Vpliv tehnoloških in geometrijskih parametrov rezila na kakovost obdelane površine smrekovine

diplomsko delo - visokošolski strokovni študij

Andrej Gorišek (Author), Dominika Gornik Bučar (Reviewer), Miran Merhar (Mentor)

Abstract

Raziskovali smo vplive tehnoloških in geometrijskih parametrov rezila na kakovost obdelane površine smrekovine. Odrezovali smo premočrtno v vzdolžni smeri (90°-0°). Eksperiment je bil razdeljen na štiri dele. V prvem delu smo spreminjali rezalno hitrost za 0,5 m/s od 0,2 m/s do 4,2 m/s, prsni kot je znašal 20°. V drugem delu smo odrezovali z različnimi prsni koti (5°, 10°, 15°, 20°, 25°, 30°, 35° in 40°) in rezalno hitrostjo 1,2 m/s. V tretjem delu smo pri prsnem kotu 30° in rezalni hitrosti 1,2 m/s spreminjali inklinacijske kote (0°, 20°, 30°, 40° in 50°). V četrtem delu smo odrezovali glede na različno usmeritev tkiva (0°, 30°, 60° in 90°), prsni kot je znašal 20° in rezalna hitrost 1,2 m/s. Debeline odrezkov so bile 0,05 mm, 0,1 mm in 0,15 mm. Za vsako kombinacijo parametrov smo naredili tri reze in izmerili profil površine na ranem in kasnem lesu. Glede na izmerjen profil površine so bili izračunani parametri Ra, Rz in Rmax. Najkakovostnejša površina je bila pri prsnem kotu 15°, kotu inklinacije 40°, usmerjenostjo tkiva 0°, rezalno hitrostjo med 1,7 m/s do 2,2 m/s ter debelino odrezka 0,05 mm.

Keywords

odrezovanje;hrapavost površine;smrekovina;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[A. Gorišek]
UDC:	630*822.33
COBISS:	2593161
Views:	296
Downloads:	72
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Influence of technological and geometrical blade parameters on the quality of machined spruce wood surface
Secondary abstract:	The influence of technological and geometrical blade parameters on the surface quality of machined spruce wood surface has been investigated. The orthogonal linear cutting technique along the grain (90°-0°) was used. The experiment was divided in four parts. In the first part the cutting speed was altered for 0.5 m/s from 0.2 m/s to 4.4 m/s and the rake angle was 20°. Different rake angles (5°, 10°, 15°, 20°, 25°, 30°, 35° and 40°) and cutting speed 1.2 m/s were used in the second part. At rake angle 30° and cutting speed 1.2 m/s oblique angles were altered (0°, 20°, 30°, 40° and 50°) in the third part. In the fourth part we were cutting with different grain direction (0°, 20°, 30°, 40° and 50°) at rake angle 20° and cutting speed of 1.2 m/s. The chip thicknesses ware 0.05 mm, 0.1 mm and 0.15 mm. For each combination of parameters three cuts were made and then the profile of the surface was measured, separately on early wood and late wood. Based on the profile the surface parameters Ra, Rz and Rmax were calculated. The best surface quality was at the rake angle 15°, oblique angle 40°, cutting speed between 1.7 m/s and 2.2 m/s and chip thickness 0.5 mm.
Secondary keywords:	cutting;surface roughness;spruce wood;
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	XII, 57 f., [12] f. pril.
ID:	11928319