Wyniki wyszukiwania - BazTech

1

Evaluation of the roundness quality of galvanized steel plate due to variations in cutting speed and nozzle diameter during the laser cutting

Aulia U., Akhyar Akhyar

Journal of Achievements in Materials and Manufacturing Engineering

|

2023

|

Vol. 118, nr 2

62--68

EN

Purpose Generally, laser cutting processes aim to cut materials with high accuracy, as well as precise and near-perfect sizes and results. The purpose of this study is to evaluate the roundness quality of the holes cut by laser cutting on galvanised steel plates; two variations are given, such as cutting speed and nozzle diameter. Design/methodology/approach The type of laser used is a fibre laser. The material used is galvanized steel with a thickness of 3 mm with dimensions of 200 mm in length and 200 mm in width. A round profile is good if the distance between the points of the geometric shape is the same distance from the centre point. Findings The measurement results show that the smallest radius deviation is with an average value of 20.08 mm at a nozzle diameter of 2.5 mm and a cutting speed of 3 m/min, close to the initial radius value of 20.00 mm. Research limitations/implications During the laser cutting process, The best roundness quality is the combination of a nozzle diameter of 2.5 mm and a cutting speed of 3 m/min with a small deviation (the index deviation is 0.4%). At the same time, the biggest deviation in this experiment is the combination of parameters with a nozzle diameter of 3 mm and a cutting speed of 4 m/min (the maximum deviation value is 1%). Practical implications The use of the proposed nozzle diameter and cutting speed approach is an important requirement for industrial applications with laser cutting to get the right product for its intended use. Originality/value This article presents different nozzle diameters and cutting speeds to reveal the roundness quality due to these variations, where the roundness quality will be adapted for a particular application.

2

Trwałość elewacyjnych płyt kompozytowych z okładzinami z blachy aluminiowej

Wójtowicz M.

Przegląd Budowlany

|

2016

|

R. 87, nr 5

54--56

PL

Elewacyjne wyroby z aluminium znajdują powszechne zastosowanie w budownictwie, szczególnie do wykonywania okładzin wentylowanych. Jako wykończenie dużych powierzchni stosuje się odpowiednio wyprofilowane płyty kompozytowe, których zewnętrzne warstwy stanowią zabezpieczone blachy aluminiowe. Do oceny trwałości porównano płyty kompozytowe z blachami ze stali ocynkowanej i powlekanej metodą „coil coating”.

EN

Facade aluminum products are widely used in construction, especially for making ventilated claddings. Composite panels appropriately contoured are used as a finishing of large surfaces. The outer layers on these panels are the protected aluminum sheets. For the purpose of evaluation of the durability, two kinds of composite panels: with the sheets of galvanized steel and coated using the „coil coating” methods, were compared.

3

Korozja profili okapowych

Zubielewicz M., Gawron M.

Materiały Budowlane

|

2016

|

nr 5

123--124

4

Odporność korozyjna powłok organicznych na blachach stalowych ocynkowanych

Rolbiecka M.

Materiały Budowlane

|

2009

|

nr 6

43-45

5

The choice factors analysis influencing quality of MIG brazed joints of galvanized steel sheets

Vinas J., Kascak L., Draganovska D., Abel M.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

|

2008

|

z. 73 [253]

299-304

EN

In the paper results of metallographic analyses of joints made by MIG brazing an deep-drawed galvanized steel sheets of DC 05 EN 10152 are presented. The quality of brazed joints made by SG CuSi3 and SG CuAl8 braze with fluctuating welding rectifier CLOOS 303 MC4 was evaluated. Argon 4,80 was used as gaseous shield.