Optimization of Laser Transmission Welding Parameters Using Chicken Swarm Optimization Algorithm

2017 ◽  
pp. 142-161
Author(s):  
Bappa Acherjee ◽  
Debanjan Maity ◽  
Arunanshu S. Kuar ◽  
Souren Mitra ◽  
Dipten Misra
Keyword(s):  
Process Parameters ◽  
Research Work ◽  
Parametric Modeling ◽  
Weld Strength ◽  
Welding Parameters ◽  
Swarm Optimization ◽  
Laser Transmission Welding ◽  
Cycle Times ◽  
Increasing Demand ◽  
Chicken Swarm Optimization

The ever-increasing demand of high quality joints with improved cycle times leads the industries, those involve welding of plastics, to use laser for welding plastics. Laser transmission welding is the latest development in the field of welding of plastics. In present research work, experimental investigation, parametric modeling and optimization of laser transmission welding of polycarbonate is carried out. A systematic experimental plan is executed using central composite design of response surface methodology (RSM). Mathematical models are developed using RSM for establishing an interrelationship between the process parameters and the responses of interest. Chicken swarm optimization (CSO) algorithm is employed with the developed RSM models to set the optimal process parameters combinations to achieved desired weld qualities. Here, the objectives are set as to increase the weld strength and decrease the weld width independently, as well as simultaneously. The interdependent parametric trends are also studied and discussed.

Laser Transmission Welding of Thermoplastics—Part II: Experimental Model Validation

2007 ◽  
Vol 129 (5) ◽  
pp. 859-867 ◽  
Author(s):  
James D. Van de Ven ◽  
Arthur G. Erdman
Keyword(s):  
Polyvinyl Chloride ◽  
Welding Process ◽  
Weld Strength ◽  
Average Error ◽  
Welding Parameters ◽  
Laser Transmission Welding ◽  
Weld Width ◽  
Additional Information ◽  
Primary Model ◽  
Clamping Pressure

Two laser transmission welding experiments involving polyvinyl chloride are presented that aim to validate a previously presented welding model while helping to further understand the relationship between welding parameters and weld quality. While numerous previous research papers have presented the results of laser welding experiments, there exists minimal work validating models of the welding process. The first experiment explores the interaction of laser power and welding velocity while the second experiment explores the influence of clamping pressure. Using the weld width as the primary model output, the agreement between the welding experiments and the model have an average error of 5.6%. This finding strongly supports the validity of the model presented in Part I of this two paper set (Van de Ven and Erdman, 2007, ASME J. Manuf. Sci. Eng., 129, pp. 849–858). Additional information was gained regarding the operating window for laser transmission welding and the thermal decomposition of polyvinyl chloride. Clamping pressure was found to provide a small, but not statistically significant, influence on the visual appearance, weld width, and weld strength.

The Effects of Friction Stir Welding Parameters on the Characteristics of Banded Structure for Aluminum Alloys

2016 ◽  
Vol 710 ◽  
pp. 155-159
Author(s):  
Mariem Zoghlami ◽  
Mohammad Jahazi ◽  
Victor Songmene
Keyword(s):  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Process Parameters ◽  
Mechanical Characteristics ◽  
Research Work ◽  
Welding Parameters ◽  
Processing Conditions ◽  
Influence Of Process Parameters ◽  
Friction Stir

Since the invention of the friction stir welding, several studies have been conducted to understand the influence of process parameters on the microstructural, thermal and mechanical characteristics to improve the weld quality. Banded structures better known under the name of "onion rings" are one of phenomena that appear in the microstructure during this process. The welding parameters leading to their appearance as well as their effect on the quality of the joint are still subject to much research with different conclusions. In this context, the objective of this research work is to determine various characteristics of the ‘onion rings’ and correlate them to processing conditions.

Analysis of Arc Welded Thin-Walled Cylinders to Investigate the Effects of Welding Process Parameters on Residual Stresses

2008 ◽  
Vol 575-578 ◽  
pp. 763-768
Author(s):  
Afzaal M. Malik ◽  
Ejaz M. Qureshi ◽  
Naeem Ullah Dar
Keyword(s):  
Residual Stresses ◽  
Process Parameters ◽  
Arc Welding ◽  
Research Work ◽  
Three Dimensional ◽  
Welding Process ◽  
Welding Current ◽  
Element Model ◽  
Welding Parameters ◽  
Thin Walled

The research work presents a computational methodology based on three-dimensional finite element model to simulate the gas tungsten arc welding (GTAW) of thin-walled cylinders. The aim was to study the effects of two basic welding parameters (welding speed and welding current) on weld induced residual stresses. The complex phenomenon of arc welding was numerically solved by sequentially coupled transient, non-linear thermo-mechanical analysis. The accuracy of the numerical model was validated through experiments for temperature distribution and residual stresses. The results reveals that the present simulation strategy can be used as a proper tool to get the optimized welding process parameters and minimize the in service failures of thinwalled structures due to residual stresses.

Laser Transmission Welding of Thermoplastic: Effect of Process Parameters on Weld Strength

2014 ◽  
Vol 852 ◽  
pp. 463-466
Author(s):  
Se Kou Singare ◽  
Shen Gui Chen ◽  
Jian Jun Zou ◽  
Yong Zhou Lin
Keyword(s):  
Shear Strength ◽  
Cross Sections ◽  
Laser Power ◽  
Testing Machine ◽  
Polarized Light ◽  
Weld Strength ◽  
Welding Parameters ◽  
Laser Transmission Welding ◽  
Universal Testing ◽  
Weld Area

This paper investigates the effect of the laser welding parameters such as laser power, welding speed on weld strength. A 30W fiber laser with wavelength 1064nm has been used to weld transparent and absorbing acrylics in lap weld configuration. The force at break of the lap welds was assessed on the Universal testing machine,the shear strength was calculated by dividing the force at break by the weld area. Weld fracture surfaces and weld cross-sections were also analyzed under microscope using reflected polarized light to qualitatively assess the weld quality.

scholarly journals Addressing Semantics Standards for Cloud Portability and Interoperability in Multi Cloud Environment

Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 317
Author(s):  
Chithambaramani Ramalingam ◽  
Prakash Mohan
Keyword(s):  
Service Providers ◽  
Research Work ◽  
Cloud Service ◽  
Cloud Services ◽  
Cloud Environment ◽  
Cloud Service Providers ◽  
Application Programming ◽  
Increasing Demand ◽  
Programming Interfaces ◽  
Multi Cloud

The increasing demand for cloud computing has shifted business toward a huge demand for cloud services, which offer platform, software, and infrastructure for the day-to-day use of cloud consumers. Numerous new cloud service providers have been introduced to the market with unique features that assist service developers collaborate and migrate services among multiple cloud service providers to address the varying requirements of cloud consumers. Many interfaces and proprietary application programming interfaces (API) are available for migration and collaboration services among cloud providers, but lack standardization efforts. The target of the research work was to summarize the issues involved in semantic cloud portability and interoperability in the multi-cloud environment and define the standardization effort imminently needed for migrating and collaborating services in the multi-cloud environment.

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