New plastics/metal hybrids introduced at K 2007 by A. Schulman eliminate soldering for electronic parts and also create shielded housings. “Conductor paths and contact points for connectors and cables can be injection molded simultaneously,” says Thilo Stier, innovation manager, told me at the packed Schulman stand this morning. Traditional lead frame techniques are replaced by the hybrids, called TinCo. They consist of 15 percent thermoplastics, such as nylon; 30 percent of a low-melting alloy such as tin; and 55 percent copper fiber. Nylon is overmolded with the low melting metal in a two-barrel injection molding machine using conventional tooling. Siemens is a development partner. Five other OEMs are also beta testing the technology under secrecy agreements. The process was demonstrated at the K Fair on an Arburg press. Due to the high loading of copper, the hybrid has excellent specific electrical conductivity—greater than 106 S/m. Most plastic and elastomers can be used as the matrix in the compound. Cycle times are short due to the material’s high thermal conductivity.
Two new technologies from Stratasys, created in partnership with Boeing, Ford, and Siemens, will bring accurate, repeatable manufacturing of very large thermoplastic end products, and much bigger composite parts, onto the factory floor for industries including automotive and aerospace.
These new 3D-printing technologies and printers include some that are truly boundary-breaking: a sophisticated new sub-$10,000, 10-plus materials bioprinter, the first industrial-strength silicone 3D-printing service, and a clever twist on 3D printing and thermoforming for making high-quality realistic models.
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.
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