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Analysis of quality problems produced by pressure riveting

2022-01-06

In the process of mechanical riveting, if the riveting pressure is within the set range, convex and concave die in the service life, then the tensile strength and shear strength of the riveting point depends on the bottom thickness of the riveting point. So in the process of pressure riveting, as long as the bottom thickness of the pressure riveting point is controlled in the prescribed range, the quality of the pressure riveting point can be controlled to ensure that it reaches a certain tensile and shear strength. Therefore, the connection quality of the riveting point can be judged by measuring the bottom thickness of the riveting point. The base thickness can be measured with a special centrometer.


Whether the riveting pressure is within the set range can be monitored by the monitoring system of the riveting equipment itself. The riveting pressure of each riveting point is fed back through the monitoring system. If the riveting pressure exceeds the set range, the monitoring system will send out an alarm signal to remind the inspection equipment.


In the production process, the quality problems caused by mechanical riveting generally have the following kinds: virtual riveting, crack, pressure riveting point position deviation, edge pressure riveting point, leakage riveting.




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