Working Qualities of Indian Timbers - Part IX

This paper is in continuation of earlier papers on systematic evaluation working qualities of Indian timbers in which results of working qualities of five more species namely Araucaria cunninghamii, Azadirachta indica, Jakaranda acutifolia, Jaonessia principes and Populus ciliata have been reported after testing them under six major wood working operations - Planing, Sanding, Turning, Shaping, Boring and Mortizlng.The working quality index based on quality of worked surface and ease of working for each species are reported along with the results of Tectona grandis for comparison.These results indicate that overall performance of Araucaria, Neem and Jakaranda is better than Teak. These are easy to very easy to work with hand and machine tools.