Two new ultrasonic welding machines have been added to the equipment list in the GMN Plastics facility. Ultrasonic welding is a process in which sound vibration is used to adhere an insert to plastic or plastic to plastic. This technology has many advantages over other processes and is typically chosen because it is more precise, has faster cycle times, is easier to set-up for production, the tooling involved is less expensive, the machines are smaller, and it can be done either as a standalone operation or at the molding machine during the molding process.
Because ultrasonic welding is used for a wide variety of applications, there are many variables to consider when determining whether this technology should be chosen. To decide whether ultrasonic welding is the right option for a project, the team at GMN Plastics looks at factors of the part design including part function, material, cosmetic requirements, and part size.
A good example of the advanced capabilities of ultrasonic welding can be seen through a plastic bezel that GMN Plastics manufactured for a large medical technology corporation. This complex piece used four different inserting operations, each with different heights and locations. Ultrasonic welding was able to meet the customer’s project requirements with reduced set-up times, reduced handling and movement, one piece flow operation (also known as lean manufacturing), and better quality.