The easiest way how to produce .sldasm assembly files from other CAD sources (including DWG) would be of course to use SolidWorks itself. If you do not have access to this commercial CAD software, you can always check some of the alternatives, including dedicated CAD translators and conversion programs.
Convert AutoCAD drawing to SolidWorks assembly data.
We have found 2 software records in our database eligible for .dwg to .sldasm file format conversion.
Microsoft Windows software - convert dwg to sldasm on Windows
A popular is 2D and 3D CAD (computer-aided design) and CAE (computer-aided engineering) construction software for Microsoft Windows developed by SolidWorks Corporation.
SolidWorks is distributed in three distributions: Solidworks Premium, Solidworks Professional and SolidWorks Standard.
Convert from dwg file
to sldasm file
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned dwg to sldasm. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A dedicated CAD converter with a large file format support that allows users to convert (translate) CAD designs or drawings between different formats. CrossManager is a commercial product, you will need to purchase a license. It is available in English, French, German, Italian, Czech, Chinese, Russian and Korean language.