Friction stir welding/processing of metals and alloys: A comprehensive review on microstructural evolution

https://nottingham-repository.worktribe.com/preview/770243/Review%20of%20FSW%20of%20AMC_MD_2015.pdf

A review of friction stir welding of aluminium matrix composites

https://cyberleninka.org/article/n/1336791.pdf

Magnesium based surface metal matrix composites by friction stir processing

Friction stir processing (FSP) of Al6061-SiC-Graphite hybrid composites is studied in detail via force analysis, spectroscopic, microstructural and indentation studies. Effect of various tool rotat...

Friction stir processing of Al6061-SiC-graphite hybrid surface composites

Two decades of research on waste management in the circular economy: Insights from bibliometric, text mining, and content analyses

Inventory and pricing model with price-dependent demand, time-varying holding cost, and quantity discounts

Multi-objective optimization model for a downstream oil and gas supply chain

A multi-objective optimization model for tactical planning of upstream oil & gas supply chains

In the present work, the aluminum matrix composites reinforced with both SiC and graphite particles are joined using a friction stir welding (FSW) process. The wear characteristics of the welded joints were investigated at constant load of 50 N and a rotational speed of 1,000 rpm using a pin-on-disk wear testing apparatus. This study focuses on the influences of the FSW processing parameters (tool geometry, rotational speed, and welding speed) on the wear characteristics of the welded joint of the considered hybrid aluminum matrix composite under dry sliding conditions. The experimental results indicate that the wear resistance of the joint increases at high welding speeds (>45 mm/min) and/or low value of rotational speeds. Different tool pin profiles (square, octagonal, and hexagonal) are developed to perform the welding process, and the effects of the tool pin profile on the weldments were studied. It is found that joints welded with square pin profile have better wear resistance compared to the other p...

Effect of Processing Parameters on Friction Stir Welded Aluminum Matrix Composites Wear Behavior

In production-inventory control, economic order quantity (EOQ) and economic production quantity (EPQ) models are used to determine the optimal order quantities for purchasing and manufacturing. Most EOQ and EPQ models are constructed assuming constant costs. Recently, however, EOQ/EPQ models assuming varying costs (i.e., holding, ordering, and purchasing costs) have been receiving considerable attention. The objective of this paper is to review and classify EOQ and EPQ inventory models formulated under the assumption of variable holding costs. The relevant papers are reviewed and classified into three main types: time-dependent holding cost, stock-dependent holding cost, and multiple dependence or other holding cost variability. Additional classification is proposed for the reviewed models according to their objectives, solution methods, and applications. The paper identifies research trends and includes several suggestions for future research directions.

Ahmed M. Ghaithan

Papers

Inventory and pricing model with price-dependent demand, time-varying holding cost, and quantity discounts

Multi-objective optimization model for a downstream oil and gas supply chain

A multi-objective optimization model for tactical planning of upstream oil & gas supply chains

Effect of Processing Parameters on Friction Stir Welded Aluminum Matrix Composites Wear Behavior

EOQ and EPQ Production-Inventory Models with Variable Holding Cost: State-of-the-Art Review