EFFECT OF SURFACE PRE-TREATMENT, TEXTURED PATTERN ON TI6AL4V ALLOY SUBJECTED TO FLUCTUATING SERVICE CONDITIONS |
Author(s): |
Mr.Nitesh S Hirulkar |
Keywords: |
Surface preparation, Surface texturing, brazing-hybrid joint. |
Abstract |
Due to the demand for light-weight constructions to reduce fuel consumption especially in the aerospace and automotive industries, titanium alloys stand out as the conventional choice for light weight structures. Adhesive bonding of titanium is an appealing route for joint design, also for the possibility of joining it with dissimilar materials. The realization of a strong joint depends not only on the joint design and type of adhesive, but also on the preparation of the adhering surface. In this regards many researcher have studied the static behaviour of single lap joint which depend on various factors namely adhesive thickness, adherent thickness, surface roughness, surface pre-treatment, type of joints and also influence of texture patterns on adhesion strength is consider. In this contexts investigation can be done on the effect of finest bond strength surface preparation methods for titanium such as Laser treatment, Sol-gel, Plasma spray, Chromic acid anodisation, NaOH anodisation on texture patterns produce by one of the surface texturing methods such as Laser ablation ,Micro-milling, Micro-EDM. The objective of proposed work is preliminary investigation of laser texturing on Ti6Al4V alloy and impose to different surface preparation methods .In the presented work hybrid joint is suggested by brazing welding process ,because of many advantages such as it can join variety of dissimilar metals, easily join different thickness, ease of manufacturing and repeatability. Brazing fillet at 45° to reduce the peel stress and increasing the surface adhesion for bonding. Particularly specific surface texturing is proposed by laser machining, the combine effect of finest surface preparation methods on laser textured pattern with brazed-bonded hybrid joint will be prepared to enhance the strength of adhesively bonded joints, and results compared to textured sand blasted surface.. |
Other Details |
Paper ID: IJSARTV Published in: Volume : 2, Issue : 3 Publication Date: 3/26/2016 |
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