Mechanics & Industry
Volume 18, Number 2, 2017
|Number of page(s)||9|
|Published online||16 March 2017|
Optimization of CO2 laser welding process parameters of PP/EPDM/Clay nanocomposite using response surface methodology
1 Faculty of Mechanical Eng., Shahid Rajaee Teacher Training University, Tehran, Iran
2 Iran Polymer and Petrochemical Institute, Tehran, Iran
a Corresponding author : firstname.lastname@example.org
Received: 8 May 2015
Accepted: 27 August 2016
In recent years, polymer – based nanocomposites have found wide applications in various industries. Polypropylene / ethylene – propylene - diene monomer /Nanoclay (PP/EPDM/Nanoclay) nanocomposite is one of these materials that has many applications in automotive and aircraft industries. Welding as a fabrication process has attracted the attention of researchers for joining these materials. Among welding processes, laser welding because of its advantages can be a choice for joining of PP/EPDM/Nanoclay nanocomposites. In this paper, the effect of CO2 laser power, scan velocity, stand-off distance and clay content on impact strength of butt-welded PP/EPDM/Nanoclay 3.2 mm sheets is investigated. The response surface methodology (RSM) is used to develop a statistical model relating the above parameters to the impact strength of the weld joint. The results indicated that increase in clay content and scan velocity decreased the impact strength whereas stand-off distance increased it. The maximum impact strength of 70 J/m is achieved at laser power of about 103 W, velocity of 400 mm.min-1, stand-off-distance 8 mm and clay content of about 1.3% wt.
Key words: Polypropylene / ethylene-propylene-diene monomer / Nanoclay (PP/EPDM/Clay) / laser welding / impact strength / response surface methodology
© AFM, EDP Sciences 2017
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.