What are the Points to be Considered before Purchasing Ring Rolled Forgings?
Close cooperation between the producers and buyers of ring rolled forgings has been an imperative part of attaining the best possible products at the best cost possible. With recent advances in forging techniques and materials, this collaboration has become more vital than ever before. So, by keeping updated about these advances, and working with the forger closely, the buyer or engineer can guarantee delivery of high-class products with noteworthy cost savings. Here are the important points to be considered before buying ring rolled forging:
A capable and experienced forging company should be competent to make designing suggestions to consolidate the components, simplify processing, decrease required machining, speedy delivery, etc. It should be possible to attain forging’s highest level performance advantages without considerably increasing production or material costs over those linked with other procedures. The key here is to get forger involved in early stage. The advantage derived from consultation varies with the intricacy of the parts and the forging procedure involved.
A vital part of these design meetings must be the service requirement of the applications. The forger requires complete information about how the rolled rings will be used, operating environment, and mechanical properties. A detailed understanding of service stress – load-bearing, impact, hydraulic pressure, power transmitting, low or high temperatures, corrosive condition – and the stress locations can allow the forgings engineer to make designs and process suggestion that can lead to a better product and reduce manufacturing costs.
Often, the alternative alloy- and carbon-steel grades can generate similar mechanical properties, based on forging designs, heat treatments, and so on. Specifying property level beyond those required actually by the application significantly can increase costs. The most excellent economy is attained when hardness, tensile, impact and all other mechanical properties realistically are based on the services requirements of the components being designed. Once the realistic property level is established, forger can help choose one material from the alternatives to attain the optimal combination of performance, heat treatability, forgeability, economy and machinability.
The special performing operation, reheat or added dies and equipments might or might not be needed to achieve the individual part configuration and desired grain flow patterns. Almost always, a well-informed forger can work easily with a product designing and achieve production and material economies with no losses of part performance. At times, slight changes in the part shapes can make forging requirements simpler, reduce die cost, and speed production.
The capability of forgers at present to create as-forged shapes to the tight tolerance is improving, and maximum companies are striving hard to develop their near-net and net-shaped forging capabilities. Presently, there is some significant cost involved in having tight as-forged tolerance. The wise buyers will ask the forgers to help evaluate trade-offs between increased processing and die costs and reduced machining.
Most of the forging companies have machine capabilities and some provide wide finishing services. Lots of buyers specify that coarse machining is done by the forgers so that surface imperfection will be discovered prior to the parts get shipped. And there’s a rising trend towards specifying that the forgers do finish machining as well, for reasons of the economy and for isolating responsibilities. The buyer thus gets a ready-to-install, finished component.