Die cut foam gaskets conform to irregular surfaces to form a seal. They can also provide shock absorption, cushioning and insulation, and noise and vibration damping. In mechanical assemblies, die cut foam gaskets fill the small spaces between mating surfaces such as flanges. To prevent leakage, these die cut seals flow into the gaps and support compression, such as when the flanges are bolted together.
Die cut gaskets are used to seal out air, liquid, dust, light, and sound. They’re made of foams, solid rubbers, or compressible materials such as cork rubber. In mechanical assemblies, gaskets provide sealing between mated flanges. To create the seal, the gasket is compressed so that it flows into imperfections on the seating surfaces. Small imperfections in the flange face are typical, and can be caused by manufacturing, assembly, or corrosion.
To prevent leakage, a gasket must withstand the amount of pressure that’s applied. If over-compression occurs, the gasket won’t maintain continuous contact with both flange surfaces. Gaskets must also resist environmental conditions such as service temperatures and exposure to chemicals. Die cutting is a great choice for gasket fabrication, but choosing the right material is also important. Sourcing managers need a die cutter with a strong supplier network for foam, solid rubber, and cork rubber.
AHR Expo 2017 last three days, hosts 2000 exhibitors, and attracts crowds of 60,000 attendees. Even if the International Air Conditioning, Heating, Refrigerating Exposition (AHR Expo) wasn’t in Las Vegas, competition for your attention would be fierce. There’s plenty to see and do both at the tradeshow and in the Entertainment Capital of the World, so why visit a die cutter from Ohio when you’re in Nevada?
Die cut products such as rubber gaskets need to meet multiple requirements. They must provide reliable performance over the life of the application, and at various temperatures and pressures. Depending on the application, die cut parts may come into contact with different types of media, too. For design engineers then, material selection starts with TAMP. That’s true not just for die cut seals and gaskets, but also for die cut adhesive materials.
Kiss cutting is a precision die cutting technique that allows for the conversion of a die cut part without cutting through the release liner or backing, like stickers but with flexible materials for gasket applications. Suitable materials for this technology include foams, felts, rubber, Manniglas®, tapes, graphite, thermal management materials, and plastics – just to name a few. Often, kiss cutting is used to produce peel-and-stick parts that have a pressure-sensitive adhesive (PSA). These die cut products can be applied by hand on an assembly line, or with automated equipment such as industrial robots.