Forming process and forming device of semi-hexagonal rivet nut and semi-hexagonal rivet nut

• Main Authors: DUAN SENYUE, LU FENG, LIN YONGDE, WEI SHUANGLAI, QIN KUN, PAN JIAYUN
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: FORGE FURNACES; FORGING; HAMMERING; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; TRANSPORTING

The invention provides a semi-hexagonal rivet nut forming process and device and a semi-hexagonal rivet nut. The semi-hexagonal rivet nut forming process comprises the steps that a wire is cut off to form a preset blank; the preset blank is shaped; forming a preset head flange and a preset rod part from the shaped preset blank; reversely extruding a first inner hole in the preset head flange through the fixed point of the head of the preset head flange, and forming a preset rod part into a hexagonal rod; finishing the diameter of the preset head flange to form the head flange; reversely extruding a second inner hole from the inside of the hexagonal rod, and rounding the lower section, far away from the head flange, of the hexagonal rod to form a second rod part; forming a chamfer at one end, far away from the head flange, of the second rod part; and heat treatment, tapping, electroplating and gluing are conducted on the preset semi-hexagonal rivet nut with the chamfer formed on the second rod part, and the fi