400 099 75763D printing, also known as additive manufacturing, is a magical technology that creates three-dimensional objects by adding materials layer by layer. There are various 3D printing technologies, including stereolithography (SLA), fused deposition modeling (FDM) and selective laser melting (SLM), which are widely used in many industries such as medicine, construction, aerospace, etc.
The following shares a typical metallographic structure picture of common metal parts made by laser melting powder materials:
 
 
S136sample
 
   
  
50X 50X
 
 
316L Stainless steel sample
 
   
  
50X 50X
 
 
Low Carbon Steel
 
   
  
50X 50X
 
 
S136 Sample
 
   
  
50X 50X
 
 
Aluminum Alloy AlSi10Mg
 
   
  
50X 50X
 
 
Aluminum Alloy AlSi10Mg
 
   
  
100X 100X
 
 
Titanium Alloy
 
   
  
100X 500X
 
 
Titanium Alloy
 
   
  
500X 500X
 
 
Titanium alloy powder
 
   
  
50X 100X
 
 
Copper Alloy
 
   
  
50X 200X
 
 
High temperature alloys
 
   
  
100X 200X
*The above pictures may not be reproduced without permission, otherwise legal liability will be pursued.
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