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Using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding
In laser cladding, the potential benefits of wire feeding are considerable. Typical problems with the use of powder, such as gas entrapment, sub-100% material density and low deposition rate are all avoided with the use of wire. However, the use of a powder-based source material is the industry stan...
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| Format: | Default Article |
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2017
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| Online Access: | https://hdl.handle.net/2134/23878 |
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| _version_ | 1818171517018570752 |
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| author | Nick Goffin Rebecca Higginson John Tyrer |
| author_facet | Nick Goffin Rebecca Higginson John Tyrer |
| author_sort | Nick Goffin (1253730) |
| collection | Figshare |
| description | In laser cladding, the potential benefits of wire feeding are considerable. Typical problems with the use of powder, such as gas entrapment, sub-100% material density and low deposition rate are all avoided with the use of wire. However, the use of a powder-based source material is the industry standard, with wire-based deposition generally regarded as an academic curiosity. This is because, although wire-based methods have been shown to be capable of superior quality results, the wire-based process is more difficult to control. In this work, the potential for wire shaping techniques, combined with existing holographic optical element knowledge, is investigated in order to further improve the processing characteristics. Experiments with pre-placed wire showed the ability of shaped wire to provide uniformity of wire melting compared with standard round wire, giving reduced power density requirements and superior control of clad track dilution. When feeding with flat wire, the resulting clad tracks showed a greater level of quality consistency and became less sensitive to alterations in processing conditions. In addition, a 22% increase in deposition rate was achieved. Stacking of multiple layers demonstrated the ability to create fully dense, three-dimensional structures, with directional metallurgical grain growth and uniform chemical structure. |
| format | Default Article |
| id | rr-article-9234545 |
| institution | Loughborough University |
| publishDate | 2017 |
| record_format | Figshare |
| spelling | rr-article-92345452017-01-01T00:00:00Z Using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding Nick Goffin (1253730) Rebecca Higginson (1252992) John Tyrer (1248717) Materials engineering not elsewhere classified Laser cladding Wire shaping Power density Dilution Holographic optics Materials Engineering not elsewhere classified In laser cladding, the potential benefits of wire feeding are considerable. Typical problems with the use of powder, such as gas entrapment, sub-100% material density and low deposition rate are all avoided with the use of wire. However, the use of a powder-based source material is the industry standard, with wire-based deposition generally regarded as an academic curiosity. This is because, although wire-based methods have been shown to be capable of superior quality results, the wire-based process is more difficult to control. In this work, the potential for wire shaping techniques, combined with existing holographic optical element knowledge, is investigated in order to further improve the processing characteristics. Experiments with pre-placed wire showed the ability of shaped wire to provide uniformity of wire melting compared with standard round wire, giving reduced power density requirements and superior control of clad track dilution. When feeding with flat wire, the resulting clad tracks showed a greater level of quality consistency and became less sensitive to alterations in processing conditions. In addition, a 22% increase in deposition rate was achieved. Stacking of multiple layers demonstrated the ability to create fully dense, three-dimensional structures, with directional metallurgical grain growth and uniform chemical structure. 2017-01-01T00:00:00Z Text Journal contribution 2134/23878 https://figshare.com/articles/journal_contribution/Using_wire_shaping_techniques_and_holographic_optics_to_optimise_deposition_characteristics_in_wire-based_laser_cladding/9234545 CC BY 4.0 |
| spellingShingle | Materials engineering not elsewhere classified Laser cladding Wire shaping Power density Dilution Holographic optics Materials Engineering not elsewhere classified Nick Goffin Rebecca Higginson John Tyrer Using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding |
| title | Using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding |
| title_full | Using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding |
| title_fullStr | Using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding |
| title_full_unstemmed | Using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding |
| title_short | Using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding |
| title_sort | using wire shaping techniques and holographic optics to optimise deposition characteristics in wire-based laser cladding |
| topic | Materials engineering not elsewhere classified Laser cladding Wire shaping Power density Dilution Holographic optics Materials Engineering not elsewhere classified |
| url | https://hdl.handle.net/2134/23878 |