Correlation of Process Parameters with Mechanical Properties of Laser Sintered PA12 Parts
Selective laser sintering (SLS) is an additive manufacturing technique that enables the production of customized, complex products. SLS has proven itself a viable prototyping tool and production method for noncritical products. The industry has picked up on the potential of SLS, which raised the que...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/4953173 |
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| author | Eva C. Hofland Ismet Baran Dagmar A. Wismeijer |
| author_facet | Eva C. Hofland Ismet Baran Dagmar A. Wismeijer |
| author_sort | Eva C. Hofland |
| collection | DOAJ |
| description | Selective laser sintering (SLS) is an additive manufacturing technique that enables the production of customized, complex products. SLS has proven itself a viable prototyping tool and production method for noncritical products. The industry has picked up on the potential of SLS, which raised the question whether it is possible to produce functional products with reproducible mechanical properties for application in critical sectors. Properties of SLS parts highly depend on the applied process settings. Hence, present work examined the influence of key process parameters (preheating temperature, laser power, scan spacing, scan speed, layer thickness, and part build orientation) on the properties (tensile strength, tensile modulus, elongation at break, and part density) of SLS produced parts. A design of experiments (DoE) approach was used to plan the experiments. Test samples according to DIN EN ISO 527-2 were produced on a sintering system (EOSINT P395) using polyamide 12 powder (EOS PA2200). Regression models that describe the relation between the process settings and resulting part properties were developed. Sensitivity analysis showed that mechanical properties of sintered parts were highly affected by layer thickness and scan spacing variations. |
| format | Article |
| id | doaj-art-723b6d055b824af5aa7b6c1725f403fd |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-723b6d055b824af5aa7b6c1725f403fd2025-02-03T01:21:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/49531734953173Correlation of Process Parameters with Mechanical Properties of Laser Sintered PA12 PartsEva C. Hofland0Ismet Baran1Dagmar A. Wismeijer2Oceanz, Maxwellstraat 21, 6716 BX Ede, NetherlandsFaculty of Engineering Technology, University of Twente, 7500 AE Enschede, NetherlandsTNO, Equipment of Additive Manufacturing, de Rondom 1, 5612 AP Eindhoven, NetherlandsSelective laser sintering (SLS) is an additive manufacturing technique that enables the production of customized, complex products. SLS has proven itself a viable prototyping tool and production method for noncritical products. The industry has picked up on the potential of SLS, which raised the question whether it is possible to produce functional products with reproducible mechanical properties for application in critical sectors. Properties of SLS parts highly depend on the applied process settings. Hence, present work examined the influence of key process parameters (preheating temperature, laser power, scan spacing, scan speed, layer thickness, and part build orientation) on the properties (tensile strength, tensile modulus, elongation at break, and part density) of SLS produced parts. A design of experiments (DoE) approach was used to plan the experiments. Test samples according to DIN EN ISO 527-2 were produced on a sintering system (EOSINT P395) using polyamide 12 powder (EOS PA2200). Regression models that describe the relation between the process settings and resulting part properties were developed. Sensitivity analysis showed that mechanical properties of sintered parts were highly affected by layer thickness and scan spacing variations.http://dx.doi.org/10.1155/2017/4953173 |
| spellingShingle | Eva C. Hofland Ismet Baran Dagmar A. Wismeijer Correlation of Process Parameters with Mechanical Properties of Laser Sintered PA12 Parts Advances in Materials Science and Engineering |
| title | Correlation of Process Parameters with Mechanical Properties of Laser Sintered PA12 Parts |
| title_full | Correlation of Process Parameters with Mechanical Properties of Laser Sintered PA12 Parts |
| title_fullStr | Correlation of Process Parameters with Mechanical Properties of Laser Sintered PA12 Parts |
| title_full_unstemmed | Correlation of Process Parameters with Mechanical Properties of Laser Sintered PA12 Parts |
| title_short | Correlation of Process Parameters with Mechanical Properties of Laser Sintered PA12 Parts |
| title_sort | correlation of process parameters with mechanical properties of laser sintered pa12 parts |
| url | http://dx.doi.org/10.1155/2017/4953173 |
| work_keys_str_mv | AT evachofland correlationofprocessparameterswithmechanicalpropertiesoflasersinteredpa12parts AT ismetbaran correlationofprocessparameterswithmechanicalpropertiesoflasersinteredpa12parts AT dagmarawismeijer correlationofprocessparameterswithmechanicalpropertiesoflasersinteredpa12parts |