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Rapid Tooling and the LOMOLD process
Published in Paulo Jorge Bártolo, Artur Jorge Mateus, Fernando da Conceição Batista, Henrique Amorim Almeida, João Manuel Matias, Joel Correia Vasco, Jorge Brites Gaspar, Mário António Correia, Nuno Carpinteiro André, Nuno Fernandes Alves, Paulo Parente Novo, Pedro Gonçalves Martinho, Rui Adriano Carvalho, Virtual and Rapid Manufacturing, 2007
D. Dimitrov, E.F. Joubert, N. de Beer
Rapid Tooling is a group of technologies that emerged from, and continues to be influenced by the growth of Rapid Prototyping (RP) (Wohlers 2005). As with the inception of many new technologies, as the industry begins to employ Rapid Tooling, its definition has evolved over time. Some would simply classify it as any technology or method that produces tooling quickly. Other would see the RT as “RP-driven” tooling. Today however, the definition for RT follows in the wake of concepts like Rapid Manufacturing (RM), where the focus is on producing end use components directly. Therefore Rapid Tooling encompasses any additive or subtractive approach for manufacturing of long-term consistent tools capable of producing several thousands or even millions of parts (Levy et al. 2003). This definition focuses on delivering tools in a shorter time period with a long tool life.
Fused Deposition Modelling
Published in Rupinder Singh, J. Paulo Davim, Additive Manufacturing, 2018
Kamaljit Singh Boparai, Rupinder Singh, Jasgurpreet Singh Chohan
The emergence of rapid prototyping techniques revolutionized the modern industry by producing parts having complex shapes and meeting fast-changing customers’ requirements within a stipulated time period. The current rapid prototyping technologies are limited to fabricated prototypes with a small range of materials. The production rate of these prototypes is also less. In order to reduce the production time and cost, a multistep procedure has to be adopted. This multistep procedure is termed as rapid tooling. The rapid tooling offers to produce parts with a wider variety of material and in large quantities.
Futurity
Published in Thomas Birtchnell, John Urry, A New Industrial Future?, 2016
What people and organizations do with a given innovation is decisive in its ubiquity and mass adoption. A number of engagements are happening now. First, rapid tooling involves the production of limited numbers of moulds for the traditional process of factory injection moulding, shortening the production time for small numbers of high value parts, such as for nuclear submarines. Similar to rapid prototyping, rapid tooling is invisible to the consumer beyond providing them with more options for custom products.
Evaluating interlayer gaps in friction stir spot welds for rapid tooling applications
Published in IISE Transactions, 2023
Eric Weflen, Jakob D. Hamilton, Samantha Sorondo, Ola L. A. Harrysson, Matthew C. Frank, Iris V. Rivero
Injection molding is a well-established polymer processing technique, which when paired with high production volumes can result in low-cost part production. However, this manufacturing technique is burdened with the slow and expensive process of manufacturing tooling fabrication. Meanwhile, a variety of additive manufacturing, or rapid prototyping technologies, such as Fused Filament Fabrication and Stereolithography, have allowed for the direct fabrication of components from a digital file, circumventing this need for production tools and dies (Huang et al., 2013). Despite the additional flexibility of rapid prototyping processes, it is still often more economic to utilize traditional injection molding as production quantities increase or if specialty materials are required (Gibson et al., 2015). Rapid tooling expands the concept of rapid prototyping technologies into the production of tooling, instead of the final part. The use of rapid tooling for injection molding can help bridge the financial and lead-time gap between rapid prototyping and traditional tooling (Campbell et al., 2012; Gibson et al., 2021). It accomplishes this by enabling medium volume production at a shorter lead time and with a lower initial investment than traditional injection mold tooling. In addition, this rapid tooling has the potential to be used in new applications such as the production of products that could benefit from mass customization, or to improve the performance of tooling through the optimal layout of cooling channels in injection mold tools (Sachs et al., 2000; Shayfull et al., 2014).
Design and fabrication of gypsum mold for injection molding
Published in Journal of the Chinese Institute of Engineers, 2018
C. C. Lin, G. H. Lee, Y. J. Wang
Typically, product development includes several stages, such as concept design or assembly test in which must satisfy customization, functional purpose design, and demands for cost saving. A new product needs to pass through a series of verification stages from ideation through design, and manufacturing to marketing. In order to reduce the risk and cost associated with traditional manufacturing, a small quantity of prototypes is produced to allow a designer to validate design concepts in the early stages of product development. Conventional molds used in injection molding are made of hardened steel to resist high injection pressure and to achieve a longer tool lifetime. However, in the case of a low quantity production like prototypes, it is hard to justify the cost of steel molds. Rapid prototyping (RP) technology provides a faster and more efficient approach to producing prototypes for validating the design concepts in the initial stages of product development (Dunne et al. 2007; Noble, Walczak, and Dornfeld 2014). Rapid tooling (RT) describes a process which either uses an RP model as a master pattern to cast a mold (Indirect tooling method) quickly or uses an RP process directly to fabricate a tool (Direct tooling method) for a limited quantity of prototype examples. As the required quantity of prototypes increases, the advantage of RP technology vanishes gradually.