Analysis and improvement of riveting process of automobile stiffening plate
Aiming at the problem of rivet often falling off on the stiffening plate of automobile front hatch cover,the original riveting process was improved and the shape of the riveting joint of the stiffening plate was optimized by analyzing the reason of rivet falling off and the rivet structure.The improved process route was piercing,hole expanding and sizing,riveting,inspection.At the same time,the performance of the reinforced plate before and after improvement was tested and compared.The test results showed that the improved rivet riveting process was superior to the un-improved rivet riveting process in pushing force,stripping moment,and breaking moment.There-fore,the improved riveting process improved the riveting quality of the stiffening plate and the riv-et,effectively reduced the risk of rivet falling off,and improved the reliability of the riveting prod-uct.
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NSTL
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