Selective laser melting

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Selective laser melting (SLM)

The technology stands out mainly as a method to create complex-shape metal parts that are difficult to process using conventional procedures. A metallic powder of a prescribed granularity is spread out on each layer of the model’s printing area and selectively melted using laser. This creates an interlayer bond between the current and the preceding layer; this process repeats itself up to the final shape. This great benefit of this technology is that it enables the creation of any complex structures.

TruPrint 1000

One of the main assets of this printer is a small printing area which enables a relatively low-cost operation, and makes it easier to cover the whole printing platform with parts for printing. This leads to a higher material efficiency. The printer is equipped with one 200W laser device.

Product examples:

Technical parameters:

Building space	98 x 98 x 100 mm
Layer thickness	optional in the range 10 µm – 50 µm
Beam diameter	55 µm
Available materials	Stainless steel	SS630
	Tool steels	1.2709
	Aluminium alloys	AlSi10Mg
	Nickel-based alloys	In-718
	Cobalt-Chrom	CoCr
	Copper-based alloys	CuNi2
	Titanium-based alloys	Ti6Al4V ELI

SLM 280^HL

This machine can produce metal parts with minimum porosity. It is equipped with one laser of the Yb:YAG with the maximum power of 400W.

Product examples:

Technical parameters:

Bulding space	280 x 280 x 365 mm
Layer thickness	optional in the range 20 µm – 70 µm
Beam diameter	80 µm – 115 µm
Available materials	Titanium alloys	Ti6AI4V, Ti6AI7Nb
	Stainless steels	1.4404 (316L), 1.4540 (15-5PH),
	Tool steels	1.2344 (H13), 1.2709
	Aluminium alloys	AISi12, AISi10Mg, AISi 7Mg, AISi9Cu32
	Cobalt-Chrom
	Nickel-based alloys	Inconel 718, Inconel 625, Inconel 939, Hastelloy X

EOS M 290

EOS M 290 can work with metallic powders that range from aluminium alloys to steel and titanium alloys. The printing machine offers an industrial solution, incorporating a sifting station, which reduces waste materials and the costs of labour. The laser achieves a power of 400 W.

Technical parameters:

Building space	250 x 250 x 325 mm
Layer thickness	optional in the range 20 µm – 60 µm
Beam diameter	100 µm
Available materials	Titanium alloys	Ti6AI4V
	Steels	1.4404 (316L), MaragingSteel MS1
	Aluminium alloys	EOS Aluminium AlSi10Mg
	Cobalt-Chrom alloys	MP1
	Nickel-based alloys	Inconel 718, Inconel 625, EOS NickelAlloy HX

Schematic images of 3D printing technologies are used with the permission of Prof. Steffen Ritter.

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