Radially sawn timber | Zendy

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Radially sawn timber

Author(s) -

Dick Sandberg

Publication year - 1996

Publication title -

european journal of wood and wood products

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.488

H-Index - 60

eISSN - 1436-736X

pISSN - 0018-3768

DOI - 10.1007/s001070050155

Subject(s) - volume (thermodynamics) , yield (engineering) , pith , cylinder , bark (sound) , section (typography) , star (game theory) , cross section (physics) , woodworking , materials science , structural engineering , engineering , composite material , mathematics , forestry , mechanical engineering , computer science , horticulture , physics , geography , mathematical analysis , quantum mechanics , biology , operating system

This work presents a new method of sawing to produce pith-free timber with vertical annual rings and without juvenile wood. The method, which is called star-sawing, gives sawn timber with two different shapes, viz, conventional timber with a rectangular cross-section and timber with a triangular cross-section. The volume yield for star-sawing has been determined with the help of computerized simulations and trial sawings. The results show that star-sawing is best suited for logs with a top diameter greater than 200 millimetres. Both a high volume yield and suitable dimensions of the sawn timber were then obtained. The volume yield of timber with vertical annual rings in star-sawing is about 0.70 calculated with regard to the top cylinder volume under bark

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