Abstract
A novel process called hot forming-quenching integrated process with cold-hot dies was proposed to improve the formability and avoid thermal distortion in solution heat treatment. In this process, the heated lower dies were used to improve the forming temperature and the cooled upper dies were utilized to accomplish quenching and reduce thermal distortion. The effects of temperatures of the hot dies ranging from 100 to 450°C on strengthening were systematically investigated. The strengths were measured by Vickers hardness test and uniaxial tensile test. It was found that the temperature of heated lower dies could be improved to 450°C to slow the temperature decrease of heated sheet besides obtaining excellent strength. The temperature of both hot dies could only be improved to 250°C. The strengthening phase was the dispersed lath-shaped S precipitate with an average cross-section of approximately 50×100nm.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
