Advantages of Drape Forming Acrylic Sheet. ABS Acrylic Fire Retardant (ABS, PVC, Polycarbonate) Kydex Nylon PETG Phenolic Polycarbonate Polypropylene Polystyrene Polyurethane PVC Drape Forming at Formco Plastics Drape Forming is a process by which a plastic sheet is heated to a desired temperature and "draped" over a mold or into a fixture. Drape Forming. Acrylic drape forming involves heating the sheet so that it moulds around the cast. It works well on both large and small parts. This process is for producing large curves in flat panels of plastic in thicknesses up to 25mm, particularly acrylic. The difficulty with small projects, having tight bends close together, is control of the heat source so the adjoining curve isn't affected. DRAPE FORMING - BOTTOM (Figure 1.) Drape Forming. This is because it is a thermoplastic and therefore easy to form into various shapes using specialist heating techniques. 1. Create curves and bends in flat acrylic or plexiglass sheets for your models or miniatures with a simple jig and common heat sources. Workable Materials. Essentially DRAPE FORMING - BOTTOM is clamping a piece of sheet plastic in some type of clamping mechanism, putting this material into a heating oven, heating the plastic sheet up to a desired temperature, … This helps in approximating the depth of the mold more closely. 23 Drape Forming 23 Three-Dimensional Forming 24 Free Forming 26 Estimating Pressure Required for Free Blowing or Vacuum Forming ... Generally, the whole piece of Plexiglas® acrylic sheet is heated before forming in a hot air oven with forced circulation (Figure 1).The Further, the drape forming process also lends itself well to high quality transparancies. Oven heated material is draped over a male mould and left to cool in order to achieve the desired shape. Tooling cost is relatively low as compared to other methods of forming the acrylic sheet. The beauty of acrylic is that it is the perfect material for many applications. It also reduces the pressure on the mold surface of the sheet resulting in fewer mark-offs being apparent in clear parts. . This article uses a sheet about 1/4" thick, so all times are about 10 to 15 minutes per step. Most scale models won't need bends in acrylic more than 1/16 inch thick. This part is used as the display shield for open topped grocery story refrigerators. For a variety of products that require a gradual curve or bend, Aubright offers almost three decades of quality, accuracy and consistency in drape forming (or oven forming) for exacting needs – including large parts at high throughput. Pictured left is a green acrylic formed via the drape forming process. Modify the timing as necessary. Akra uses drape forming (also called oven forming) when a plastic part requires a more general, or gradual, bend than heat bending processes can provide. A slightly more sophisticated technique uses a male-female mould, sandwiching the plastic sheet. We usually produce a mold or form with the desired shape or curve for the part. Widely used for products that require a gradual curve or bend, drape forming is the ideal process for products like windshields, guards for machines, and POP displays. Drape forming acrylic sheet. For thicker sheets, it will take longer, and for thinner sheets, it will take less time. The only major variable that can affect the forming process is the thickness of the plastic sheet. Oven heated material is draped over a male mould and left to in. Cost is relatively low as compared to other methods of forming the acrylic sheet more... N'T need bends in acrylic more than 1/16 inch thick bends in acrylic more than 1/16 thick. Left is a thermoplastic and therefore easy to form into various shapes specialist. 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