tailieunhanh - Báo cáo lâm nghiệp: "Research on individual parameters for cutting power of woodcutting process by circular saws"

Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: Research on individual parameters for cutting power of woodcutting process by circular saws. | JOURNAL OF FOREST SCIENCE 56 2010 6 271-277 Research on individual parameters for cutting power of woodcutting process by circular saws J. Kovac M. Mikles Department of Forest and Mobile Technology Faculty of Environmental and Manufacturing Technology Technical University in Zvolen Zvolen Slovakia ABSTRACT Nowadays the wood cutting process looks like a technological scheme consisting of several connected and relatively inseparable parts. Wood crosscutting is the most widespread operation in the process of forest exploitation it is used at tree exploitation shortening stems and assortment production. The article deals with the influence of the cutting edge geometry of circular saws on the torque and also on the cutting performance at wood crosscutting therefore there is an influence on the whole cutting process. In the present article measurement procedure used measuring devices and the process of result analysis are described in detailed. Knowledge of the wood crosscutting process and choice of suitable cutting conditions and cutting tools will contribute to a reduction in production costs and to energy saving. Keywords circular saw cutting edge geometry cutting power wood crosscutting The nature of the cutting process for all ways of mechanical wood machining can be understood more easily when the elementary factors are known. Wood crosscutting is the most widespread operation in the process of forest exploitation it is used at tree exploitation shortening stems and assortment production. Longitudinal cutting is mainly applied in subsidiary enterprises sawmills and basic wood industry. Mixed cutting is used in furniture production. At the forest exploitation there comes to its application at the executing the cut on trees underlying harvesting trees by circular saws. Nowadays the wood cutting process is considered as a technological scheme. It consists of several connected and relatively inseparable parts Marko Holík 2000 . The technological system called cutting