Additive Manufacturing

Case study

• practical use is shown in the production of lightweight clamping jaws for drop machine

Technologies and equipment used

DED (Directed Energy Deposition) – metal printing

Directed energy deposition is a technological process in which the fed material is melted directly at the desired location using a laser beam. The InssTek printer uses the Powder blown method, in which a powder that is entrained by an inert gas is injected into a laser-exposed area.

Parameters

• 2kW fiber laser
• 5-axis movement
• Working press 450x600x350mm
• Auto-tracking system
• 4 materials at once

 Materials

• Titanium – CP Ti, Ti-6-4
• Nickel – 713, 718, 738, Hastelloy X
• Cobalt – CoCr, Stellite 6, Stellite 21, Stellite 25
• and other

 PBF (Powder Bed Fusion) – metal printing

An even layer of powder is applied to the vertically adjustable table and then the area corresponding to the cross-section of the desired piece is melted by a laser beam. Gradual application of individual cuts achieves the desired shape.

 Aurora 3D printer – PBF technology

• 300 W laser
• Working space 200x200x250 mm
• Layer thickness:    from 0,05 mm to 0,15 mm
• Minimum resolution:   x,y, axis  – ± 0,115 mm
• z-axis – ±0,01 mm

This is the most available method of 3D printing, where a plastic string is melted and this melt is extruded by a nozzle and gradually laid by lining into individual layers.

 Plastic printers

• Průša I3 MK3S
• MakerBot Replicator 2
• Working space 250x200x150 mm
• Layer thickness 0,2 mm