Laser Pretreatment for Bonding a Sandwich Structure with CNC Support

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F22%3A10251933" target="_blank" >RIV/61989100:27360/22:10251933 - isvavai.cz</a>

Result on the web

<a href="https://dspace.vsb.cz/handle/10084/149048" target="_blank" >https://dspace.vsb.cz/handle/10084/149048</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Laser Pretreatment for Bonding a Sandwich Structure with CNC Support

Original language description

This work deals with the laser pretreatment of the surface of aluminium alloy EN AW 2017A in the form of sheets for the construction of a sandwich bonded structure. The sandwich structures consisted of two laser pretreated sheets and an aluminium alloy honeycomb. They were bonded together using two types of adhesives. One of the adhesives was a two-component polyurethane adhesive GP 40 1-1, and the other type was VHB GPH110GF adhesive film. The comparison set consisted of an industrial sandwich structure. An important part of the thesis is also the section dealing with the automation of the laser head movement using a CNC centre. The movement of the laser head in three axes was provided by manual programming. Using this, it was possible to precisely guarantee the focal length of the laser and its path of motion. The implementation of automation in the entire laser cleaning process using CNC, brings benefits in the form of speed, accuracy and repeatability. The experiment focused on the strength of bonded sandwich structures. The strength of the bonded joint was measured using a three-point bending tear-off machine. A plot of the force versus strain was recorded. The entire test progress was recorded using digital image correlation (DIC). The aim of this work is to evaluate the effect of laser surface pretreatment and the selection of different types of adhesives on the strength of the bonded sandwich structure.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20500 - Materials engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

PhD students´ day FMST 2022

ISBN

978-80-248-4653-8

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

128-131

Publisher name

Vysoká škola báňská - Technická univerzita Ostrava

Place of publication

Ostrava

Event location

Ostrava

Event date

Sep 12, 2022

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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