27
3D SYSTEMS, INC
.
PN:80-D27 Rev.B
1 . Layering module
This module consists of :
•
The roller
The roller can move in a straight line using the carriage :
•
Maximum position: 970 mm
•
Maximum speed: 800 mm/s
•
Accuracy: <1 mm
And rotate :
•
Maximum speed: 2500°/s (7 turn per second)
•
Accuracy: <5°
The combination of different movements of roller and carriage are adjustable for carrying out actions of layering such as
spreading, smoothing and compacting . The layer thickness of powder differs depending on the material properties (particle
size, flowability...) and on the desired part characteristics.
•
The scraper
Carries powder from the feeding piston to the sintering piston . The scraper
brackets are equipped with a cleaning jet to remove dust from the top of the
roller .
•
The roller cleaner
When the appropriate sequence is executed, the roller cleans itself by rotating on
a treated steel blade .
2 . Feeding piston
This piston contains the volume of powder that will be used for sintering . Its characteristics are given below:
•
Dimensions: 500 x 250 mm
•
Powder volume: 50 liters
•
Stroke: 400 mm
•
Maximum speed: 20 mm/s
•
Positioning accuracy: ± 5 µm
•
Maximum charge: 500 kg
3 . Sintering piston
The parts are manufactured on a sintering plate (positioned on a plate support), located on the sintering piston . Its
characteristics are:
•
Dimensions of the sintering plate : 250 x 250 mm with 23 .5 mm radius
•
Useful stroke: 300 mm (With a sintering plate of 25 mm thick)
•
Minimum speed 5 mm/s
•
Maximum speed: 15 mm/s
•
Positioning accuracy: ±3 µm
4 . Collecting tank
It recovers all non-sintered powders and residues of sintering that will be treated in the internal recycling system .