Our team of certified engineers, & trades qualified technicians have the knowledge, experience, programs & machines available to consult, design & manufacture your composite requirements. The ability to conduct (FEA) Finite Element Analysis and CAD Wind modelling enables the team to provides a low cost design bass for all Filament wound composite products. The team also run an extensive R&D programme investigating further improvements with existing & other potential products. If you have a product in mind why not contact one of our design team today, with composite materials the sky is the limit, as we say at A C Whalan Composites we are “Building the future today”.
Vacuum bag moulding uses a flexible film to enclose the part and seal it from outside air. A vacuum is then drawn on the vacuum bag and atmospheric pressure compresses the part during the cure process. Vacuum bag material is available in a tube shape or a sheet of material. When a tube shaped bag is used, the entire part can be enclosed within the bag. When using sheet bagging materials, the edges of the vacuum bag are sealed against the edges of the mould surface to enclose the part against an air-tight mould. When bagged in this way, the lower mold is a rigid structure and the upper surface of the part is formed by the flexible membrane vacuum bag. The flexible membrane can be a reusable silicone material or an extruded polymer film. After sealing the part inside the vacuum bag, a vacuum is drawn on the part (and held) during cure. This process can be performed at either ambient or elevated temperature with ambient atmospheric pressure acting upon the vacuum bag.
Our highly skilled team of fibre glass laminators have experience with a multitude of Composite materials and are amongst the highest qualified, skilled & experienced in the industry. As a result we have delivered technical & specialty products to meet or exceed our customers particular requirements on a regular basis. The ability to complete FEA modelling of a concept during the design phase enables the team to get it right the first time, saving time, waste & ultimately money.
RTM & Infusion
Resin Transfer Moulding is a process using a rigid two-sided mould set that forms both surfaces of the panel. The mould is typically constructed from aluminum or steel, but composite molds are sometimes used. The two sides fit together to produce a mould cavity. The distinguishing feature of resin transfer moulding is that the reinforcement materials are placed into this cavity and the mould set is closed prior to the introduction of matrix material. Resin transfer moulding includes numerous varieties which differ in the mechanics of how the resin is introduced to the reinforcement in the mould cavity. These variations include everything from the RTM methods used in out of autoclave composite manufacturing for high-tech aerospace components to vacuum infusion to vacuum assisted resin transfer moulding (VARTM). This process can be performed at either ambient or elevated temperature.