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 Two primary questions must be considered: ''The application in which the fastener is being used?'' and ''Who would be effected if the said product were to fail?'' It may be that the legal exposure vs. product failure ratio is acceptable to your company given the nature of your application. However, if you are unsure of the product application, or you know metalextrusions it is a critical application, you should choose a higher quality product. At we assure the quality of our fasteners starting with the raw material. We select and use only the highest quality raw materials. This is proven in the manufacturing metalextrusions of our fasteners, since cold forming self inspects the quality of the material used. The absence of surface defects on the cold formed product is strong evidence that the material used was a highly pure/high quality wire. Take any competitive product and hold it next to a Look at the side of the fastener head and the undersurface groove area, you will visibly see the difference. The closer the manufacturer gets to a 100% pure wire product the more it costs in time and money to produce that wire. Therefore, the cost of the wire depends on the purity of the wire drawn, and the purity of the metalextrusions wire depends on the process used to draw or create that wire. The most common problem caused by impurities is in the form of bubbles in the wire when it is drawn. metalextrusions These bubbles or impurities many times remain undetected in the cold drawn wire. When the material is upset in the cold forming process metalextrusions most of the bubbles or impurities are brought to the wire surface and are visible in the cold metalextrusions formed product as voids, pits, or porosity. Wire impurities are also seen in the form of nicks, gouges or seams in the finished product. These defects are particularly important when dealing with self-sealing fasteners, since a difference of .003 in the depth of the groove (about the thickness of one sheet of paper) is enough to cause o''ring failure. If defects are metalextrusions visible in cold formed fasteners, then the strength, reliability, and overall quality of the fastener is in question. A consequence of this is that it is essential that the cold forming load must be below the tensile strength of the material but above the yield strength of the material. These mechanical properties of the work-piece are directly influenced by its metallurgical structure of the wire and thus any pre-treatment it metalextrusions has undergone. Cold Forming Techniques Cold forming can be undertaken by a number of different techniques or any combination of them. Upsetting, Reverse Extrusion, Forward Extrusion, Piercing and Trimming. Upsetting In upsetting metalextrusions the billet is sheared then placed between a punch and a die and a vertical load applied. During this stage the material flow is generally at 90degrees to the direction in which the load is applied. Reverse or Backward Extrusion is the most common method of producing tubular / hollow components. During reverse extrusion the work-piece is contained within a die while an extrusion punch/pin is forced into it in a vertical direction. This causes the material to flow parallel to the pin but in the opposite direction to the direction of travel of the pin. We are the ultimate online resource for many different metal working jobs. We have the most knowledgeable employees and the best equipment available so we can get the job done right.
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