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Bessel and annular beams for materials processing

Abstract Non-Gaussian beam proles such as Bessel or an-nular beams enable novel approaches to modifying materials through laser-based processing. In this review paper, proper-ties, generation methods and emerging applications for non-conventional beam shapes are discussed, including Bessel, an-nular, and vortex beams. Electron Beam Machining SpringerLinkFeb 20, 2019 · Electron beam machining (EBM) is a thermal machining process in which high-velocity electrons concentrated into a narrow beam are used for instantly heating, melting, or vaporizing the material. This process is used in many applications, including drilling, cutting, annealing, and welding.

En 10025-2 Gb/t1591 Q345c Hot Rolled Low Alloy Steel Plate

En 10025-2 Gb/t1591 Q345c Hot Rolled Low Alloy Steel Plate , Find Complete Details about En 10025-2 Gb/t1591 Q345c Hot Rolled Low Alloy Steel Plate,Q345c Steel Plate,Q345c Alloy Steel Plate,Q345c Hot Rolled Low Alloy Steel Plate from Steel Sheets Supplier or Hot Rolled Steel H Beam Q235b Q345b Q345c Q345d Low Hot Rolled Steel H Beam Q235b Q345b Q345c Q345d Low Temperature Purpose H-beam , Find Complete Details about Hot Rolled Steel H Beam Q235b Q345b Q345c Q345d Low Temperature Purpose H-beam,Q235b H-beam,Q345d Low Temperature Purpose H-beam,Hot Rolled Q345b Steel H Beam from Steel H-Beams Supplier or Manufacturer-Shanghai Juqing Metal Product Co., Ltd. Laser Applications - Laser Cutting - MECCOLaser cutting is fast, precise and delivers a high-quality finish through a non-contact process at a defined focal length. With the laser beam directed at the material, laser cutting melts, burns or vaporizes the surface, leaving a high-quality edge on the material that its cutting.

Laser Beam Machining Parts, Working, Application,

Mar 11, 2021 · The laser is best used for cutting as well as for drilling. In order to achieve the best possible results in drilling, it is imperative that the material is located within a tolerance of +0.2 mm of a focal point. Accuracy in profile cutting with numerical control or photoelectric tracer is about +0.1 mm. Application of Laser Beam Machining Laser Optics and Selecting the Proper Lens for your CO2 You need to select the lens that is most appropriate for your application. In the illustration, I'm showing three lenses that will show different focal lengths and you will see how this changes the properties of the converged laser beam. I will show these as a 2" focal length, 3" focal length and a 4" focal length. SAE/AISI/ASTM 1045 Channel steel/angle steel/ H-beam/ I SAE/AISI/ASTM 1045 H-beam steel building is a new economy. H-beam cross-sectional shape economically reasonable, good mechanical properties, rolling more uniform cross-section extending points, internal stress, compared with the conventional beam, having a section modulus, light weight, the advantage of saving the metal is steel.

Steel W-Section I-Beams Supplier, China Marine Steel

The W section is a very efficient form for carrying both bending and shear loads in the plane of web. The application of steel W-section I-beams will reduce the final products weight and cut down expenditure. We are capable of supplying steel W-section I-beams which are manufactured under different standards. The Ultimate Guide to Fiber Laser Cutting MachineMfgWe offer fiber laser cutting machines with power range from 1000-12000W, capable of cutting carbon steel up to 30mm and stainless steel up to 45mm.. The laser generators and cutting heads are international brands, such as Precitec, Raytools cutting heads, IPG laser source, etc. We also offer economical solutions, such as using Raycus lasers and WSX laser cutting heads made in China. TimberStrand, Microllam, and Parallam Beams, Headers, Has warm, unique grain that is perfect for applications with exposed beams Provides ideal solutions for cantilever and multi-span applications Solid sections save time on site assembly Available in some regions with preservative treatment for exterior applications Code Evaluations:See ICC ES ESR-7 Trus Joist® microllam®

What Is Q345 Seamless Tube? - Standard - News - Hunan

May 22, 2020 · It has the advantages of high strength, good comprehensive performance, long service life, wide application range, and relatively economical. The steel is rolled into sheets, profiles, seamless steel tubes, etc., and is widely used in bridges, ships, boilers, vehicles and important building structures.Q345 Steel, Q345A Q345B Q345C Q345D Q345E Equivalent Dec 08, 2019 · Q345 Steel Properties. Q345 steel is a Chinese GB standard Low Alloy High Strength Structural Steel, material density is 7.85 g/cm3, tensile strength is 470-630 Mpa, and yield strength is 345 MPa, it has better properties than Q235.According to GB/T 1591 2008, Q345 material has 5 quality grades:Q345A, Q345B, Q345C, Q345D and Q345E. Q345 steel has good weldability, cold & hot