Ultrasonic welding is one of the most popular welding techniques used in the welding industry. It is fast, economical, and automated, and well suited for mass production, with production rates up to 60 parts per minute being possible. Ultrasonic welding uses ultrasonic energy at The high frequency (20–40 kHz) to produce low amplitude (1–25 μm) mechanical vibrations. The vibrations generate heat at the joint interface of the parts being welded, resulting in melting of the thermoplastic materials and weld formation after cooling. In addition to welding, ultrasonic energy is commonly used for processes such as inserting metal parts into plastic or reforming thermoplastic parts to mechanically fasten components made from dissimilar materials. Ultrasonic Welding is used in almost all major industries like automotive, electronic and appliances, medical, packaging etc. A lim In the case of ultrasonic welding is that with current technology, large joints cannot be welded in a single operation. In addition, specifically designed joint details are required. Ultrasonic vibrations can also damage electrical components, although the use of higher frequency equipment can reduce this damage. Also, depending on the parts to be welded, tooling costs for fixtures can be high.
Sewn seam is usually the most critical position for the permeability of the material, but not in case of strength, so its use is indispensable where seam tightness is not a requirement. Seam rigidity, especially in folded places, results in weakening the joint and it Is important where possible to avoid it in folds. Special prominence is given to the essential properties of multi-layer fabrics with woven fabric as a basic component for use in tarpaulins, tents, awnings, sailboats, aircraft, materials for protective clothing, etc. Basic properties of materials with limited values ​​are emphasized, and an experimental study of some selected materials is given.
Developments in fabric joining for smart clothing
New technologies and methods being used in the garment manufacturing include bonding and welding. Bonding uses an adhesive and the two types of welding are ultrasonic and laser. The traditional method of sewing is already added too by these new technologies, not supplanted. At these bonding methods and includes information about the components, machinery used, the physical join, the type of applications and the advantages and disadvantages of using each method.For more information click on XingHui Welding Parts Suppliers