Similar terms: focus, focal point
The beam waist means the ‘portion of a beam where the beam diameter or beam width has a local minimum’.[ISO 11145:2018, Optics and photonics — Lasers and laser-related equipment — Vocabulary and symbols]
The beam waist is thus the most energetic area of the laser beam and the place where the welding process is carried out.Similar term: build up [ISO/TR 25901-1]
Building up means ‘overlay welding to obtain or restore required dimensions’.[ISO/TR 25901-1:2016-03 Welding and allied processes — Vocabulary — Part 1: General terms]
Similar terms: curvature, bend
The cast is defined as the ‘diameter of some loops of wire placed on a flat surface without restraint’.[ISO 544:2017 Welding consumables — Technical delivery conditions for filler materials and fluxes — Type of product, dimensions, tolerances and markings]
Similar terms: coating, film
The cladding means a ‘material deposited on the parent material in order to produce a clad material’.[ISO/TR 25901-1:2016-03 Welding and allied processes — Vocabulary — Part 1: General terms]
The cladding process means ‘surfacing used for applying cladding’. ‘Cladding processes are overlay welding, hot rolling, explosive welding, etc.’
[ISO/TR 25901-1:2016-03 Welding and allied processes — Vocabulary — Part 1: General terms]Similar term: application rate
The deposition rate means the ‘mass of metal deposited per unit of productive weld time’.[ISO/TR 25901-1:2016-03 Welding and allied processes — Vocabulary — Part 1: General terms]
The metal in our case is the wire material [EN 544].The directed energy deposition is an ‘additive manufacturing process in which focused thermal energy is used to fuse materials by melting as they are being deposited’. ‘“Focused thermal energy” means that an energy source (for example laser, electron beam or plasma arc) is focused to melt the materials being deposited.’
[ISO/ASTM 52900:2021 Additive manufacturing — General principles — Fundamentals and vocabulary]The filler wire means a ‘filler material in the form of a wire which can be a part of the welding circuit’.
[ISO/TR 25901-1:2016-03 Welding and allied processes — Vocabulary — Part 1: General terms]Fusion welding means ‘welding involving localized melting without the application of external force in which the fusion surface(s) has (have) to be melted with or without addition of filler material’
[ISO 11553-1:2020-04, Safety of machinery — Laser processing machines — Part 1: Laser safety requirements]
The filler material in our case is the wire material [EN 544].Similar terms: axis, positioning, robot, handling device
A handling unit means (along with measurement systems and control systems and laser assembly) the part of a laser unit that is responsible for positioning between the processing head and the workpiece. [ISO 11145]Similar term: twist
‘The helix is defined as the vertical seperation between any part of one loop of wire placed on a flat surface without restraint and the flat surface.’[ISO 544:2017 Welding consumables — Technical delivery conditions for filler materials and fluxes — Type of product, dimensions, tolerances and markings]
A Laser means a ‘device having an energized amplifying medium within an optical resonator that generates coherent electromagnetic radiation with wavelengths up to 1 mm by means of amplified stimulated emission’.
[ISO 11145:2018-11, Optics and photonics — Lasers and laser-related equipment — Vocabulary and symbols]Similar term: laser cladding
Laser beam cladding means overlay welding by means of laser welding. [ISO 15609-4]Laser metal deposition means a directed energy deposition (DED) with a laser beam (-LB) on metallic materials (/M). [ISO/ASTM 52900, ISO/ASTM TR 52912]
Similar terms: laser unit [ISO 11145], machining center [ISO 19353], CNC machine, laser cell
A laser processing machine means a ‘machine in which (an) embedded laser(s) provide(s) sufficient energy or power to melt, evaporate, or cause a phase transition in at least a part of the workpiece, and which is ready to use in function and safety’.[ISO 11553-1:2020-04, Safety of machinery — Laser processing machines — Part 1: Laser safety requirements]
The laser processing machine is for our laser welding head, as an interchangeable equipment, the basic machinery [Guidance to application of the Machinery Directive 2006/42/EC, European Commission].Similar term: laser beam welding
Laser welding means ‘fusion welding using a coherent beam of monochromatic light’.[ISO/TR 25901-3:2016-03, Welding and allied processes – Vocabulary – Part 3: Welding processes]
Similar terms: laser metal deposition with wire (LMDW) [DIN 17024], wire laser additive manufacturing (WLAM) [DIN 17024]
Laser wire deposition means directed energy deposition with the welding consumable wire and the main energy source laser beam. [DIN 17024]Overlay welding means ‘surfacing by means of welding’.
[ISO/TR 25901-1:2016-03 Welding and allied processes — Vocabulary — Part 1: General terms]Surfacing means the ‘deposition of material on a surface to obtain desired properties and/or dimensions’.
[ISO/TR 25901-1:2016-03 Welding and allied processes — Vocabulary — Part 1: General terms]Welding means a ‘joining process in which two or more parts are united producing a continuity in the nature of the workpiece material(s) by means of heat or pressure or both, and with or without the use of filler material’.
[ISO/TR 25901-1:2016-03 Welding and allied processes — Vocabulary — Part 1: General terms]
The filler material in our case is the wire material [EN 544].