- News article -

FIMECC’s DEMAPP program result highlight: EXCELLENT THERMAL CONDUCTIVITY OF ALUMINIUM CASTINGS

11 Jul 2012

Electronic components are becoming more powerful and generate excess heat which must be conducted away through the cast aluminium casing. This challenge has been tackled in DEMAPP program by Aalto University and Alteams. Now their systematic research efforts have lead already to a 50% improvement in thermal conductivity of cast aluminium alloys. This significant result is achieved by optimizing the alloy composition, processing conditions and heat treatment.

Electronic components are showing more and more performance all the time. However, they also generate excess heat which must be dissipated away to guarantee stable functioning of the devices. If the electronics e.g. up on the mast of mobile phone base stations overheat, the base station could malfunction. It may cut out entirely or limit the number of calls.

Die casting is an efficient and economical manufacturing process used for the mass production of metal parts. Die cast aluminium parts used as electronics housings need high heat dissipation. A FIMECC research project by Aalto University and Alteams Oy, within the DEMAPP program, has now achieved a more than 50 percent improvement in the thermal conductivity of cast aluminium alloys. As the typical values are around 120 W/mK, the project has achieved values above 190 W/mK. The result is novel, unique and highly significant, as it is the property of ready-made cast parts.

The basis of the achievement is optimization of the alloy composition. Reducing the amount of silicon in the aluminium alloy improves thermal conductivity, but it also makes processing more challenging. Controlling the processing phase is thus of key importance, as well. Both high-pressure casting and so called rheo-casting have been applied during the studies. The third important element is controlled thermal treatment at elevated temperatures. These together lead to high-quality cast aluminium parts with high thermal conductivity.

Both researchers and industry are very excited with the results which show potential to several technical and economical benefits. “The achievement shows clearly the strength of the target-oriented hands-on industry-academia R&D cooperation within DEMAPP and FIMECC”, says Markku Heino from Spinverse, the Program Manager of DEMAPP. These unique results will have an impact in many other applications as well. Improvement in heat transfer guarantees not only high-performance of devices, but also longer lifetime and significant energy and material savings.

More information:
Juhani Orkas, Professor, Aalto University, Tel. +358 50 556 2288, juhani.orkas@aalto.fi
Esa Suikkanen, Development manager, Alteams Oy, Tel. +358 400 979 939, esa.suikkanen@alteams.com
Harri Kulmala, CEO, FIMECC Oy, Tel. +358 40 840 6380, harri.kulmala@dimecc.com
Markku Heino, Program Manager, Spinverse Oy, Tel. +358 40 7191221, markku.heino@spinverse.com

- Contact us -

Want to learn how Spinverse could help you? Contact us now!



Markku Heino

Principal Consultant, D.Sc. (Tech.) +358 40 7191221

- News -

Relevant posts

KnowledgeSpinverse News

Open Innovation: Best practices for raw material companies

13 Dec 2018

Adopting a collaborative approach to innovation can greatly benefit companies in the raw material industry. Th...

Spinverse News

Nominate the CTOs of the Year 2019

23 Nov 2018

The title of the CTO of the Year is awarded annually to highlight the importance of Chief Technology Officers ...

Spinverse News

CTOs: Artificial Intelligence seen as the most interesting world changing technology

6 Nov 2018

This year the CTO Survey mapped which Radical technologies are the most interesting and in which areas Finland...

Client News

Desensitization 2.0: Desentum develops a game changer for treating allergies

29 Oct 2018

Allergy is a huge problem especially in the developed countries. Although it is seldom life-threatening, the s...

Spinverse News

Spinverse partnering to build a new Finnish battery ecosystem

18 Oct 2018

The study covers the whole value chain of the battery industry ecosystem:  Materials, Cells and modules, Appli...

Our peopleSpinverse News

Finnish innovation and research gets a boost from the government: permanent increase of EUR 100 million for funding

30 Aug 2018

”This decision is a great commitment made by the Finnish Government to develop our world-leading innovation sy...