By Tom Kirkland, tributek.biz . A recent SPE TECH CHAIN post mentioned a molding problem that began with a resin dryer which was not functioning properly. This resulted in charring of the material in a corner of the mold because of outgassing. The molding technician then turned down the barrel heat, which resulted in both excessive shear damage (not noticed) and short … [Read more...] about Ultrasonic Welding: Your Canary?
Assembly
When Vibration Welding is the Best Choice
by Jeffrey Frantz, Branson Vibration welding has been a process of choice for quite some time in applications that have complex geometries, especially for materials that are difficult to weld, such as glass-filled nylon, polypropylene and polyethylene. Typical applications include, but are not limited to, automotive air conditioning ducts, power steering and brake … [Read more...] about When Vibration Welding is the Best Choice
Use a Process-Neutral Approach when Selecting an Assembly Method
by Jeffrey Frantz, Branson When it comes to deciding the best assembly process for an application, the options can be confusing. From mechanical fasteners and adhesives to heat and friction methods, each comes with distinct advantages. To ultimately make the proper choice, every application must stand on its own. Using a process-neutral approach to determine joining … [Read more...] about Use a Process-Neutral Approach when Selecting an Assembly Method
Discussion: Performance of Pressure-Sensitive Adhesive Tapes Under Different Strain Rates
by N. Pemberton-Pigott, G. Burger and D.A. Wasylyshyn, BlackBerry Ltd. EDITOR'S NOTE The following discussion refers to the Performance of Pressure-Sensitive Adhesive Tapes Under Different Strain Rates article found on page 20 of the October/November 2015 issue of Plastics Decorating. . Related Story Performance of Pressure-Sensitive Adhesive Tapes Under … [Read more...] about Discussion: Performance of Pressure-Sensitive Adhesive Tapes Under Different Strain Rates
Performance of Pressure-Sensitive Adhesive Tapes Under Different Strain Rates
by N. Pemberton-Pigott, G. Burger and D.A. Wasylyshyn, BlackBerry Ltd. The adhesion properties of several pressure-sensitive adhesive (PSA) tapes under different stress levels and associated deformation rates were compared to examine the correlation of standard peel performance to creep and impact performance. Results show that the typical peel strength testing done at … [Read more...] about Performance of Pressure-Sensitive Adhesive Tapes Under Different Strain Rates