Researches Regarding Heterogeneous Welding between Carbon and Stainless Steel used in Fabrication of Cylinders' Rod for Magnesium Alloy Extruders

7th International Conference on Advanced Materials and Structures

Zgripcea, L.^1 ; Lupu, O.^1 ; Ardelean, M.^1 ; Putan, V.^1

Politehnica University of Timisoara, Engineering and Management Department, 5 Revolution Street, Hunedoara

331128, Romania^1

关键词: Automotive sector;    Extrusion chambers;    High rate;    High temperature and pressure;    Specific strength;    Structural steels;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/416/1/012100/pdf
DOI  :  10.1088/1757-899X/416/1/012100

来源: IOP

【 摘 要 】

Magnesium alloys are used more and more in automotive industry due to specific strength (ratio between tensile strength and density) of 158kNm/kg versus 46kNm/kg in case of structural steel. Another advantage of magnesium alloys is machinability, aspect and automated caste/extrusion. With this last procedure is possible to achieve high rate of productivity for complicate pieces, needed in automotive sector. Technologically, a big issue of magnesium alloy is its reactivity in contact with carbon steel, accentuated by high temperature and pressure from extrusion chambers.