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 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 valve (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 retainer screw thread length and re-chamfer the end to form the desired part at a lower cost and shorter lead time than machining from scratch. The valve most important factor in creating a quality product retainer is the selection of raw material (cold forming wire). As an example you might need a product valve cold retainer 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 valve form the raw material. In retainer critical applications, this can be a very real problem because valve there is a wide range of quality with raw materials. The goal in drawing wire is retainer 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. During forward extrusion, while contained in a die, the work-piece valve is forced through an orifice under high pressure to form retainer a smaller cross-sectional area work-piece, valve it is possible to produce work-pieces with a variety of cross-sectional configurations including rectangular, hexagonal, etc. The amount of reduction in cross-sectional area which can be achieved is dependent on a number of variables including the following, Material Condition, surface finish of work-piece and tooling, lubrication, heading force and tool design . In normal cases a reduction in excess of 70% are achievable.Trimming and Piercing are essentially shearing operations which result in the cutting of metal without the production of chips. Cold forming, retainer or cold valve heading, uses forces greater than a metal''s elastic limit to form shapes without causing scrap material. Since raw material can be the most expensive aspect of a part, cold forming is often a retainer lower cost alternative to screw machining and other manufacturing methods. Benefits of Cold Forming Quality Improved strength and reliability valve through work hardening and an uninterrupted grain flow Improved surface finish over screw machined components Design Flexibility Unique and diverse shapes, including parts with multiple diameters, extrusions, blind holes and through holes Large retainer head to shank ratios without secondary machining valve Eccentric or asymmetrical bodies possible Reduced Costs Reduced scrap rates High production rates Ability to form parts to a net or near-net shape, retainer which requires fewer secondary operations to achieve finished form Allows multi-piece assemblies to be manufactured as a single component Cold forming often uses significantly less raw material for the same component. 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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