This work reports on a comparative study undertaken to examine the use of friction stir and submerged arc welding on DH36 and E36 shipbuilding steels. The study made an assessment of the distortion induced in fabricating plates by the two welding techniques, and provides initial comparative data on weld tensile strength, toughness and fatigue life.
The microstructure and mechanical properties of dissimilar butt-joints between a high-strength low alloyed (HSLA) grade and an austenitic high Mn TRIP steel were investigated. The tool rotation and the tool offset toward the TRIP steel were varied between 300500 rpm and 12 mm, respectively. Tool advancing speed amounted to 100 mm/min. Maximum tension stress was observed for the butt Friction Stir Welding - ESABFriction Stir Welding can be used to join aluminium sheets and plates without filler wire or shielding gas. Material thicknesses ranging from 0.5 to 65 mm can be welded from one side at full penetration, without porosity or internal voids. In terms of materials, the focus has traditionally been on non-ferrous alloys,
Friction Stir Welding In The Shipbuilding Industry. Taber Extrusions wants to lead the way in FSW development and be a part of its growth in the future. Taber Friction Stir-Welding Capabilities are second to none. With profile widths up to 31 inches, lengths up to 65 feet, and ability to weld up to ¾ of an inch in a single pass, Taber has an Friction Stir Welding of Aluminium and Steel for Marine Konkol P J, Mathers J A, Johnson R and Pickens J R:'Friction Stir Welding of HSLA-65 for Shipbuilding'. 3 rd International Friction Stir Welding Symposium, Kobe, Japan, September, 2001.
Sep 10, 2013 · INTRODUCTION. In response to industrial need for a high-strength, weldable, malleable, and corrosion resistant steel the United States Navy developed a high-strength, low-alloy steel known as HSLA 65. Because of its superior mechanical properties and low cost, HSLA 65 is being increasingly used in pipeline, naval, and automotive industries. Friction Stir Welding of HSLA-65 Steel for Shipbuilding Friction Stir Welding of HSLA-65 Steel for Shipbuilding Paul J. Konkol;
A set of single pass full penetration friction stir bead-on-plate and butt welds in HSLA-65 steel were produced using a range of traverse speeds (50 to 500 mm/min) and two tool materials (W-Re and PCBN). Part I described the influence of process and tool parameters on the microstructure in the weld region. This article focuses on the influence of these parameters on residual stress, but the Friction stir welding of steels for the oil and gas Jan 01, 2013 · 1. Introduction. Friction stir welding (FSW) of light Al and Mg alloys development started on 1991 at The Welding Institute, by a group leaded by W. Thomas 1) and is now a well established technology with important applications on the aerospace and transportation industries 2, 3).It did not take long before several researchers began studies on FSW of steel and other medium and high meting
Friction stir welding of thin DH36 steel plate N. A. McPherson*1, A. M. Galloway2, S. R. Cater3 and S. J. Hambling4 A series of 4, 6 and 8 mm DH36 steel welds were produced using optimum conditions for friction stir welding (FSW). Comparator welds in the same Handling HSLA - Welding ProductivityTypical tensile strength for HSLA steels is above 80,000 psi, but can range from 60,000 to more than 120,000 psi. The materials are becoming more commonly used in many industrial applications, including transmission pipelines (ranging from X52 to X100 pipe), heavy equipment, shipbuilding, railcars and structural steel.
Typical tensile strength for HSLA steels is above 80,000 psi, but can range from 60,000 to more than 120,000 psi. The materials are becoming more commonly used in many industrial applications, including transmission pipelines (ranging from X52 to X100 pipe), heavy equipment, shipbuilding, railcars and structural steel. Material Flow during Friction Stir Welding of HSLA 65 SteelMaterial flow during friction stir welding of HSLA-65 steel was investigated by crystallographic texture analysis. During the welding process, the steel deforms primarily by local shear deformation in the austenite phase and then transforms upon cooling. Texture data from three weld specimens were compared to theoretical textures calculated using ideal Euler angles for shear in face centered
Friction Stir Welding of HSLA-65 Steel for Shipbuilding, J. Ship Prod. 8756-1417, 19 (3 Rapid Formation of the Sigma Phase in 304 Stainless Steel During Friction Stir Welding Pedro Henrique COSTA PEREIRA DA CUNHA Professor Has experience in the area of Material and Metallurgical Engineering. Focused mainly in the subjects:Steels, Heat Treatment, Solid state Welding, Friction Stir Welding, HSLA, and Shipbuilding Steels.
Friction stir welding offers a number of advantages over conventional arc welding processes. These include:As a solid state welding process, FSW is a largely defect free joining method with no hot cracking, porosity or solidification cracks; Due to the lower temperatures there is a reduction in shrinkage and distortion in the material being joinedFriction Stir Welding of HSLA-65 Steel for Shipbuilding HSLA-65 (ASTM A945) is a new structural steel of interest to the Navy shipbuilding community. The feasibility of joining the alloy by the friction stir welding (FSW) process was assessed. Single-pass weldments in 6.4-mm plates and two-pass weldments