Additive Manufacturing

Additive manufacturing (AM), sometimes referred to as 3D printing, is a manufacturing process used to produce three-dimensional solid parts and components. Objects are created using a series of additive layers put down in succession, each slightly different than the one before it, to create a finished 3-D part. Since material is added to create the part, this process is known as additive manufacturing. This process is completely the opposite of traditional part production in which a part is made by removing material through a machinig process. 


The picture shows an example of a complex part, manufactured as one piece through binder jetting, placed on the original GTP tungsten carbide powder WC701. GTP developed this powder grade especially for the use in 3D binder jetting applications. 

There are numerous advantages to the AM process, including:
  • Processing of complex parts to near net shape
  • Minimizes need for expensive tooling
  • Reduces prototyping costs
  • Faster from prototype to production
  • Potential to create distinctive alloys / microstructures
  • Smaller environmental footprint
  • Production is easily adapted to change in parts
  • Lighter weight alternative to solid parts

GTP is currently developing tungsten, molybdenum and tungsten carbide-cobalt (WC-Co) based powders ideally suited for achieving high density parts fabricated using different additive manufacturing technologies like binder jetting and powder bed fusion (Selective Laser Sintering, Electron Beam Melting, etc.).

The pictures show an ExOne binder jet 3-D printer at GTP's headquarters in Towanda, USA. In close cooperation with Exone we optimized powder properties for binder jetting applications and are already able to print and sinter finished parts in small batches.

 

The following table shows additive manufacturing methods and suitable materials. For more information, please don't hesitate to contact one of our principle scientists.

Tungsten MetalTungsten Carbide CobaltCopper Coated TungstenMolybdenum
Powder Grade DesignationAM WD100AM WD200AM WC701AM WC702AM WCuAM MoD200AM MoD300
Direct Metal Laser Sintering (DMLS, SLS, EBM)
ready-to-use

ready-to-use
---
ready-to-use

ready-to-use
Binder Jetting--
ready-to-use

ready-to-use
---
High Velocity Deposition (Cold Spray)----
ready-to-use
--

 

Click to contact:

For tungsten and molybdenum powders
e-mail Thomas Wolfe, Ph.D. or
call +1 570 268-5344
For tungsten carbide-cobalt powders
e-mail Ravi Enneti, Ph.D. or
call +1 570 268-5252
For tungsten heavy alloy powders
e-mail Salvator Nigarura, Ph.D. or
call +1 570 268-5170
Tungsten powder for direct metal laser sintering (DMLS, EBM, SLS)

 

AM WD100 a high purity spherical tungsten powder 

Particle Size (μm)D10D50D90
5-105-15>15
Bulk Density (g/cm3)8-12
Carney Flow (s/200g)15 max

 

AM WD200 a high purity spherical tungsten powder 

Particle Size (μm)D10D50D90
5-1515-30>30
Bulk Density (g/cm3)6-12
Carney Flow (s/200g)15 max

 

AM W300 a high purity crystalline tungsten powder 

Particle Size (μm)D10D50D90
10-2525-40>40
Bulk Density (g/cm3)5-10
Carney Flow (s/200g)15 max

 

Tungsten carbide-cobalt powder for binder jetting printers

 

AM WC701 a spherical tungsten carbide-cobalt powder 

Particle Size (μm)D10D50D90
10-2520-30>30
Hall Flow (s/200g)<20
App. Density (g/cm3)4-8
Co (%)11-13

 

AM WC702 a spherical tungsten carbide-cobalt powder 

Particle Size (μm)D10D50D90
5-1515-30>20
Hall Flow (s/200g)<20
App. Density (g/cm3)4-8
Co (%)11-13

 

Molybdenum powder for direct metal laser sintering (DMLS, EBM, SLS)

 

AM MoD200 high purity spherical molybdenum powder

Particle Size (μm)D10D50D90
10-2015-30>25
Hall Flow (s/200g)15 max
Bulk Density (g/cm3)4-8

 

AM MoD300 high purity spherical molybdenum powder 

Particle Size (μm)D10D50D90
15-2520-35>30
Hall Flow (s/200g)15 max
Bulk Density (g/cm3)5-10