Research on Rolling Strengthening and Testing of MJ External Thread of Ultrahigh Strength Steel
Taking the MJ external thread machining of ultra-high strength steel TM210A material as an example,by designing fixtures,optimizing processes,and rolling reinforcement,the microstructure of the thread bottom surface is improved while ensuring the small diameter of the thread remains unchanged,and the surface roughness of the thread bottom is detected by non-contact means.After analysis,it can be concluded that rolling reinforcement can effectively reduce the stress concentration at the bottom of the thread,thereby improving the overall performance of the parts.
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