Presrite Corporation management was kind enough to have us interview employee Ms. Shabrea Davis a few days after she completed six standard THORS courses. The following are excerpts from this successful learner’s review of our courses. Presrite Corporation Presrite is one of the largest forging companies in the USA based
Workplace accidents, fatal and tragic, make headlines and fade away from our collective consciousness after their shelf-life in the news cycle; the less-grievous ones rarely gain media attention, nevertheless, they are commonplace. The Occupational Safety and Health Administration (OSHA) defines workplace accidents as, “an unplanned event that results in personal
Casting Chronicles The history of humanity is defined by man’s relationship with the material world. Man’s ability to make tools from metals has changed our historical trajectory. A copper frog from Mesopotamia (modern-day Iraq) dating back to 3200 BCE is the oldest known casting. Farm tools made of cast iron
You’ve probably used a ballpoint pen to write, a hard drive to store data, a skateboard to zoom around, and, of course, an electric motor to power a household machine or two. But do you wonder what makes them run so smoothly and quietly? Bearings make machines like these run. Without
Thousands of years ago duplicate metal structures were cast from an original sculpture by the lost-wax casting process. Investment casting is one of the oldest metal-forming techniques based on this lost-wax casting process. A beeswax pattern is coated with refractory ceramic material, which then hardens and takes the shape of the casting.
Whether it’s a whole machine, a simple component, or a complete vehicle, fasteners are essential to the construction of these objects. The absence of fasteners in design and construction may lead to adverse consequences. Besides possible safety implications, fastener failure can represent a significant proportion of a product’s warranty costs. Understanding
Gears are thought to be one of the oldest components known to humankind. Early examples of gears trace back to the fourth century BC in China. Since then, gears have been used extensively for the transmission of power. They find application in almost all modern machinery. To meet the strenuous service conditions, gears should have
You will be surprised to know how much of our daily safety depends on non-destructive testing (NDT). In 2014, at least 126,698,000 lug nuts were NDT tested on 7,918,601 new cars sold in the US. There were 295 derailments in 2014 due to structural failure which could have been detected
