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Key representatives from the European shipbuilding sector visited Rotherham recently to learn about the ground-breaking progress in developing the friction stir welding (FSW) technique for steel.
The Welding Institute (TWI) is one of the world's foremost independent research and technology organisations and the Cambridge organisation has a Technology Centre on the Advanced Manufacturing Park (AMP) in Rotherham where experts provide technical support in joining and technologies such as material science, structural integrity, NDT, surfacing, electronic packaging and cutting.
Friction stir welding is a solid state welding process where no material exceeds it's melting point and was initially invented by TWI for welding aluminium. It has quickly become the process of choice for world-leading manufacturers such as Boeing, for the fabrication of strong, stiff, lightweight aluminium structures.
Through its involvement in the European research project, Project HILDA (High Integrity Low Distortion Assembly) the company is making further progress in developing the welding technique from the "softer" metals and using it for welding steel, bringing with it the technical and economic benefits of reduced distortion, enhanced weld strength and fatigue resistance, and making manufacturing safer and more environmentally friendly.
Up to 40% of the costs of building a ship are associated with correcting distortion of welded plates and so this new technique has the potential to introduce considerable cost savings during manufacture.
As part of the recent industry day project partners demonstrated a two metre-long friction stir weld in a six millimetre thick DH36 shipbuilding steel, a high tensile strength steel. Recent research carried out at the University of Strathclyde, one of the project partners, demonstrated the technical viability of friction stir welded shipbuilding steel components as the desired mechanical properties were attained with lower material distortion when compared to more traditional submerged arc welds.
GB T 5312 Carbon and carbon-manganese steel seamless steel tubes and pipes are mainly for ship use, also known as shipbuilding steel pipes. Under GB T 5312, there are mainly 5 steel grades: grade 320, 360, 410, 460 and 490. Each grade covers three levels: I, II, III.
Angle steel, commonly known as angle iron, is a long strip of steel whose sides are perpendicular to each other. There are equal angle steels and unequal angle steels. The two sides of equal angle steel are equal in width. The unequal angle steel is also known as L shape profile steel.
Flat bar steel can be produced according to the user's needs, with fixed thickness, width and length. It can reduce the cutting process for users, reduce the consumption of labor and materials, and also reduce the processing loss of raw materials.
Bulb flat steel for shipbuilding
The bulb flat steel is a kind of medium section material which is mainly used in the field of shipbuilding and bridge building, and the shipbuilding bulb flat steel is an auxiliary medium section material for shipbuilding.
The steel for shipbuilding and oil platform---FH40, is the high tensile strength steel.The shipbuilding steel FH40 is the Hull structural steel.We can provide FH40 shipbuilding steel plate price.
The steel for shipbuilding and oil platform---EH40, is the high tensile strength steel.The shipbuilding steel EH40 is the Hull structural steel.We can provide EH40 shipbuilding steel plate price.
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BBN SHIP STEEL FACTORY
