Annular laser beam cladding process feasibility study

Kuznetsov, Alexander (author), Jeromen, Andrej (author), Levy, Gideon (author), Fujishima, Makoto (author), Govekar, Edvard (author)

In the paper a novel annular "ring shaped" laser beam cladding head and related cladding process are presented. In the cladding head a laser beam is shaped into an annular ring and guided coaxially with the powder tube disposing the powder jet in the centre of the focused annular laser beam ring. An experimental process feasibility analysis was performed using a Nd:YAG pulsed laser system with a maximal average power 250 W. Beside the known influencing parameters of laser cladding process including the powder mass flow, workpiece feeding velocity, and laser beam intensity, the important parameters related to the annular laser beam caustics were defined. The process feasibility and influence of the process parameters on powder catchment efficiency was analysed based on the cladding experiments of SS 316L powder on SS 304 workpiece material. The potential benefits related to the annular laser beam melt pool geometry and related powder catchment efficiency are discussed.

• Language: English
• Keywords: annular laser beams, powder cladding, process parameters, powder catchment efficiency
• Work type: Article
• Typology: 1.08 - Published Scientific Conference Contribution
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2016
• Number of pages: F. 647-656
• PID: 20.500.12556/RUL-105771
• UDC: 535(045)
• ISSN on article: 1875-3892
• DOI: 10.1016/j.phpro.2016.08.067
• COBISS.SI-ID: 14887195
• Publication date in RUL: 13.12.2018

Record is a part of a proceedings

• Title: Laser assisted net shape engineering
• COBISS.SI-ID: 14886427

Record is a part of a journal

• Title: Physics procedia
• Publisher: Elsevier
• ISSN: 1875-3892
• COBISS.SI-ID: 26154791

Secondary language

• Language: Slovenian
• Keywords: kolobarjasti laserski žarki, navarjanje prahu, procesni parametri, izkoristek prahu

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0241
• Name: Sinergetika kompleksnih sistemov in procesov