Lasersko daljinsko varjenje z adaptivnim sledenjem zvarnemu robu

diplomska naloga visokošolskega strokovnega študijskega programa I. stopnje strojništvo

Matic Mohar (Author), Matija Jezeršek (Mentor)

Abstract

V diplomski nalogi je opisano lasersko daljinsko varjenje z adaptivnim sledenjem zvarnemu robu. Sistem sestoji iz robotske roke, vlake nskega laserja moči 400 W, skenirne glave, kamere ter računalnika s programom za obdelavo video signala in krmiljenje skenirne glave . Sledenje zvarnemu robu se izvaja po principu laserske triangulacije in aktivnega osvetljevanja površine. Sistem, ki je še v razvojni fazi, smo v okviru te naloge eksperimentalno okarakterizirali z vidika natančnosti sledenja, časovnega odziva na motnjo ter optimalne hitrosti varjenja nerjaveče pločevine debeline 1,5 mm. Na osnovi makrografskih slik zvarjencev smo ugotovili, da optimalna hitrost varjenja znaša 60 cm/min . , kar je 50 % višja vrednost od teoretične napovedi (40 cm/min . ). Nadalje smo ugotovili, da natančnost sledenja znaša 0,063 mm, časovni odziv pa z absolutnim krmiljenjem znaša 36 ms, s PID - krmilnikom pa 270 ms.

Keywords

diplomske naloge;laserji;lasersko varjenje;daljinsko lasersko varjenje;robotska roka;skenirna glava;

Data

Language:	Slovenian
Year of publishing:	2018
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[M. Mohar]
UDC:	621.791.725:681.5(043.2)
COBISS:	16104475
Views:	1529
Downloads:	430
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Adaptive laser welding with adaptive seam tracking
Secondary abstract:	Theme of this task is remote laser welding with adaptive seam tracking. The system consist of robot arm, fiber laser with power of 400 W, laser head, camera and computer with video signal and laser head controlling software. Remote Seam tracking is based on triangulation and active surface lighting. The system we used, which is still in development phase, has been experimentally characterized from the perspective of seam tracking, distraction time response and optimal welding speed of 1.5 mm thick stainless steel plate. Based on macrographic images of welds, we got to the point, that laser welding optimal speed is 60 cm/min, which is 50% higher than theoretical value (40 cm/min). Furthermore, we found out that seam tracking precision is 0.063 mm, time response with absolute controlling is 36 ms, and 270 ms with PID controller.
Secondary keywords:	laser;laser welding;remote laser welding;robot arm;laser head;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XIV, [56] str.
ID:	10941607