A medical fastener used in a surgical process achieves a tolerance of ±0.0005 in. using the Micro Molding process. “With conventional molding and multiple cavity tooling, cavity-to-cavity and process variability would already push us out of part tolerance,” comments a mold maker at Phillips Plastics, Hudson, WI. “With our Micro Molding technology, we felt comfortable we could hit the tolerances that were required for this part.”
Given the low volumes required for the part and the high cost of materials, Micro Molding offered a low-cost solution. Phillips Plastics’ proprietary process yields a higher percentage of useable parts versus runner compared to conventional molding, tilting economics toward Micro Molding when materials’ prices are high.For that reason, it’s often an ideal candidate for highly demanding medical molding. Another advantage of Micro Molding is that investment in tooling can be substantially less than conventional tooling. In most cases, prototype tooling can also be used for production tooling, assuming there are no design changes. Typical lead-time to sample parts is three to five weeks, depending on part geometry, tolerances and other specials requirements. Minimum sizes for Micro Molding in plastic are 0.002 gram to 0.06 grams and 0.0001 cubic inches to 0.003 cubic inches. In metal, minimum sizes are 0.013 grams to 0.375 grams and 0.0001 cubic inches to 0.003 cubic inches.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
The age of touch could soon come to an end. From smartphones and smartwatches, to home devices, to in-car infotainment systems, touch is no longer the primary user interface. Technology market leaders are driving a migration from touch to voice as a user interface.
Soft starter technology has become a way to mitigate startup stressors by moderating a motor’s voltage supply during the machine start-up phase, slowly ramping it up and effectively adjusting the machine’s load behavior to protect mechanical components.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
If you’re developing a product with lots of sensors and no access to the power grid, then you’ll want to take note of a Design News Continuing Education Center class, “Designing Low Power Systems Using Battery and Energy Harvesting Energy Sources."
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.