![]() ![]() Many a golf pro has solved a problem by adjusting their student’s grip. ![]() In sports, the grip is the point where the athlete and the sport interface. Then, decide on an acceptable tolerance range, and determine whether it will be possible to measure forces within the defined criteria. However, before attempting to use a load cell it would be wise to determine the tolerance specification and compare that to the expected forces. Manufacturers want to get the most utility out of a piece of equipment, thereby minimizing capital expenditures. But, as with any testing, the data is only as good as the test methodology allows. Test results can inform the designer or quality control engineer whether the material or sample has been designed and manufactured appropriately. The test objectives vary from application to application, and can include measuring the breaking force, the force at a pre-defined elongation, elongation at break, as well as some scientific calculations, such as Young’s modulus. In tensile testing, a sample is subjected to a pull force. One of the main tools in the quality toolbox is tensile testing. At the same time, customers’ expectations relentlessly increase. ![]() Manufacturers have many reasons to pursue designs which are smaller, lighter, less expensive, and with less environmental impact. As materials and manufacturing methods advance, characterization and quality are as important as ever. The cost of 3D printing of metals, while still prohibitive in many cases, has been falling steadily. Three-dimensional (3D) printing has become a viable option in many applications, and not just for plastics. The method of manufacture is also rapidly changing. Materials are becoming stronger, harder, lighter, and in many cases less expensive. Today, however, the quality of plastics and other materials are advancing at a rapid pace. Maybe that’s why Dustin Hoffman’s character was famously given the career advice to get into plastics in the movie “The Graduate.” It was, as they say in some quality circles, a target rich environment. Younger readers may be surprised to hear that the word plastic was once synonymous with cheap. ![]()
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