Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10673983 | CIRP Annals - Manufacturing Technology | 2011 | 4 Pages |
Abstract
By using additive manufacturing processes various powder materials can be melted and geometrically complex parts can be built. There is a need for high energy density to melt a metal powder layer locally. Therefore a laser beam is used to induce the required temperature level. To attain a more homogeneous temperature distribution a heating unit is integrated. To identify the thermal influences a model has been developed and validated by using tungsten carbide. To evaluate the achieved results different quality criteria have been determined. However, both process stability and part quality can be increased by minimizing temperature gradient mechanisms.
Related Topics
Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
M.F. Zaeh, M. Ott,