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Investment Castings

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We are Technical Sales Representatives for Sylatech Limited and have had a successful relationship for over 26 years. We lead the field in the production of small, finely detailed and often very complex Investment Castings. Sylatech have been manufacturing intricate Investment Castings for companies in the Aerospace sector for over 40 years. Our typical markets are Aerospace, Military, Automotive, Defence, Medical, Communications, Electrical and more.

 

 

Why use the Sylatech Casting Process?

Reduce Costs – Design for Manufacture: simplify an assembly by combining a number of parts: eliminate the joining process, reduce the part count whilst improving the integrity of the finished product.

Reduce Time – We offer Rapid Prototyping with our state of the art Solidscape 3D printer. We can deliver metal prototypes in 5-10 days. We cast, machine and assemble from one source, saving time through the process.

Flexible Designs – Our tooling allows for quick modifications that costs 90% less than for a pressure die cast. We offer economic batch quantities of up to 500,000 parts per annum.

Quality – We offer a high quality finish, detail and specification. Please look at our gallery of sample components. Here we have a variety of sample Investment Castings that highlight the incredible detail that can be achieved.

What the Sylatech Casting Process can Deliver

Thin Wall Sections – We can manufacture wall sections as fine as 0.2mm (0.008”), typically 1-3mm (0.04” – 0.12”).

Light Weight Components – Manufacturing techniques can be used to minimise material usage whilst helping maintain the integrity of the component. Some components can weigh as little as 1g (0.04 oz.).

Small Components – Maximum size of 190mm x 160mm x 160mm (8” x 6” x 6”). A length of 250mm (10”) is possible providing no other dimensions exceed 100mm (4”).

Detail – Complex detail on internal and external surface features.

Superfine Surfaces – With 0.8 micrometres (32 micro inches) being the “as cast” finish.

Zero draft angles – eliminating the need to do additional machining.

The Sylatech Lost Wax Manufacturing Method

The Sylatech Investment Casting process is a ‘block moulding’ version of the ‘Lost Wax Method’. A fine plaster investment is applied under vacuum. The plaster penetrates all external features and fills internal voids to ensure that, as the mould is formed, every detail of the wax patterns is faithfully reproduced.

Materials

Standard Aluminium Alloys

Silicon Magnesium Series – These alloys are the best general purpose high strength cast alloys available and can be supplied with a variety of heat treatments. They also have a good salt water corrosion resistance and can be anodised to produce a thick black colour. Decorative anodising is not possible due to the metalic silicon content.

LM25 – The most commonly used cast aluminium alloy which can be supplied as cast or heat treated.

2L99 – This is a more tightly controlled version of LM25 for aerospace applications.

A356 – An American specification introduce into the UK by Micro Metalsmiths in 1964. It is generally made available for American Military specifications.

Zinc Magnesium Series – These alloys are less easy to cast because of their high velocity in the liquid state.

40E – This alloy is particularly suitable for castings which require flame or dip brazing. Components using this material should have uniform wall sections. To achieve corrosion resistance an additional surface treatment such as anodising or chromate conversion is neccessary. The material machines very well and is self ageing at room temperature over about 3 weeks.

712/LM31 – These alloys are similar to 40E. They are often specified for defence and space applications.

Copper Alloys

Silicon Brass MB1 – The most commonly cast copper alloy. It offers high wear resistance particularly in well lubricated conditions.

Aluminium Bronze AB2 – This alloy is known for its corrosion resistance, good tensile strength and retention of its properties at higher temperatures.

Manganese Bronze HTB3 – A highly alloyed brass which offers higher tensile strength and loadings than MB1, but lower elongation.

Manganese Bronze HTB1 – A medium strength alloy suitable for soldering. It offers good machineability.

Die Casting Brass DCB3 – A low strength material also suitable for soldering. It offers good machineability.

Silver Bronze SB1 – This unusual silver coloured material is an alloy of copper / nickel / manganese, with high resistance to salt water corrosion and erosion. The alloy is difficult to handle and should only be specified in premium applications and after consultation.

Surface Finishes

We offer the following Surface Treatments: Alochroming, Anodising, Plating, Hipping (Hot Isostatic Pressing) and Impregnation.

Packaging

All of our components are packed carefully and securely to ensure they arrive to you in the condition they left us. We use leading courier services and deliver using Express Service (next day delivery). If you require a different type of service, please let us know.

Your Enquiry

Please send Castech (UK) your enquiries via email or give us a call if you would like to discuss your requirements. Ideally, 2d PDF documents will be available and these will be supported by 3D IGES/STEP files. Once we have received your files we will take a look to familiarise ourselves and will give you a follow up phone call. We will then work on a quotation and get this over to you as soon as possible. We are here to help.

Please visit Sylatech Limited official website for more information on Investment Castings.