PURPOSE: A high-strength hot rolled steel sheet with improved weldability for hydroforming and a method for manufacturing thereof are provided to secure a hot-rolled steel sheet with high strength, superior formability, and excellent weldability. CONSTITUTION: A method for manufacturing a high-strength...
Increase the calculation of interval tension mean, and the method of median is optional (integral calculation, point calculation); Excel derives the results and increases the judgment of selective tension effect(OK/NG); Increase the value of the tension interval. Each se...
Increase the calculation of interval tension mean, and the method of median is optional (integral calculation, point calculation); Excel derives the results and increases the judgment of selective tension effect(OK/NG); Increase the value of the tension interval. Each section takes a ...
A thick high strength steel sheet for high heat input contains 0.03~0.08wt.% of carbon, 0.05wt.% and below of silicon, 1.4~1.7wt.% of manganese, 0.01~0.06wt.% of aluminum, 0.05wt.% and below of phosphorus, 0.01wt.% and below of sulfur, 0.20~0.40wt.% copper, 0.20~0.60wt.% of ...
Increase the calculation of interval tension mean, and the method of median is optional (integral calculation, point calculation); Excel derives the results and increases the judgment of selective tension effect(OK/NG); Increase the value of the tension interval. Each section...
The ultimate tensile strength obtained from this set of parameters was 294.84 MPa, which was better than that of the RSM by 1.48%. Keywords: friction stir welding; ultimate tensile strength; modified differential evolution; response surface method 1. Introduction Aluminum is widely used to produce ...