Aluminum

Prototypes from CNC milling, investment casting, Quick Sand Casting, DMLS sintering

Prototypes uses only alloys suitable for machining “fromcasting” (designed for gravity casting and employable with our quick sand casting processes) or machining from chips (designed for CNC milling).

Alligator effect:

Silicon – Yes: improves the fluidity of the cast alloy. Higher silicon content allows thinner-walled castings, however, it increases the risk of abnormal shrinkage in massive areas.
Copper-Cu: improves compactness and heat dissipation.

Prototypes DMLS metal sintering prototype

aluminium rapid prototyping — CNC milling prototype - pump impeller - Microcasting

Features

aluminum rapid prototyping

In prototyping, the combination of material and processing technique is one of the most complex choices for printing on aluminum. Running a prototype almost always requires evaluations so, for the use and consumption of engineers, average material properties obtained by prototype construction are provided. These can be used to get an idea of technical and functional compliance.

To improve machinability in aluminum rapid prototyping, it is recommended that parts undergo T6 heat treatment cycles (which also raise the overall mechanical properties).

All aluminum alloys reporting GAlSi at the beginning are:

Alloys specifically formulated for casting (G) suitable precisely for foundry processes, then specifically weighted to withstand the process of melting, part forming and subsequent solidification.

The letters AlSi indicate that it is an alloy with main constituent Aluminum and first alligant Silicon.

Foundry alloys are also recognizable by the numerical abbreviation EN AB 4xxx (4000 series).

Aluminum Alloys

Aluminum Alloy GAlSi7
Aluminum Alloy GalSi9
Aluminum Alloy GalSi9Cu1
Aluminum Alloy GalSi10

See aluminum characteristics table

Applications

Developed applications

Appliance

Grids
Caps
Knobs
Burners
Wok Supports
Tubs

Oleodynamic Applications

Distributors
Shut-off valves
Control valves

Construction of Pumps

Pump body
Carrier lantern
Mouthpieces
Valves
Shredders
Open Impellers
Closed Impellers
Single-channel impellers
Diffusers
Circulators
Supports

Electromechanics

Engine shields
Inverter boxes
Carcasses
Finned masses
Streetlights

Automotive

Racing parts
Aluminum frames
Engine cylinders
Motor heads
Brake calipers
Clutch Crankcase
Engine crankcase
Gearboxes
Frame elements
Forks

GAlSi7 EN AB 42000

Elem.	% Min	% Max
Si	6,5	7,5
Fe		0,45
Cu		0,15
Mn		0,35
Mg	0,25	0,65
Cr		-
Ni	0	0,15
Zn	0	0,15
Pb	0	0,15
Sn	0	0,05
Ti	0,05	0,20
Individual impurities		0,05
Global impurities		0,15

GAlSi9 EN AB 43100

Elem.	% Min	% Max
Si	9,00	11,0
Fe		0,45
Cu		0,08
Mn		0,45
Mg	0,25	0,45
Cr		-
Ni		0,05
Zn		0,10
Pb		0,05
Sn		0,05
Ti		0,15
Individual impurities		0,05
Global impurities		0,15

GAlSi9Cu1 EN AB 46400

Elem.	% Min	% Max
Si	8,3	9,7
Fe	0	0,7
Cu	0,8	1,3
Mn	0,15	0,55
Mg	0,30	0,65
Cr		-
Ni		0,20
Zn		0,8
Pb		0,10
Sn		0,10
Ti	0,10	0,18
Individual impurities		0,05
Global impurities		0,25

GAlSi10 EN AB 43200

Elem.	% Min	% Max
Si	9,0	11,0
Fe		0,55
Cu		0,3
Mn		0,55
Mg	0,25	0,45
Cr		-
Ni		0,15
Zn		0,35
Pb		0,10
Sn		-
Ti		0,15
Individual impurities		0,05
Global impurities		0,15

GAlSi7Mg Ti EN AB 42000

Elem.	% Min	% Max
Si	6,5	7,5
Fe		0,45
Cu		0,15
Mn		0,35
Mg	0,25	0,65
Cr		-
Ni	0	0,15
Zn	0	0,15
Pb	0	0,15
Sn	0	0,05
Ti	0,05	0,20
Individual impurities		0,05
Global impurities		0,15

GALSi11 EN AB 44000

Elem.	% Min	% Max
Si	10,0	11,8
Fe		0,15
Cu		0,03
Mn		0,10
Mg		0,45
Cr		-
Ni		-
Zn		0,07
Pb		-
Sn		-
Ti		0,15
Individual impurities		0,03
Global impurities		0,10

ALUMINUM ALLOYS CHARACTERISTICS

Alloy	UNI name	Tensile strength Rm (N/mm2)	Yield load	Elongation A %
GAlSi7 Mg Ti	EN AB 42000	140(F) / 220(T6)	80(F) / 180(T6)	2 (F) / 1 (T6)
GAlSi9	EN AB 43100	200	120	1
GAlSi9Cu	EN AC 46400	135 (F)	90 (F)	1
GalSi11	EN AB 44000	150/210	80/120	0,9

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