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 Orbitforming is also sometimes called spinning, radial riveting, brackering, spin riveting, peening or noiseless riveting. Orbitforming is used to head, swage, crown, flare or draw a column or projection of malleable material and is used most often in fastening and assembly to produce a high quality head form extruding - to rivet without disruption of component material grain structure. While extruding similar in nature to impact or compression forming and riveting in that a compressive axial load is applied to the part being formed, the axial load is greatly reduced due to the mechanical extruding and extruding advantage of the angular orbiting tool and progressive forming action. The axial load required for forming is reduced up to 80% with orbital due to this mechanical advantage. However, cold forming machine setup costs vary depending on the complexity of the product to be produced and can be exorbitant. With higher volumes (5,000 pieces or more), it is easier to absorb these set up costs, but with lower volumes (1,000 pieces or less), machining may be a more cost effective method. However, if stock is available in a part previously manufactured at a longer length, we can often cut-off a portion of the screw thread length and re-chamfer the end to form the desired extruding part at a lower cost and shorter lead time than machining from scratch. The most important factor extruding in creating a quality product extruding is the selection of raw material (cold forming wire). As an example you might need a product cold formed in 302HQ (18-8) stainless wire to the federal specification QQ-S-763. Although this is a very extensive specification, there are still min./max. tolerances and no preference as to how wire must be drawn to form the raw material. In critical applications, this can be a very real problem because there is a wide range of quality with raw materials. The goal in drawing wire is to create a wire with as little impurities/imperfections as possible. The lower the impurities the higher the tensile strength. The old adage "you get what you pay for" applies here. 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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