Corresponding Author

Paper:	idn630
Name:	P. Särkiniemi
Company:	VTT Manufacturing Technology
Address:	P.O.BOX 1704 FIN-02044 VTT
Country:	Finland
Phone:	00358 9 4566536
Fax:	00358 9 456 7002
Email:	pauli.sarkiniemi@vtt.fi