AS ISO/ASTM 52911.2:2021

$149.01

Additive manufacturing — Design, Part 2: Laser-based powder bed fusion of polymers

Identically adopts ISO/ASTM 52911.2:2019, which specify the features of laser-based powder bed fusion of polymers (LB-PBF/P) and provide detailed design recommendations. Some of the fundamental principles are also applicable to other additive manufacturing (AM) processes, provided that due consideration is given to process-specific features. Also provides a state-of-the-art review of design guidelines associated with the use of powder bed fusion.

Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
5 Characteristics of powder bed fusion (PBF) processes
5.1 General
5.2 Size of the parts
5.3 Benefits to be considered in regard to the PBF process
5.4 Limitations to be considered in regard to the PBF process
5.5 Economic and time efficiency
5.6 Feature constraints (islands, overhang, stair-step effect)
5.6.1 General
5.6.2 Islands
5.6.3 Overhang
5.6.4 Stair-step effect
5.7 Dimensional, form and positional accuracy
5.8 Data quality, resolution, representation
6 Design guidelines for laser-based powder bed fusion of polymers (LB-PBF/P)
6.1 General
6.2 Material and structural characteristics
6.3 Anisotropy of the material characteristics
6.4 Build orientation, positioning and arrangement
6.4.1 General
6.4.2 Powder coating
6.4.3 Part location in the build chamber
6.4.4 Oversintering
6.4.5 Packing parts efficiently in the build chamber
6.5 Surface roughness
6.6 Post-production finishing
6.7 Design considerations
6.7.1 Allowing for powder removal
6.7.2 Reducing warpage
6.7.3 Wall thickness
6.7.4 Gaps, cylinders and holes
6.7.5 Lattice structures
6.7.6 Fluid channels
6.7.7 Springs and elastic elements
6.7.8 Connecting elements and fasteners
6.7.9 Static assemblies
6.7.10 Movable assemblies
6.7.11 Bearings
6.7.12 Joints
6.7.13 Integrated markings
6.7.14 Cutting and joining
6.8 Example applications
6.8.1 Functional toy car with integrated spring
6.8.2 Robot gripper
7 General design consideration
Bibliography

Cited references in this standard
Content history
DR AS ISO/ASTM 52911.2:2021

Please select a variation to view its description.

Published

21/05/2021

Pages

20

Please select a variation to view its pdf.

AS ISO/ASTM 52911.2:2021
$149.01