Chapter 5.2 AM Additional

Question 1

Sort binding mechanisms in PBF in order of strength
(Powder bed fusion)

Answer 1

1. Full melting (Strongest)
2. Liquid phase sintering (Necking)
3. Solid state sintering (Necking + no full mixing)
4. Chemically induced bonding

Question 2

AM processes that use support structures

Answer 2

• Material Extrusion (Fused Deposition Modelling (FDM))
• Material Jetting (Polyjet)
• Powder Bed Fusion (PBM) (All subtypes except SLS) (Metals only)
• Vat Photopolymerisation (Stereolithography (SLA) only)

Question 3

AM processes that don’t use support structures

Answer 3

• Binder Jetting (All subtypes)
• Directed Energy Deposition (DED) (All subtypes)
• Powder Bed Fusion (PBM) (All subtypes) (Non-metals)
• Vat Photopolymerisation (Digital Light Processing (DLP) only)
• Sheet Lamination (All subtypes)

Question 4

AM processses for large parts

Answer 4

• Binder Jetting (Digital Part Materialisation (DPM) only)
• Directed Energy Deposition (DED) (Electron Beam Direct Manufacturing (EBDM) only)
• Material Extrusion (Fused Deposition Modelling (FDM))

Question 5

AM processes for multiple materials / colours

Answer 5

• Binder Jetting (ColorJet Printing (CJP) only)
• Directed Energy Deposition (DED) (Electron Beam Direct Manufacturing (EBDM) only)
• Material Jetting (Polyjet)

Question 6

AM processes for alloys

Answer 6

• Directed Energy Deposition (DED) (Laser Metal Deposition (LMD) only)

Question 7

AM processes for metals

Answer 7

• Binder Jetting (All subtypes)
• Directed Energy Deposition (DED) (All subtypes)
• Material Extrusion (Fused Deposition Modelling (FDM))
• Powder Bed Fusion (PBM) (All subtypes except Multi-Jet Fusion)

Question 8

AM processes for ceramics

Answer 8

• Binder Jetting (ColorJet Printing (CJP) only)
• Powder Bed Fusion (PBM) (All subtypes except SLM and Multi-Jet Fusion)

Question 9

AM processes for polymers

Answer 9

• Binder Jetting (ColorJet Printing (CJP) only)
• Material Jetting (Polyjet)
• Material Extrusion (Fused Deposition Modelling (FDM))
• Powder Bed Fusion (PBM) (Only SLS and MJF)
• Multi-Jet Fusion only accepts PA12 thermoplastic
• Vat Photopolymerisation (All subtypes) (Photopolymers only)
• Sheet Lamination (All subtypes except UAM)

Question 10

AM processes for accurate parts

Answer 10

• Material Jetting (Polyjet)
• Powder Bed Fusion (PBM) (All subtypes except SLS)
• Vat Photopolymerisation (All subtypes)

Question 11

AM processes for complex geometries

Answer 11

• Binder Jetting (Digital Part Materialisation (DPM) only)
• Directed Energy Deposition (DED) (Laser Metal Deposition (LMD) only)
• Powder Bed Fusion (PBM) (Selective Laser Melting (SLM) only)

Question 12

AM processes for dense / functional parts

Answer 12

• Directed Energy Deposition (DED) (All subtypes)
• Material Extrusion (Fused Deposition Modelling (FDM))
• Powder Bed Fusion (PBM) (All subtypes except SLS)

Question 13

AM processes for cost effective

Answer 13

• Directed Energy Deposition (DED) (All subtypes)
• Material Jetting (Polyjet)
• Powder Bed Fusion (PBM) (Selective Laser Melting (SLM) and Multi-Jet Fusion only)
• Sheet Lamination (All subtypes)

Question 14

Fast AM processes

Answer 14

• Binder Jetting (All subtypes)
• Directed Energy Deposition (DED) (Electron Beam Direct Manufacturing (EBDM) only)
• Material Jetting (Polyjet)
• Powder Bed Fusion (PBM) (All subtypes)
• Sheet Lamination (All subtypes)

Question 15

AM processes for good surface finish

Answer 15

• Material Jetting (Polyjet)
• Powder Bed Fusion (PBM) (Electron Beam Melting (EBM) only)
• Vat Photopolymerisation (All subtypes)

Question 16

AM processes for repairs

Answer 16

• Directed Energy Deposition (DED) (All subtypes)

Question 17

AM processes that require post-processing

Answer 17

• Binder Jetting (All subtypes)
• Material Jetting (Polyjet)
• Powder Bed Fusion (Multi-Jet Fusion only)
• Vat Photopolymerisation (All subtypes)

Question 18

Q: How cooked are we?

Answer 18

A: Yes.