Uporaba "dukta" tehnike zarezovanja pri izdelavi izdelka

diplomsko delo

Jaka Turk (Author), Milan Šernek (Reviewer), Mirko Kariž (Mentor), Manja Kitek Kuzman (Co-mentor)

Abstract

V diplomskem delu smo analizirali površino bukovega (Fagus sylvatica L.) in smrekovega (Picea abies (L.) Karst.) lesa, po obdelavi z dielektrično barierno razelektritveno (DBD) plazmo s plavajočo elektrodo. Znano je, da na učinek obdelave površin lesa s plazmo vplivajo zunanji (lastnosti materiala in plina, dimenzije elektrod in reaktorja, električna moč, čas tretiranja itd.) in notranji (lastnosti plazme) dejavniki. Pojav plazme smo posneli s fotokamero in analizirali z računalniškim programom. Z določanjem stičnih kotov vode na obdelanih in neobdelanih površinah lesa smo preučili vpliv spreminjanja zunanjih parametrov naprave na omočljivost lesa. Zunanji parametri, ki smo jih spreminjali, so bili podajalna hitrost, razdalja med dielektrikoma (RME) in oddaljenost površine lesa od dielektrikov (RMES). Z vrstičnim elektronskim mikroskopom smo opazovali strukturo in topografijo površin vzorcev. Izmerjene sive vrednosti analiziranih razelektritev pri obdelavi lesa bukve so bile višje kot pri obdelavi lesa smreke. Rezultati so pokazali, da se stični kot kapljic vode zmanjša z zniževanjem podajalne hitrosti. Površino smrekovega lesa voda bolje omaka pri RMES 0,5 mm, pri bukovini pa pri 1 mm. Optimalna razdalja pri smrekovem vzorcu med elektrodama je 8 mm, pri bukovem pa so najboljši rezultati pri 10 mm.

Keywords

preskušanje vzorcev dukte;laserski razrez;oblikovanje;razvoj izdelka;

Data

Language:	Slovenian
Year of publishing:	2019
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[J. Turk]
UDC:	630*832.282
COBISS:	3113097
Views:	529
Downloads:	177
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Use of the "dukta" cutting techinque in manufacturing a product
Secondary abstract:	The thesis presents the use of the "dukta" cutting technique in the manufacture of a product. The goal of the thesis was to test various cutting patterns, their impact on panel bending and product design using dukta patterns and the production of a prototype wooden computer case. In the first part of the research, we tested various patterns of cutting of plywood and their influence on bending. For the preparation of specimens and the product, we used plywood of different thicknesses, which were cut differently with a laser and tested using a three-point bending test with specially designed fixtures. We then designed in the SolidWorks computer program a wooden computer case using the selected cutting pattern. Laser cutting was used for cutting the computer case. Besides the appearance, the size of the radius which we could achieve in curvature, the size of the necessary force needed to bend the dukta pattern and the resistance to dynamic loads were all important when selecting the type of dukta cutting pattern used.
Secondary keywords:	testing dukta patterns;laser cutting;design;product development;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	IX, 43 str.
ID:	11227611