scholarly journals Modeling and Simulation of the Robotic Layup of Fibrous Preforms for Liquid Composite Molding

2021 ◽  
Author(s):  
Vitantonio Esperto ◽  
Antonio Gambardella ◽  
Germana Pasquino ◽  
Fausto Tucci ◽  
Massimo Durante ◽  
...  
Keyword(s):  
Complex Shape ◽  
Software Tool ◽  
Transportation Systems ◽  
Manufacturing Processes ◽  
Home Automation ◽  
Liquid Composite Molding ◽  
End Effector ◽  
Composite Molding ◽  
Robotic Cells ◽  
Automated Placement

In recent years, the concepts of industry 4.0 are widely spreading in many different sectors, from agriculture to home automation, from transportation systems to manufacturing processes. One of the pillars of this concept is related to the use of robotic cells. The focus of the present work is the robotic automated layup of dry fibrous preforms to be employed in liquid composite molding (LCM) processes. In particular, the article describes a software tool developed to simulate the automated placement and layup of fiber fabrics and tissues on complex shape molds by means of a robotic system. The tool has been coded in Matlab language. An end-effector has been appositely designed for the fiber layup and it has been included in the model. The simulation provides as output the path generation and the configuration of the robotic arm and of end effector along the entire layup process. The implemented code has been compared with the commercial software RoboDK.

Simulation of Reactive Liquid Composite Molding

1998 ◽  
Vol 13 (4) ◽  
pp. 389-397 ◽  
Author(s):  
C.-H. Wu ◽  
H.-T. Chiu ◽  
L. J. Lee ◽  
S. Nakamura
Keyword(s):  
Liquid Composite Molding ◽  
Composite Molding ◽  
Reactive Liquid

Modélisation viscoélastique des renforts fibreux dans les procédés de type Liquid Composite Molding (LCM)

2014 ◽  
Vol 24 (3) ◽  
pp. 367-381
Author(s):  
Mack Boris Nziengui ◽  
Hind Abdellaoui ◽  
Jamal Echaabi ◽  
Mohamed Hattabi
Keyword(s):  
Liquid Composite Molding ◽  
Composite Molding

scholarly journals A Conceptional Approach of Resin-Transfer-Molding to Rosin-Sourced Epoxy Matrix Green Composites

Aerospace ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 5
Author(s):  
Sicong Yu ◽  
Xufeng Zhang ◽  
Xiaoling Liu ◽  
Chris Rudd ◽  
Xiaosu Yi
Keyword(s):  
Composite Laminates ◽  
Resin Transfer Molding ◽  
High Viscosity ◽  
Ramie Fiber ◽  
Liquid Composite Molding ◽  
Curing Agent ◽  
Molding Process ◽  
Transfer Molding ◽  
Low Viscosity ◽  
Composite Molding

In this concept-proof study, a preform-based RTM (Resin Transfer Molding) process is presented that is characterized by first pre-loading the solid curing agent onto the preform, and then injecting the liquid nonreactive resin with an intrinsically low viscosity into the mold to infiltrate and wet the pre-loaded preform. The separation of resin and hardener helped to process inherently high viscosity resins in a convenient way. Rosin-sourced, anhydrite-cured epoxies that would normally be regarded as unsuited to liquid composite molding, were thus processed. Rheological tests revealed that by separating the anhydrite curing agent from a formulated RTM resin system, the remaining epoxy liquid had its flowtime extended. C-scan and glass transition temperature tests showed that the preform pre-loaded with anhydrite was fully infiltrated and wetted by the liquid epoxy, and the two components were diffused and dissolved with each other, and finally, well reacted and cured. Composite laminates made via this approach exhibited roughly comparable quality and mechanical properties with prepreg controls via autoclave or compression molding, respectively. These findings were verified for both carbon and ramie fiber composites.

scholarly journals Solution of Bottlenecks in the Logistics Flow by Applying the Kanban Module in the Tecnomatix Plant Simulation Software

2021 ◽  
Vol 13 (14) ◽  
pp. 7989
Author(s):  
Miriam Pekarcikova ◽  
Peter Trebuna ◽  
Marek Kliment ◽  
Michal Dic
Keyword(s):  
Lean Manufacturing ◽  
Business Processes ◽  
Software Tool ◽  
Transportation Systems ◽  
Simulation Software ◽  
Simulation Methods ◽  
Software Environment ◽  
Production Logistics ◽  
Pull System ◽  
Plant Simulation

The presented article deals with the issue of solving bottlenecks in the logistics flow of a manufacturing company. The Tx Plant Simulation software tool is used to detect bottlenecks and deficiencies in the company’s production, logistics and transportation systems. Together with the use of simulation methods and lean manufacturing tools, losses in business processes are eliminated and consequently flow throughput is improved. In the TX Plant Simulation software environment, using Bottleneck analyzer, bottlenecks were defined on the created simulation model and a method of optimizing logistics flows was designed and tested by introducing the Kanban pull system. This resulted in an improvement and throughput of the entire logistics flow, a reduction in inter-operational stocks and an increase in the efficiency of the production system as a whole.

Fiber optic flow and cure sensing for liquid composite molding

2001 ◽  
Vol 35 (2) ◽  
pp. 91-104 ◽  
Author(s):  
Joy P. Dunkers ◽  
Joseph L. Lenhart ◽  
Sylvia R. Kueh ◽  
John H. van Zanten ◽  
Suresh G. Advani ◽  
...  
Keyword(s):  
Optic Flow ◽  
Fiber Optic ◽  
Liquid Composite Molding ◽  
Composite Molding

Experimental Validation of Dependence Map based Control in Liquid Composite Molding

2005 ◽  
Vol 40 (13) ◽  
pp. 1137-1162 ◽  
Author(s):  
Jeffrey M. Lawrence ◽  
Patrice Hughes ◽  
Suresh G. Advani
Keyword(s):  
Experimental Validation ◽  
Liquid Composite Molding ◽  
Composite Molding
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