One of the hot new ideas in material’s joining is use of atmospheric plasma. Plastics, metals, glass or textiles are cleaned, activated or coated with Openair Jet-Technology, replacing adhesives or mechanical approaches. It’s Physics 101: apply energy and the state of matter changes. Solid turns into liquid, and the liquid becomes gas. If more energy is applied to the gas, electrons leave their atomic shells, putting the gas into the plasma state. Plasma is generated by an intense pulsed arc discharge from a jet that can operate as part of an in-line manufacturing system. The working gas typically is dry compressed air. The breakup of atomic bombs allows cleaning and joining of dissimilar materials.
Developed by Plasmatreat, the first breakthough came in 1995 with the pretreatment of headlight housings, and applications now includes windshields, engine control housings, displays or sensors and the bonding of body components.
Look for the process to become more widely used in multicomponent injection molding processes, which previously had to avoid use of low-priced polypropylene. PP doesn’t adhere well to TPU when treated with plasma. As a result, alloys of polycarbonate and ABS are often used, The PP-TPU system is a result of a collaboration between Plasmatreat, Krass-Maffei, the University of Erlangen-Nŭrnberg, and Neue Materialien Fŭrth.
Read a report of a new technology demonstration at the upcoming Fakuma show in Germany.
Many of the new adhesives we're featuring in this slideshow are for use in automotive and other transportation applications. The rest of these new products are for a wide variety of applications including aviation, aerospace, electrical motors, electronics, industrial, and semiconductors.
A Columbia University team working on molecular-scale nano-robots with moving parts has run into wear-and-tear issues. They've become the first team to observe in detail and quantify this process, and are devising coping strategies by observing how living cells prevent aging.
Many of the new materials on display at MD&M West were developed to be strong, tough replacements for metal parts in different kinds of medical equipment: IV poles, connectors for medical devices, medical device trays, and torque-applying instruments for orthopedic surgery. Others are made for close contact with patients.
New sensor technology integrates sensors, traces, and electronics into a smart fabric for wearables that measures more dimensions -- force, location, size, twist, bend, stretch, and motion -- and displays data in 3D maps.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.