Laser joining of titanium alloy to polyamide

Autor:	Laurent Houssiau, Peter Plapper, Adham Al-Sayyad, Julien Bardon, Pierre Hirchenhahn, Prashant Lama
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	0209 industrial biotechnology Materials science Mechanical Engineering Titanium alloy Laser beam welding 02 engineering and technology Welding Industrial and Manufacturing Engineering Hybrid joining Computer Science Applications law.invention Laser beam joining 020901 industrial engineering & automation Control and Systems Engineering law Deflection (engineering) Weld pool Process optimization Process window Laser power scaling Composite material Metal–polymer assemblies Software
Zdroj:	International Journal of Advanced Manufacturing Technology. 107(5-6):2917-2925
ISSN:	1433-3015 0268-3768
Popis:	Laser-assisted metal–polymer joining (LAMP) is a novel assembly process for the development of miniaturized joints in hybrid lightweight products. This work adopts a design of experiments (DoE) approach to investigate the influence of several laser welding parameters on the strength and quality of titanium alloy (Ti-6Al-4V)–polyamide (PA6.6) assembly. Significant parameters were highlighted using the Plackett Burmann design, and process window was outlined using the Response Surface Method (RSM). A statistically reliable mathematical model was generated to describe the relation between highlighted welding parameters and joint strength. The analysis of variance (ANOVA) method was implemented to identify significant parametric interactions. Results show the prominence of focal position and laser power, as well as significant interaction between laser power and beam speed, on the joint strength. The evolution of weld defects (bubbles, excessive penetration, flashing, titanium coloring, weld pool cavities, and welding-induced deflection) along the process window was investigated using optical microscopy. The resulted deflection in titanium was quantified, and its relationship with welding parameters was mathematically modeled. Robust process window was outlined to maintain insignificant deflection in the welded joints. Results showed that the growth of weld defects correlates with a decline in joint strength. Optimal parameters demonstrated a defect-free joint, maximizing joint strength.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddbece8180018c780bd9b2e91d6ab9e4 https://researchportal.unamur.be/en/publications/4dfd232c-7e85-4cdc-be7e-f92ce2adc07a Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.