АНАЛІЗ СПОСОБІВ ОТРИМАННЯ ЗАГОТОВОК КРИВОЛІНІЙНОЇ ФОРМИ

Степан Грицак

doi:10.36930/42174302

Authors

S.A. Hrytsak Ukrainian National Forestry University

DOI:

https://doi.org/10.36930/42174302

Keywords:

wood, bending, curvilinear workpieces, technology, analysis, method.

Abstract

Four ways of obtaining curvilinear blanks are analyzed. It is indicated that obtaining curvilinear blanks by bending the whole wood is the most accepted variant in terms of rational use of the resource, technical and economic indicators and the scheme of organization of the technological process. However, the technological possibilities of obtaining the maximum ratio of thickness (h) of the workpiece to the bending radius (R) for different breeds are known and completely exhausted. To achieve smaller bending radii, combined with bending in different planes, it is possible with the prior modification of wood by compression along the fibers. However, there is no information on the physico-mechanical and rheological characteristics of such wood, as well as on the technological parameters of its obtaining. This contributes to the need for research in this direction.

References

Voytovych I.G. Osnovi tekhnologії virobіv z derevini [The basic technology of wood]. – Textbook. –Lviv: Kraine andeljat, 2010. – 304 p. (in Ukrainian).

Gayda S.V., Voronovich V.V. (2011): Porіvnyal'niy analіz gnuttya vzhivanoї derevini rіznikh porіd ta vіkovikh kategorіy [Comparative analysis of bending particularities for various post-consumer wood species and age categories]. Forestry, Forest, Paper and Woodworking Industry 37(1): 84-88 (in Ukrainian).

Gayda S.V., Voronovich V.V. (2011): Issledovanie osobennostey gnut'ya vtorichno ispol'zuemoy drevesiny [Investigation of the features of bending of post-consumer wood]. Scientific progress – creative young: proceedings of the International Scientific Conference, Mari State University: 190-192 (in Russian).

Gayda S.V., Voytovych I.G. (2017): Дослідження міцності та стійкості елементів ґратчастих меб-левих виробів із вживаної деревини / Doslidzhennya mitsnosti ta stiykosti elementiv gratchastykh meblevykh vyrobiv iz vzhyvanoyi derevyny [Durability and stability of elements for beam furniture products made from post-consumer wood are investigated]. Bulletin of KhNTUA 189:62-70 (in Ukrainian).

Gayda S.V. (2017): Tekhnologiya i svoystva mebel'nogo shchita iz vtorichno ispol'zuemoy drevesiny [A technology and properties of furniture board made of post-consumer wood]. Actual problems of forest complex 48:34-38, (in Russian).

Gayda S.V. (2016): Технологічні підходи до поверхневого очищення вживаної деревини голко-фрезерним інструментом / Tekhnolohichni pidkhody do poverkhnevoho ochyshchennya vzhyvanoyi derevyny holkofrezernym instrumentom [Technological approaches to cleaning of surface of post-consumer wood of needle-milling tools]. Bulletin of KhNTUA 178:3-11 (in Ukrainian).

Gayda S.V., Ya.M. Bilyy (2016): Дослідження формостійкості клеєних щитів із вживаної дереви-ни / Doslidzhennya formostiykosti kleyenykh shchytiv iz vzhyvanoyi derevyny [The investigation of the shape stability of glued panels made of post-consumer wood]. Forestry, Forest, Paper and Woodworking Industry 42: 69-79 (in Ukrainian).

Gayda S.V. (2016): Research on physical and mechanical characteristics of front blockboards made from post-consumer wood [Дослідження фізико-механічних характеристик фасадних столярних плит із вживаної деревини]. Forestry, Forest, Paper and Woodworking Industry 42: 33-50.

Gayda S.V. (2016): Formoustoychivost' stolyarnykh plit iz vtorichno ispol'zuemoy drevesin [A form of stability of blockboards made of post-consumer wood]. Actual problems of forest complex 46:148-153, (in Russian).

Gayda S.V. (2016): Ekologo-tekhnologicheskiye aspekty pererabotki vtorichno ispol'zuyemoy drevesiny dlya proizvodstva pressovannykh materialov [Ecological and technological aspects of recycling post-consumer wood for production compacted materials]. Lesnoy vestnik / Forestry bulletin of MSFU 20(3):15-22 (in Russian).

Gayda S.V. (2015): Modeling properties of blockboards made of post-consumer wood on the basis of the finite element method. Forestry, Forest, Paper and Woodworking Industry 41:39-49.

Gayda S.V. (2015): Issledovanie fiziko-mekhanicheskikh svoystv vtorichno ispol'zuemoy drevesiny [Investigation of physical and mechanical properties of post-consumer wood]. Actual problems of forest complex 43:175-179, (in Russian).

Gayda S.V. (2014): Techniques for recycled of post-consumer wood in the production of quality particleboard. Forestry, Forest, Paper and Woodworking Industry 40:41-51.

Gayda S.V. (2014): Teoreticheskoye obosnovaniye podkhoda po prognozirovaniyu prochnosti drevesnostruzhechnykh plit iz vtorichno ispol'zuyemoy drevesiny [The theoretical rationale for the approach on the prediction the strength of particleboard from recycled wood]. Actual problems of forest complex 38:212-216 (in Russian).

Gayda S.V. (2013): Tekhnologії ta rekomendatsії do vikoristannya vzhivanoї derevini v derevoobroblennі [Technologies and recommendations on the utilization of post-consumer wood in woodworking industry]. Forestry, Forest, Paper and Woodworking Industry 39(1):48-67, (in Ukrainian).

Gayda S.V. (2012): Production techniques and properties of fuel pellets produced from post-consumer wood // Forestry, Forest, Paper and Woodworking Industry. 38: 112-150.

Gayda, S., Dyak, T. (2011): The analysis of economic efficiency of post-consumer wood use for particleboard manufacture for LLC Swisspan Limited // Forestry, Forest, Paper and Woodworking Industry. 37.2:129-136.

Kostrikov P.V. Proizvodstvo gnutokleyenoy mebeli [Production of curved furniture]. – M., 2008. – 282 p. (in Russian).

Dankov A.S. Gnut'ye massivnoy drevesiny - perspektivnaya resursosberegayushchaya tekh-nologiya budushchego [Bending massive wood - a promising resource-saving technology of the future] // Restoration of the ecological-resource potential of agroforestry forests, afforestation and environmental management in the Central forest-steppe and southern Russia. – Voronezh, 2008. – p. 22-24. (in Russian).

Maslenkov F.N. Mebel'. Obraztsy i razmery mebel'nykh izdeliy [Furniture. Samples and dimensions of furniture products]. - M .: Coiz, 1948. – 120 p. (in Russian).

Dankov A.S. Problemy i perspektivy gnut'ya massivnoy drevesiny [Problems and prospects of bending massive wood] // Forest. The science. Youth VGLTA - 2006. - Voronezh, 2006. - p. 288-290.

Dankov A.S.. Razrabotka tekhnologii gnut'ya massivnoy drevesiny s ispol'zovaniyem SVCH – nagreva [Development of technology for bending solid wood using microwave heating]: Thesis for the degree of candidate of technical sciences: 05.21.05. – Voronezh, 2009. – 145 р. (in Russian).

Internet: http://www.promwood.com/produkziya/hotovaja_produkcyja/mebel/mebel/html