Thứ bảy, 26/09/2026 | 00:56
ABSTRACT Friction stir welding (FSW) is a solid-state joining process and is widely used in many industries because it is efficient, low cost, and environmentally friendly. Boron steel is a lightweight material but high-strength steel with a tensile strength of up to 1500MPa. In fact, it is also used in the automotive and aerospace industries due to the lightweight, high bearing, and energy-saving capacity when manufacturing the shell frame texture. In this research, the butt-joint boron steel of 1mm thickness was welded successfully by the friction stir welding process. The microstructure and basic mechanical properties of the welding were investigated by different methods. The results of the research showed that we can use friction stir welding to weld boron steel without heating before welds and this method can change the structure of boron steel at welding areas. Keywords: Friction stir welding, boron steel, mico-structure, micro-hardness, tensile strength. |
Thay mặt Chính phủ, Phó Thủ tướng Hồ Quốc Dũng ký Nghị quyết số 282/NQ-CP ngày 22/9/2026 ban hành Kế hoạch hành động của Chính phủ thực hiện Kết luận số 51-KL/TW ngày 17/6/2026 của Bộ Chính trị về đẩy mạnh công tác sở hữu trí tuệ phục vụ phát triển kinh tế - xã hội trong tình hình mới.
24/09/2026