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Locally made mini risers presented at Ankiros 2016
The universal housing is recommended for both iron and steel casting .
From its recently installed manufacturing site at Gebze , ASK Chemicals is supplying the Turkish market with its innovative mini riser solutions . These products will be promoted at Ankiros 2016 in Istanbul , which opens on 29 September . EXACTCAST OPTIMA risers are fitted with a loose metal part in the bottom section ( nozzle ) and are fixed with a rigid pin designed to achieve a precisely defined breaking point and to reduce fettling costs . Also on show will be UDICELL filter products for steel applications . In particular , the fully sintered UDICELL foam ceramic filters , produced from partially stabilised zirconium oxide ( PSZ ), are the first choice for use in steel and iron foundries . Thanks to their chemical , thermal and mechanical robustness , UDICELL filters have a very high load capacity and enhance efficiency during the production of steel castings and medium to large iron castings as well as in investment casting . In addition , the latest UDICELL tubular filter technology will be
Dynacast acquires Schleiper
Dynacast has completed its acquisition of Schlieper Druckguss in Vösendorf , Austria , enhancing an already strong foothold in zinc diecasting in the region . A supplier of zinc die castings , Schlieper has been in operation since 1995 , primarily producing components for the automotive sector . The merging of Dynacast Austria and Schlieper will expand product and service choices to customers in the region . Those with international operations will also benefit from the support of Dynacast ’ s global network of 23 international showcased in Istanbul . UDICELL tubular foam ceramic filters are perfectly suited to the secure filtering of large quantities of liquid metal and feature a valueadded design . The advantages of this design include more than three times the filter area compared to a conventional plate-shaped filter of the same size , self-supporting geometry , minimised risk of filter breakage , a compact structure and quick and easy installation . The supplier of foundry chemicals and consumables will display its highly engineered inoculants for grey ( GI ), ductile ( DI ) and compacted graphite ( CGI ) iron . GERMALLOY and SMW inserts are solid cast and used for the mould inoculation of ductile iron . They are either placed in the drag portion of the mould or anchored in the pouring basin of very large castings . Finally , design services round off the ASK Chemicals ’ offering in Istanbul . Design services support the entire process from the development of the design concept and validation , right up to the production of the cast part prototype . The simulation of casting processes provides foundries with valuable information that allows for the optimisation of gating and feeding systems , overflows , venting design and risers . Moreover , it provides critical insight to the influences and effects directly related to casting integrity , such as cooling and heating measurements and filling and solidification times . www . ask-chemicals . com
facilities in 16 countries , including facilities in the NAFTA and Asia Pacific regions . The Schlieper facility will continue to operate as an independent and separate business unit until the end of 2016 , under the current name Schlieper Druckguss GesmbH . Both the management team and the current employee base will remain the same to ensure that customers continue to receive the full range of products , as well as uninterrupted levels of service . www . dynacast . com
Castings experts help to keep multi-national company running
3D printed replica pattern of a diffuser component .
Castings Technology International has come to the aid of a multinational company after key component failures impacted production . The company called upon Cti to assess how quickly it might be able to make replacement components after stocks of spares ran out . It took Cti just three weeks to reverse engineer the component from a high strength steel and manufacture the first of 72 precision engineered castings . And following extensive quality control procedures , the first batch was delivered , replenishing the plant ’ s depleted stocks . “ We worked evenings , Saturdays and Sundays as appropriate to mitigate the client ’ s losses ” explains Richard Gough , Commercial Manager at Cti , which is a component of the University of Sheffield Advanced Manufacturing Research Centre with Boeing , based at Catcliffe , near Rotherham . “ It exemplifies our ability and willingness to deliver complex castings in a fraction of the lead-time required by traditional foundries when a client hits trouble .” Cti worked from a damaged component removed from failed equipment . Specialists from Cti ’ s laboratory and testing division used spectroanalysis to identify the material from which the component had originally been made and laser scanning technology to take measurements , which were fed into a computer-aided design system to create a 3D CAD model . This 3D CAD model was used to produce drawings of an undamaged component and process modelling techniques to add a feed system , creating a pattern for a mould that would fill with molten metal at the optimum rate to make perfect castings . In an effort to assure minimal risk and delivery in the shortest possible lead-time , two batches were launched ( each with marginally differing shrinkage rates applied ) down each of two different process routes ( ie four batches in total ). Data from the CAD drawing was fed into Cti ’ s additive manufacturing technology , which uses stereolithography to make replica patterns out of epoxy resin or moulds out of sand . The resin system incorporates a laser that traces the shape of the component in a bath of resin , becoming solid where the light strikes it , while the additive mould system binds sand together utilising a highly specialised chemical process . Cti then used its patented Replicast process to manufacture two batches of the components , which involves dipping each epoxy resin replica in a tank full of a special slurry to create a ceramic shell with an excellent surface finish . In the case of sand-print , the molten metal is poured directly into the mould itself . In the Replicast process , the ceramic shells are fired , removing the epoxy , put in casting boxes and surrounded with refractory sand . The boxes are shaken on a vibrating table . Air is then drawn out of the sand to create a firm support for the shell , before molten metal is poured in . www . castingstechnology . com
Cast Metal & Diecasting Times July / August 2016