Often in the last step of the manufacturing process would be Material Testing. Yet, the result of both the process and the material that important is Quality. The product may be defective if the material that goes into the product is defective. Quality cannot be put in after the fact. Informing materials, to better predict the manufacturing outcome, understanding the material’s properties can be a big help.
For stamping and forming operations and for many products, a profile of the material will help detect variations in materials from suppliers. In fact, many of the most often-used metals and many plastics, polymers, textiles, and composites exhibit Hookean behavior, which means the stress in a material is proportional to the strain that produced it. For manufacturers, it is of the utmost importance to understand the mechanical properties of materials that exhibit some Hookean behavior during loading. It is important because the performance of a structure is frequently determined by the amount of deformation permitted. A deflection of a few thousandths of an inch in an optical grinding machine will produce scrap lenses, whereas a bridge truss or joist might deflect several inches.
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Tensile strength, yield strength and Young’s Modulus of Elasticity are some of the measured properties that must be considered when designing a structure
Ductility is another important property, which is the ability for plastic deformation in tension or shear. Ductility controls the amount a material can be cold-formed, which is the process used when forming automobile bodies or wire products. Two commonly used indices of ductility are total elongation and reduction of area. The mechanical properties are an important measure of product quality for suppliers, and buyers often require certification of the values.
That is why Material Testing should be one of the top priority of the manufacturing process. To meet the quality standard, one must use appropriate material testing equipment. Victor Manufacturing is the total solution provider for Material Testing Equipment. With more than a decade of experience in the industry, we pledge to help others engineer quality to a certainty.
