The use of ceramic feedstock in pellet form allows the Pam Series MC users to benefit from an adapted formulation to their projects at its lowest cost.

Process presentation

These two parts were 3D printed using INMATEC Technologies GmbH feedstock.

Feedstock presentation

The feedstock is based on an alumina powder (Al2O3, 96 %, KMS-96 BO (Martinswerk) and a thermoplastic binder system for the powder injection moulding process.

This material is an industrial CIM feedstock developed by INMATEC Technologies GmbH for injection moulding process.

Green parts need a binder removal in a two-step debinding process before being sintered. ( Discover the process)

First debinding step is dissolving the binder in a water bath.

In the second debinding step the remaining binder is thermally removed.
These general guidelines are based on the processing of test parts with a wall thickness of 5mm.

Material reference: INMAFEED K1008
Ceramic : Aliminium oxid (Al2O3, 96 %)
Powder supplier : Martinswerk
Powder reference : MARTOXID® KMS-96/BO

Binder basis	Polyolefine based binder system.
Appearance	White to greyish pellets
Quality after sintering	Al2O3, 96 %, KMS-96 BO (Martinswerk)
Density	± 3,8 g/cm3
Shrinkage (approx.)	15,5%

Main 3D printing settings

Green part presentation

Hexagon with lattice structure : This part has been 3D printed with an internal porous structure.
Laboratory cup : This part has been 3D printed with a 100% infill density.

Debinding steps

Recommendations for the solvent de-binding (water bath)
It is recommended to debind the injected pieces in a circulating water bath at 30 °C.

Segment	From	To	Heating rate	Dwell time	Segment duration	Duration in total
0		20°C			0 h	0 h
1	20°C	80°C	180 K/h		0,3h	0,3 h
2	80°C	80°C	0 K/h	4 h	4 h	4,3 h
3	80°C	145°C	20 K/h		3,3 h	7,6 h
4	145°C	155°C	5 K/h		2 h	9,6 h
5	155°C	160°C	2 K/h		2,5 h	12,1 h
6	160°C	160°C	0 K/h	4 h	4 h	16,1 h
7	160°C	170°C	2 K/h		6,7 h	22,8 h
8	170°C	220°C	10 K/h		5 h	27,8 h
9	220°C	300°C	20 K/h		4 h	31,8 h
10	300°C	300°C	0 K/h	2 h	2 h	33,8 h
11	300°C	20°C	150 K/h		1,9 h	35,6 h

Sintering steps

Recommendations for the Sintering (oxidic)

Segment	From	To	Heating rate	Dwell time	Segment duration	Duration in total
0		20°C			0 h	0 h
1	20°C	300°C	130 K/h		2,2h	2,2 h
2	300°C	300°C	0 K/h	1 h	1 h	3,2 h
3	300°C	1 500°C	130 K/h		9,2 h	12,4 h
4	1 500°C	1 620°C	40 K/h		2 h	9,6 h
5	1 620°C	1 620°C	0 K/h	1 h	1 h	16,4 h
6	1 620°C	900°C	130 K/h		5,5 h	21,9 h
7	900°C	25°C	160 K/h		5,5 h	27,4 h

Sintered results