Jan 17, 2020 · The deep penetration laser welding of a thick section of austenitic stainless steel by a 20 kW laser is systematically evaluated. The welding phenomena of bead-on-plate and butt-welding of 20 and 30 mm thick steel plates are examined.
Deep penetration laser welding of austenitic stainless Jan 17, 2020 · The deep penetration laser welding of a thick section of austenitic stainless steel by a 20 kW laser is systematically evaluated. The welding phenomena of bead-on-plate and butt-welding of 20 and 30 mm thick steel plates are examined.
Keywords:Duplex Stainless Steel, Laser Beam Welding, Laser Power, Welding Speed, Defocusing Distance, Shielding Gas Type, Fusion Zone, Microstructure, Mechanical Properties, Corrosion Resistance . 1. Introduction . The duplex stainless steels have been developed to pro-vide a combination of strength and resistance to pitting
Effect of laser welding parameters on fusion zone shape Aug 01, 1997 · The present investigation is concerned with laser power, welding speed, defocusing distance and type of shielding gas and their effects on the fusion zone shape and final solidification structure of some austenitic stainless steels. 2. Experimental procedure Three types of commercial austenitic stainless steels, 304L, 316L and 347, were used.
Evaluation of solidification - Welding in the WorldJan 21, 2016 · Laser beam welding (LBW) transverse-Varestraint tests were performed to quantitatively evaluate the solidification cracking susceptibility of laser welds of type 316FR stainless steel with two kinds of filler metal (316FR-A and 316FR-B). This found that as the welding speed increased from 1.67 to 40.0 mm/s, the increase in the solidification brittle temperature range (BTR) was greater in the
Sep 27, 2019 · Pulsed or continuous laser beams are used for welding. Thin materials are weld by using millisecond-pulses and continuous laser beams are used for deep welds. It is a versatile process because it is capable of welding carbon steels, stainless steel, HSLA steel, aluminum, and titanium.
Laser Beam Welding of High-Manganese Stainless fully austenitic microstructures in stainless steel welds without hot cracking. Rapid solidification conditions encountered dur ing laser beam welding have been found to alter the microstructure of Type 308 stainless steels (Ref. 10). Thus, laser beam welding presents one means by which the normal solidification structure can be
Laser Welding Austenitic (300 Series) Stainless SteelLaser Welding Austenitic (300 Series) Stainless Steel Crossection of bead on plate weld of 3 mm thick Type 304 stainless steel. Welding parameters include 1.9 kW average power from a CW fiber laser, focused beam diameter of 125 µm, 1.6 m/min welding steel, and nitrogen shield gas.
3. Effective measures to avoid laser welding deformation. In order to reduce the deformation of laser welding and improve the welding quality of stainless steel plate, it can start from optimizing the welding process parameters, and the specific operation methods are as followed:3.1 Actively introduce the orthogonal experiment method
Perspectives of laser-beam welding of ultra-high steelsLasers in Manufacturing Conference 2017 Perspectives of laser-beam welding of ultra-high steels Martin Dahmena,*, Stefan Lindnerb, Dirk Petringa aFraunhofer-Institute for Laser Technology, Steinbachstraße 15, 52074 Aachen, Germany bOutokumpu Nirosta GmbH , Oberschlesienstraße 16 47807 Krefeld Germany Abstract The increasing demand for sustainable manufacturing in sheet metal
Stainless Steels Welding Guide - Lincoln ElectricAustenitic stainless steels include the 200 and 300 series of which type 304 is the most common. The primary alloying additions are chromium and nickel. Ferritic laser beam welding, friction welding and brazing. For any of these processes, joint surfaces and any filler metal must be clean.
It is well recognised that laser beam welding is a very versatile joining process which can be easily automated and is capable to achieve high productivity and quality welds in different alloys. However, there are still some concerns about its use for welding of austenitic stainless steels.
Towards a Map of Solidification Cracking Risk in Laser It is well recognised that laser beam welding is a very versatile joining process which can be easily automated and is capable to achieve high productivity and quality welds in different alloys. However, there are still some concerns about its use for welding of austenitic stainless steels.
Welding austenitic stainless steel - The FabricatorFor example, on 304 series austenitic stainless steel, you should use an ER308 rod (see Figure 1 for additional options and exceptions). Typically, austenitic stainless steel filler rod is available in diameters from 0.035 to 5/32 inch (0.9 to 4.0 mm) and chosen according to the joint design, welding
Paper deals with the welding of AISI 304 thin sheets with the thickness of 1 mm by fiber laser. Statistical software MiniTab was used for planning the experiment. The influence of laser power, welding speed and focal point position on width and depth of weld bead was examined. Output power, welding speed and focus point position were used as variable factors for DOE.Laser Beam Welding of Austenitic Stainless Steels 3 rows · 1.1. Laser beam welding of similar butt joints of austenitic stainless steels. Because