2 As shown, the shape of the turning riveting self-locking nut is a variable diameter cylinder, the middle section of the variable diameter cylinder is a large cylinder 1, one end of the large cylinder 1 is a cone 2, and the other end of the large cylinder 1 ...
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