Effect of laser surface treatment on the quality of microstructure in recycled Al-Zn-Si cast alloy
Journal Title: Production Engineering Archives - Year 2014, Vol 0, Issue 1
Abstract
Recycled Al-Zn-Si casting alloys can often be used in new cast products for mechanical engineering, in hydraulic castings, textile machinery parts, cable car components or big parts without heat treatment. Improved mechanical properties and favourable of recycled mi-crostructure of Al-alloys can often significantly increase the lifetime of casting and reduce costs for fuel and reduction of environmental loading. The paper is focused on using one of possible technologies that provide increased mechanical properties of recycled aluminium cast alloys for automotive industry, and that is laser surface hardening. For study was used recycled AlZn10Si8Mg cast alloy. The effect of laser beam Nd: YAG lasers BLS 720 was evaluated with the laser power 50 W and 80 W on the surface of samples. The final microstructure of aluminium alloys depend on the laser process parameters. The changes of microstructure as a grain refinement of the microstructure after laser surface hardening was observed by using classical techniques of etching and deep etching with concentrated HCl. Microstructure was evaluated on an optical microscope Neophot 32 and SEM.
Authors and Affiliations
Emília Ďuriníková, Eva Tillová, Mária Chalupová, Norbert Radek
Keywords
Related Articles
- EP ID EP165747
- DOI -
- Views 70
- Downloads 0
The process approach to service quality management
In this paper a model of service quality management based on the process approach has been present-ed. The first part of the article contains the theoretical framework of service quality and the process approach in manag...
Construction-fitting process organization and management in a small business
The article presents results of research concerning identification of organization schemes and management processes that make a small construction company function efficiently and hold against other entities in local mar...
Development of polyurethane paint metallic effect without cloud defect
The article presents tests results of the metallic paint system. The system consists of high solid corrosion protection primer and dual-component topcoat with a metallic gloss effect (RAL 9006). The paint system properti...
MANAGEMENT AND DECISIONS TAKING IN A CRISIS AND CHAOS PRODUCTION
The author presents theoretical and practical considerations in which strategies of enterprise management in crisis situations will be presented. Therefore, two theses have been presented: 1. proper selection of the stra...
Identifying variables that influence manufacturing product quality
In the article a risk analysis of the production process of selected products in a plant producing votive candles was conducted. The Pareto-Lorenz diagram and FMEA method were used which indicated the most important area...