Minimizing the Micro-Edge Damage at Each Constituent Layer of the Clad Composite during AWJM

The development of layered/clad composites with a blend of desired characteristics has emerged as a valuable substitute for expensive materials. The inherent heterogeneity offers challenges whenever the cutting of cladded plates/sheets is to be done. The conventional means of cutting such as gas/pla...

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Bibliographic Details
Published in:Materials 2020-06, Vol.13 (12), p.2685
Main Authors: Ishfaq, Kashif, Ahmed, Naveed, Rehman, Ateekh Ur, Hussain, Amjad, Umer, Usama, Al-Zabidi, Ayoub
Format: Article
Language:English
Subjects:
Abrasive cutting
Abrasive machining
Aluminum
Arc cutting
Constituents
Damage
Heat affected zone
Heterogeneity
Low carbon steels
Manufacturing
Nickel
Plasma arc heating
Polymer matrix composites
Powder metallurgy
Quality
Researchers
Stainless steel
Stainless steels
Steel alloys
Taguchi methods
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Summary:The development of layered/clad composites with a blend of desired characteristics has emerged as a valuable substitute for expensive materials. The inherent heterogeneity offers challenges whenever the cutting of cladded plates/sheets is to be done. The conventional means of cutting such as gas/plasma arc yield a poor cut quality and heat-affected zones. Abrasive waterjet machining (AWJM) is a valuable alternative to mitigate the aforesaid cutting issues. However, the intrinsic attribute of edge damage during AWJM poses a limitation on its use, especially for precision applications. Specifically, it is challenging to control the edge damage in terms of pit depth at both the constituent clad layers and addressing this challenge is the novelty of this work. The said cutting accuracy issues have been thoroughly investigated herein. Four key control parameters of AWJM have been selected for evaluating their impact during machining of stainless-clad steel using L18 Taguchi design. Experimental results have been thoroughly examined using statistical and microscopical evidence. The optimal parametric combination resulting in the minimum magnitude of pit depth at both the clad layers has been developed and experimentally validated. The magnitude of pits depth realized at stainless steel layer (SSL) and mild steel layer (MSL) significantly reduced to 5 µm and 4 µm respectively, at the optimal parametric combination.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma13122685