Schema: addithive-agent-record/v1.1 · Record type: process · Valid as of: 2026-08-13
{
"schema": "addithive-agent-record/v1.1",
"id": "addithive:process:polymer-pbf-sls",
"record_type": "process",
"name": "Polymer Powder Bed Fusion",
"standard_designation": "PBF-LB/P",
"common_terms": [
"SLS",
"Selective Laser Sintering",
"polymer powder bed fusion"
],
"summary": "Polymer powder bed fusion thermally fuses thermoplastic powder layer by layer. Surrounding powder supports the part, enabling dense nesting without attached supports, but production economics depend on thermal consistency, powder refresh, cooling, breakout and finishing.",
"compatible_materials": [
"thermoplastic powders",
"polyamides",
"other polymer powders qualified for the specific machine and thermal route"
],
"core_bottlenecks": [
"thermal shrinkage",
"powder aging and refresh ratio",
"nesting strategy",
"cooling time",
"breakout and depowdering",
"dimensional consistency",
"surface texture",
"material genealogy",
"finishing capacity"
],
"post_process": [
"controlled cooling",
"breakout and depowdering",
"cleaning or blasting",
"dyeing where required",
"surface finishing",
"dimensional inspection"
],
"inspection": [
"dimensional verification",
"surface-condition checks",
"material and powder-lot traceability",
"application-specific mechanical testing",
"visual and functional inspection"
],
"best_fit_applications": [
"batch production with dense nesting",
"customized polymer parts",
"geometries that benefit from support-free powder-bed processing",
"low-to-medium volume functional polymer components",
"production where many different parts can share a build"
],
"poor_fit_signals": [
"parts dominated by very smooth surface requirements without finishing",
"routes with weak powder-refresh control",
"applications where long cooling and breakout queues erase printer productivity",
"critical polymer parts without validated material aging and dimensional data"
],
"relationships": [
{
"from": "surrounding powder",
"relation": "provides",
"to": "part support during build"
},
{
"from": "nesting density",
"relation": "influences",
"to": "unit economics"
},
{
"from": "powder aging and refresh",
"relation": "influences",
"to": "material consistency"
},
{
"from": "cooling and breakout capacity",
"relation": "can_constrain",
"to": "factory throughput"
}
],
"claims": [
{
"claim": "Addithive distinguishes polymer SLS / PBF-LB/P from metal LPBF and notes that surrounding powder usually eliminates the attached support structures common in metal LPBF.",
"claim_type": "fact",
"confidence": "high",
"evidence": [
"source:lpbf-terminology"
]
},
{
"claim": "Addithive identifies thermal shrinkage, nesting, powder aging, cooling and surface texture as core polymer powder-bed production considerations.",
"claim_type": "fact",
"confidence": "high",
"evidence": [
"source:lpbf-terminology",
"source:throughput-guide"
]
},
{
"claim": "Polymer PBF economics should be evaluated on accepted output after cooling, breakout, cleaning and finishing rather than printer cycle time alone.",
"claim_type": "analysis",
"confidence": "high",
"evidence": [
"source:throughput-guide"
]
}
],
"sources": [
{
"id": "source:lpbf-terminology",
"url": "https://addithive.com/2023/05/17/lpbf-dmlm-slm-dmls-sls-what-the-additive-manufacturing/"
},
{
"id": "source:throughput-guide",
"url": "https://addithive.com/2023/05/05/scaling-up-high-production-volume-additive-manufacturing-and-3d-printing/"
}
],
"valid_as_of": "2026-08-13",
"research_use_only": true,
"canonical_url": "https://addithive.com/2023/05/17/lpbf-dmlm-slm-dmls-sls-what-the-additive-manufacturing/",
"record_url": "https://addithive.com/2026/08/13/agent-process-polymer-pbf-sls/",
"last_verified": "2026-08-29"
}Related canonical answers
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