The Basic Research and Application on Hot Forming of High Strength Steel

Abstract:

Taking the high-strength steel 22MnB5 as the research object, starting from the phase transformation and the performance of the sheet at high temperature, the impact of various process parameters on the part was studied, pressing the stringers with hot forming technology simultaneously. Using metallurgical microscope, hardness tester and universal tensile testing machine, the microstructure and mechanical properties of the parts were analysed. The result show that, under the selected process parameters, the microstructure of the workpiece is desired lath martensite, the hardness is above 450HV, the tensile strength is above 1450MPa, which meet the production requirements.

• Periodical: Advanced Materials Research (Volume 800)
• Pages: 280-283
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.800.280
• Online since: September 2013
• Authors: Fu Li Lu, Ji Shun Song, Jian Zhang, Xiu Ping Yan
• Keywords: Car Stringers, High Strength Steel (HSS), Hot Forming, Process Parameter

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