Glossary for technical terms

Our coaxworks glossary contains technical terms that are relevant to our products, services and applications in the field of laser wire deposition.

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Most of the definitions used here can also be found here or at the individual country-specific standardisation institutes:

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There are currently 4 technical terms in this directory beginning with the letter P.
parent material

Similar term: base material

The parent material means a ‘material to be joined, or surfaced, by welding, braze welding or brazing’.
[ISO/TR 25901-1:2016-03, Welding and allied processes — Vocabulary — Part 1: General terms]
pass

Similar term: run [ISO/TR 25901-1], bead [ISO/TR 25901-1]

The pass means the ‘metal melted or deposited during one passage of an electrode, torch or blowpipe’. ‘The term pass is commonly used in beam welding.’
[ISO/TR 25901-1:2016-03, Welding and allied processes — Vocabulary — Part 1: General terms]
processing head

The processing head is the ‘last technical assembly in the beam path from the laser to the processing location in laser material processing’. ‘In the processing head, necessary optical, electrical and mechanical construction elements (e.g. focusing optics, process gas nozzle and distance control) are combined, which can be moved as the last element to the material as a compact device.’

[translated after DIN 32532:2009-08, Schweißen – Laserstrahlverfahren zur Materialbearbeitung – Begriffe für Prozesse und Geräte]

The term processing head is also used in ISO 11553. Our laser welding heads are processing heads for a laser processing machine. A processing head is an interchangeable equipment.
protective exposure limit (PEL)

The protective exposure limit means the ‘maximum laser exposure of the front surface of a laser guard which prevents laser radiation accessible at its rear surface from exceeding the Class 1 AEL for the determined passive or active guard detection time’.

[IEC 60825-4:2022-07, Safety of laser products — Part 4: Laser guards]