Sökning: "erik hjortsberg"

Hittade 2 avhandlingar innehållade orden erik hjortsberg.

1. 1. Experimental approaches to powder filling and lubrication in powder die pressing

   Författare :Erik Hjortsberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; XPS; friction; die filling; interference microscopy; density variations; lubrication; compaction; experimental equipment; tribology; powder metallurgy;

   Sammanfattning : There is a continuous need to improve the mechanical properties of steel parts produced through powder metallurgy in order to ensure the market growth of this sector and competitiveness against alternative production techniques. One of the more promising routes able to achieve this is to aim for components with higher densities. LÄS MER

3. 2. Studies of density variations in iron powder caused by the filling operation

   Författare :Erik Hjortsberg; Linköpings universitet; []
   Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Detailed information about the density within a part produced by compression of a granular material is perhaps the most important piece of information you need if you are to predict its properties. Nearly all mechanical properties are strongly dependent on the density and the density of a very small region within the part can potentially be disastrous if it has a density level considerably lower then the rest of the part. LÄS MER