Thread Grinding Of Knurled Rivet Nut

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Thread Grinding Of Knurled Rivet Nut

Posted By haining khfastener     May 24, 2021    


We all know that there are many ways to process knurled rivet nut threads, and there are many steps. Today we will take a look at thread grinding.

Thread grinding is mainly used to process precision screw threads of hardened workpieces on thread grinders. According to the different cross-sectional shapes of the grinding wheels, there are two types of single-line grinding wheel and multi-line grinding wheel grinding. The pitch accuracy that can be achieved by single-line grinding wheel grinding is 5 to 6, and the surface roughness is R1.25 to 0.08 microns, and the grinding wheel is more convenient to dress. This method is suitable for grinding precision lead screws, thread gauges, worms, small batches of self-tapping screw threaded workpieces, and relieving precision hobs.

Multi-line grinding wheel grinding is divided into two types: longitudinal grinding method and plunge grinding method. The width of the grinding wheel of the longitudinal grinding method is smaller than the length of the thread to be ground. The grinding wheel can be moved longitudinally for one or several strokes to grind the self-tapping screw thread to the final size. The width of the grinding wheel of the plunge grinding method is greater than the length of the thread to be ground. The grinding wheel cuts into the surface of the workpiece radially, and the workpiece can be ground after about 1.25 revolutions. The productivity is higher, but the accuracy is slightly lower, and the grinding wheel dressing is more complicated. The plunge grinding method is suitable for shoveling larger batches of taps and grinding some self-tapping screw threads for fastening.

Of course, custom rivet nut can also be used in two ways.