For a gear to perform properly, the contact pattern is critical. Typically, the ideal tooth contact pattern under load should encompass the bulk of the tooth surface, but not touch the edge. It isn't easy. The design usually begins with guesswork, and errors are ironed out after physical testing. Arrow Gear Company (www.arrowgear.com) says it has a better idea. Using software and hardware from Gleason Corp. (www.gleason.com), the company now builds virtual models to predict how the gear will perform in actual operation. Computer analysis generates settings for machine tools, saving setup time. Arrow engineers say that the computer modeling yields the ideal tooth pattern on the first or second attempt on the manufacturer's floor.
What makes this movie stand out from the typical high school sports story is that the teenagers are undocumented immigrants, and the big game is a NASA-sponsored marine robotics competition. Like many other Hollywood movies, however, Spare Parts only tells part of the story. What the film shows -- and doesn’t show -- raises important issues affecting STEM education in the US.
Instead of sifting through huge amounts of technical data looking for answers to assembly problems, engineers can now benefit from 3M's new initiative -- 3M Assembly Solutions. The company has organized its wealth of adhesive and tape solutions into six typical application areas, making it easier to find the best products to solve their real-world assembly and bonding problems.
Load dump occurs when a discharged battery is disconnected while the alternator is generating current and other loads remain on the alternator circuit. If left alone, the electrical spikes and transients will be transmitted along the power line, leading to malfunctions in individual electronics/sensors or permanent damage to the vehicle’s electronic system. Bottom line: An uncontrolled load dump threatens the overall safety and reliability of the vehicle.
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.