... moulding ovens prototypes research and development resins space vehicles strain measurement 29 11 2010 12 05 2011 01 07 2011 01 07 2011 Table 9 Maximum face-sheet stress and margin of safety Maximum face-sheet stress (MPa) Allowable stress (MPa) Knock-down...

...Daniel Walczyk; Jaron Kuppers; Casey Hoffman Curing and consolidating thermoset composite laminates and sandwich structures typically involves vacuum bagging an uncured and formed layup over a thin-walled mold, placing it in an autoclave, and subjecting the entire unit to temperature, vacuum...

...A. Ananthanarayanan; S. K. Gupta; H. A. Bruck In-mold assembly can be used to create mesoscale articulating polymeric joints that enable the miniaturization of devices, reduction in production costs, and increase in throughput. One of the major challenges in miniaturizing devices using the in-mold...

... (e.g., F-35 Joint Strike Fighter) require dedicated fixed tools for manufacturing only a few parts. Automotive —Formed steel and aluminum parts, thermoformed plastic parts, and mold-formed composite parts are used extensively in passenger cars, trucks, and military vehicles. Although...

.... 02 03 2006 26 06 2006 microlenses excimer lasers LIGA laser beam machining micromachining probability polymers moulding hot working embossing surface roughness optoelectronic devices microlens excimer laser microfabrication LIGA-like process In this paper, we...

... in the simulation model for reliable predictions. The results also show that the FEM can be used to predict the process, improve performance, and also provide a deeper process understanding. 22 06 2005 17 11 2005 finite element analysis precision engineering moulding annealing stress...

... significance for the integrated composite product and process development. 28 10 2003 05 08 2004 permeability mechanical variables measurement porosity product development process design preforms moulding Liquid composite molding (LCM), which includes the resin transfer molding...

... In general, a PEL-type construction is ideally suited for large tools (e.g., steel stretch forming die for forming aluminum aircraft body panels, aluminum thermoforming mold for outside enclosures) that require reconfigurability (i.e., ability to change the tool’s geometry), conformal heating/cooling...

..., this practice is becoming increasingly inefficient and impractical for the molding of larger, more complicated and more costly parts. In this investigation, a numerical method for simulating the mold-filling phase of powder injection molding was developed. The flow was modelled using the Hele-Shaw approach...

...Ali Gokce, Graduate Student; Suresh G. Advani, Professor In Liquid Composite Molding (LCM) processes, the flow pattern of the resin in the mold cavity during mold filling dictates the quality of the composite part. Disturbances such as uncertainty in the fiber preform permeability, variations...